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Santonian siliceous sponges from Korzkiew near Kraków (Poland)

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R O C Z N I K P O L S K I E G O T O W A R Z Y S T W A G E O L O G I C Z N E G O A N N A L E S D E L A S O C I É T É G É O L O G I Q U E D E P O L O G N E

V ol. L — 3/4 : 409—43Л . K ra k ó w 1980

Jerzy M a ł e c k i *

SANTONIAN SILICEOUS SPONGES FROM KORZKIEW NEAR K R A K Ó W (POLAND)

(Pl. I — X II and 8 Figs.)

Santońskie gąbki krzemionkowe z Korzkwi koło Krakowa

(Pl. 1 — XII i 8 fig.)

A b s t r a c t . S ix ty species o f siliceous sponges h a v e been fo u n d in g lau conitic m a rls (Santonian ) a t K o rz k ie w n e a r K ra k ó w (Poland). S ix n ew species o f T ria - x o n ia h a v e been d escrib ed : A phrocallistes coronatus, Coscinopora sp., C. cylindrica, M yrm ecioptychium jordanum , Becksia ojcoviensis, Etheridgea сracoviensis.

Palaeomtologically interesting littoral Cretaceous sediments outcrop at Korzkiew, 12 km North of Kraków (Fig. 1). The stratigraphie profile in the exposure above the castle is as follows (Fig. 2): In the lower part there are cross-bedded, fine grained, white sands, ca. 8 m, thick, with an insignificant adm ixture of glauconite, assigned by Panow (1934) to the Vraconian. On the even sand surface rests a layer (ca. 0,6—0,8 m.

thick) of conglomerate with a great number of Jurassic cherts. This conglomerate is of Lower Cenomanian age according to Panow (1934) and Bukowy (1956). These sediments are overlain by greenish, glauco­

nitic, m arls or m arly clays (ca. 0,3 m. thick) which contain a rich fauna of sponges, echmoids, pelecypocLs and gastropods. Actinocamax granulatus

(Blv.) and A. verus Mill, point to the Santonian age of the marls.

Higher up are loesses which attain a thickness of ca. 5 m. The San­

tonian m arls are filled in places with generally poorly preserved sponges.

A collection comprising over a thousand specimens is believed to repre­

sent the whole assemblage of sponges that once lived in the littoral zone of the Santonian sea. The author has determined 60 species of sponges (Table 1), 52 of which had never been reported from Poland. This assem ­ blage consists of Triaxoniia (53 species), Tetraxonia (5 species) and Mo-

* A ca d em y of M ining and M e tallu rg y , In stitu te of G eology and Mimerai D epo­

sits A l. M ick iew icza 30, 30-059 K ra k ó w , P olan d .

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— 410

Fig. 2. G eological p ro file . 1 — san d s; 2 — con g lom erate (L ow er C en om an ian); 3 —•

g lau co n itic m a rls w ith sponges (S an to n ian );

4 — c la y e y loess; 5 — loess concretions;

6 — loess. P ro fil geologiczny. 1 — p ia sk i;

2 — zlepieńce (dolny cenom an); 3 — m a r­

gle g lau k o n ito w e z gąb kam i (santon); 4 — less zg lin ion y; 5 — k o n k re c je lesso w e;

6 — less

Fig. 1. S k etch m ap. M ap ka sch em a­

tyczn a

m

пах oni a (2 species). Predominant 'is the Lychniseosa superfaimily, repre­

sented by 39 species of Paracratioularia, Ventriculites, Sporadoscinia, Plocoscyphia. There are also species of superfamilies Hexactinosa (4), Tetracladina (3), Megaoladina (2) and Rhizocladima (2).

A comparison of the sponge assemblage from Korzkiew w ith that containing 107 species described by Hurcewicz (1956—1968) from the upper Cretaceous of Poland has revealed that the two assemblages have only 8 species in common. The Korzkiew assemblage shows close simi-

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4 1 1 —

T a b l e 1

S tra tig ra p h ie and G e o g ra fic a l d istrib u tio n of th e Sp on g iae fro m K o rz k ie w

" D istrib u tio n

G enus and species

A Ce T Со S

Ca M

! u 1 u

1 2 3 4 5 6 7 8 9 10

C ra tic u la ria rad icosa P octa С

C ra tic u la ria re lic ta S ch ram m en F G

C ra tic u la ria v irg a tu la S c h ra m m e n S F P. PE

P a ra c ra tic u ia ria fitto n i (M antell) EFG F F F E P

P a ra a ra tic u la x ia sw hseriata (Roem er) E E E

L ep to p h rag m a m icro p o ra S ch ra m m en G G G

S tre p h in ia co n v o lu ta H inde F F G FE

H e x a ctin e lla an g u sta ta (Schram m en) G G

A p h ro c a lliste s lobatus S c h ra m m e n G

A p h ro c a lliste s coronatus sp. nov. P

E u rete r a u ffi S ch ram m en F F G

F a rre a h a lli S ch ram m en G

P e rip h ra g e lla jo h a n n a e S ch ram m en G

P e rip h ra g e lla sim p lex S ch ra m m en G

V e n tric u lite s ra d ia tu s M a n te ll S P G F P P EPU P P

V e n tric u lite s c y lin d ra tu s S ch ra m m en G

V e n tric u lite s m a m m illa ris S m ith E E F EG E

V e n tric u lite s successor S ch ram m en G P

R h izo p o terio n tu b ifo rm e S c h ra m m e n F F F F G U FU FU R hizop oterion opsis p ru v o sti D e fr.-L e fr. F

L epidospongia rugosa S c h lü te r G G

O rthodiscus fra g ilis S ch ram m en F F F F FGP P P

N apaean a s tria ta (Schram m en) G G

Sp o rad o scin ia decheni (G oldfuss) E E EG EG E E

Sp o rad o scin ia teu to n iae S ch ram m en G

Sp o rad o scin ia stirp s S ch ram m en G

Sp o rad o scin ia cap ax Hinde E EF EF E E

L eiostraco sia an g u stata (Roem er) E E EG EG E E

C o scinopora in fu n d ib u lifo rm is G ldf. E E EG EG E E

C oscinopora q u in cu ncialis (Toulm. et Sm.) E E E E E

C oscinopora sp. P

C o scinopora v a ria b ilis sp. nov. P

C oscinopora m acro p o ra G old fuss FG F FG FG FG

C in c lid ella so lita ria S ch ram m en G

C a llo d ic tyo n an g u statu m Hinde E E E E

S e stro cla d ia fu rc a ta Hinde E E E E

M yrm ecio p tych iu m su b agaricoid es (Sincov) U

M yrm ecio p tych iu m jo rd a n u m sp. nov. P

B ecksia an g u stae S ch ram m en G

B ecksia so ek elan d i S c h lü te r G

B ecksia ojeow ien sis sp. nov. P

P locoscyp h ia fe n e s tra ta (Sm ith) E F G

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— 412 —

1 2 1 3 4 5 6 7 8 9 10

P locoscyp h ia ro em eri L eo n h a rd t G F F F

P locoscyp h ia re tic u la ta Hinde - E E E E E E

P locoscyp h ia com m unis M o ret F F

P locoscyp h ia lab ro sa (Sm ith) E EF E E E E E

P locoscyp h ia vag an s Hinde i E E E E E E

E theridgea goldfussi (Fischer) U U

E theridgea craco vien sis sp- nov. P

C am erospongia c ap itata T oulm . et Sm ith E E E ' E E E

T rem ab olites m egastom a (Roem er) С G F G G

T oulm in ia c a te n ife r (Sm ith) G E EF EF EF EG EG

Pol-yptycha becsioides D e fr.-L e fr. F

Sip h o n ia m icrop ora S ch ram m en G

R ag ad in ia rim osa (Roemer) EC

P ro k a lia p sis arb o rescen s (M ichelin) F FP

H om alodora tu b ero sa S ch ram m en GP G

H om alodora p u silla S ch ram m en GP

B olidium cap reo li (Roem er) С G G

S c y ta lia ra d icifo rm is (P hillips) С ;

1 P G EFG

A — A lb ia n , alb

Ce — C enom anian, cenom an T — T uronian, tu ro n Co -— C oniacian, ko n iak S — San to n ian , san ton

Ca — C am panian, k am p an : 1 — lo w er, d olny, u — up p er, g ó rn y

M •— M astrich tian , m a s try c h t: 1 — lo ­ w e r, dolny, u — u p p er, g ó rn y

С — C zechoslovak ia, C zech osłow acja E — England, A n g lia

Б’ —- F rance, F ra n c ja

G — G erm . Fed. Rep. and G erm . Dem.

Rep., RFN i NRD P — P oland , P o lsk a S — Spain, H iszpania U — U SSR , Z SR R

laxity to the sponge fauna from the Upper Cretaceous sediments of Powołże. In the -assemblage studied six new species were determined.

They are: Aphrocallistes coronatus :sp. nov., Coscinopora sp., Coscinopora variabilis sp. nov.,. M yrm ecioptychium jordanum sp. nov., Becksia ojco- viensis sp. nov., Etheridge a cracoviensis sp. nov. Sponges are randomly distributed throughout the 30-cm layer of the Santonian marls. (Fig. 3), most of them being sheared along the plane parallel to the bedding.

Their skeletal elements are rarely preserved, having ais a rule undergone dissolution, and only cavities 'are left b y them. From the random d istri­

bution of sponges and other fossils (echinoids, pelecypods, gastropods, belemnites, ammonites) in the sediment it may be concluded that these organisms were transported over short distances. On a whole m any fossil encrusting organisms are preserved, such as oysters, annelids or bryo- zoans. This abundance of fauna indicates that the Santonian sea at Korzkiew was shallow, warm and w ell aerated.

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Fig. 3. D istrib u tio n o f fossils in the S a n to n ia n m a rls.

R ozm ieszczenie sk am ien iałości w w a rs tw ie m arg li san toń skich .

1. M icraster sp. 2. Inoceramus sp. 3. Belem nites sp. 4. Plocoscyphia sp. 5. V en tricu ­ lites sp. 6. C raticu laria sp. 7. Sporadoscinia sp. 8. M yrm ecioptychium sp.

SY ST E M A T IC D ESCRIPTION 1 O rd er: T riax o n ia Schulze, 1887 ( = H ex actin ellid a Schm idt, 1872) S u b o rd e r: D ictyon in a Z ittel, 1877

S u p e rfa m ily : H exactinosa S ch ram m en , 1903

Fc'rmly: GratŁculariUJae Ra u ff, 1S93 em end. Sch ram m en , 1937

G enus: C raticu laria Z ittel, 1878 em end. Sch ram m en , 1937 (Type species: C raticularia p arallela Gold fuss, 1833)

Craticularia relicta Schrammen, 1910-—12

(Pl. I, Fig. 5)

1910— 12. C raticularia relicta Schram m en; S ch ra m m en A ., p. 233, P l. 31, Fig. 4, 5;

Pl. 43, Fig. 4; T ext PL 10, Fig. 1.

1958— 60. C raticu laria relicta S ch ram m en ; D e fr.-L e fr. S., p. 51, P l. 1, Fig. 3, 10.

M a t e r i a l : 12 specimens. SK 2

R e m a r k s : This species differs from other C raticularia in shape and in having bigger inhalant and exhalant pores.

O c c u r r e n c e : Germany: Quadraten Kreide; France: Coniaoian.

1 T he collectio n u n d er d escrip tio n is housed in th e In stitu te of G eology and M in e ra l D eposits of th e A c a d e m y of M ining and M e ta llu rg y ; co llectio n ’s code S K 1— 60.

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4 14 —

C raticularia virgatula Schrammen, 1910—12

(Pl. I, Fig. 6)

1910— 12. C ra tic u la ria v irg a tu la S ch ra m m en ; S c h ra m m e n A ., p. 234, P l. 30, Fig. 1;

P l. 43, Fig. 3; T ex t P l. 11, Fig. 9.

1968. C ra tic u la ria v irg a tu la S ch ra m m en ; H urcew icz H., p. 59, P l. 14, Fig. 3.

M a t e r i a l : 6 specimens. SK 3

R e m a r k s: Craticularia virgatula differs from C. roem eri and C. relicta

in having a considerably sm aller thickness of w alls, a sm aller diameter of pores and a larger number of pores per 100 mm2.

G en u s: L ep top h rag m a Z ittel, 1877 (Type species: S c y p h ia m u rch ison i G old fuss, 1833)

Leptophragma micropora Schrammen, 1910—12

(iP.l. II, Fig. 5a, 5b)

1910— 12. L ep to p h rag m a m icro p o ra S ch ram m en ; S c h ra m m e n A., p. 237, P l. 32, Fig.

4, 5; P l. 43, Fig. 2; T ex t P l. 9, Fig. 1.

M a t e r i a l : 2 specimens. SK 6

R e m a r k s : This species differs from Leptophragma murchisoni in ha­

ving sm aller and thicker ostia and postica.

O c c u r r e n c e : Germany: Granulaten Kreide, Quadraten Kreide, Muc- ronaten Kreide.

F a m ily : A p h ro c a llistid a e G ra y , 1867 G enus: A p h ro c a lliste s G ra y , 1858

Aphrocallistes coronatus sp. nov.

(Pl. III, Fig. 2a, 2b; T e x t Fig. 4a, b)

H o 1 o t y p e: Pl. III, Kg. 2a, 2b. SK 10

D e r i v a t i o n of name: After a characteristic shape of the sponge.

D i a g n o s i s : A ram ifying Aphrocallistes with a short, cylindrical stem and short, lateral, flattened and ra d ia lly disposed branches. Branches hollow inside and separated from each other by a very thin diaphragm

■occurring at the joint. Ostia densely concentrated.

M a t e r i a l : 3 specimens.

D i m e n s i o n s (in mm): Specimen SK 10

Height Diameter Diameter of Thickness of Thickness of radial

osculum w all branches

56 76 48 3—8 8—10

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4 15 —

Fig. 4. A p h ro c a lliste s co ro n atu s sp. nov.

a. U p p er v ie w . W id o k z g ó ry b. S id e v ie w . W id o k z boku

D e s c r i p t i o n: A furmel-like sponge with a short cylindrical stem. On lateral w alls there are rad ially disposed branches. Branches hollow inside, approx. 10 mm thick. Ostia approx. 0,5 mm in diameter, densely and uniform ly distributed. In an area of 1 cm2 there are about 80—90 ostia.

The surface of gastral w alls (diaphragms) is sievelike, covered w ith po­

lygonal irregu larly distributed postica. Parenchym al skeleton dense, con­

sisting of smooth hexactines with beams of diversified length (0.1—1.2 mm), irregu larly distributed in the network so that meshes are m ostly triangular. Cortical skeleton dependent, formed by superficially situated radia which are swollen, deformed and surround ostia w ith thick arcuate

rings.

R e m a r k s : T'his species is sim ilar in its morphology to Aphrocallistes kazimierzensis Hurc. (1968). However, the latter species has long ram i­

fying outgrowths w hile A. coronatus sp. nov. has radial ribs.

O c c u r r e n c e : Poland: Korzkiew — Santonian.

F a m ily : V e n tric u litid a e Z ittel em end. S ch ram m en , 1910.

G en u s: R hizop oterion Z ittel, 1878 (Type species: S c y p h ia cerico rn is G old fu ss, 1826)

Rhizopoterion tubiform e Schrammen, 1910

(Pl. IV, Fig. la , lb )

1910— 12. R h izop oterion tu b ifo rm e S ch ra m m en ; S c h ra m m e n A., p. 213, P l. 34, Fig. 1.

1968. R hizop oterion tu b ifo rm e S ch ram m en ; H urcew icz H., p. 76, PI. 21, Fig.

1, 2. (syn o n ym y given)

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4 16 —

M a t e r i a l : 16 fragments. SK 19.

O c c u r r e n c e : Poland: Lower Campanian; France: Turanian and Se- nonian; Spain: Senonian; USSR: Upper Cretaceous.

F a m ily : C oscinoporid ae Z ittel, 1877

G en u s: C oscinopora G old fu ss, 1833 (Type species: C oscinopora in fu n d ib u lifo rm is G ld f. 1833)

Coscinopora quincuncialis (Toulm. et Smith) Smith, 1848

(Pl. VI, Fig. la , lb )

1847— 48. V e n tric u lite s qu in cu n cialis Toulm . et S m ith ; S m ith T., p. 207. / 1883. C oscinopora q u in cu ncialis T oulm . et S m ith ; H inde C., p. 106.

Ma t e r i a 1: 2 complete specimens. SK 30.

R e m a r k s : This species is read ily distinguished from C. infundibuli­

form is due to its narrow elongated form and sm aller dimensions of the canal. Our specimens differ from the English forms only in the shape of summit, which is elliptical in the Polish specimens and round in the English ones.

O c c u r r e n c e : Poland: Korzkiew — Santonian.

Coscinopora sp.

(Pl. VI, Fig. 5a, 5b; T ex t Fig. 5a)

A small cask-shaped Coscinopora with a conical stem and a root-like ending. Outer surface horizontally annulate, covered w ith ostia arranged in a very regular quincunx.

M a t e r i a l : 3 specimens.

D i m e n s i o n s (in mm): Height Diameter Thickness of w all

SK 31 a 47 . 27 1—2

SK 31 b 47 28 1—2

O c c u r r e n с e: Poland: Korzkiew — Santonian.

Coscinopora variabilis sp. nov.

(Pl. V, Fig. 8; T ex t Fig. 5b)

H o 1 o t y p e: Pl. V, Fig. 8. SK 32

D e r i v a t i o n of name: After variable shape of the sponge.

D i a g n o s i s : Coscinopora cylindrical in shape, with a short, root-like ending. Inner and outer surface covered with ostia and postica disposed in a very regular quincunx. Lateral oscula on sm all craterlike upswells of the outer surface.

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Fig. 5a. C oscinopora sp.

5b. Coscinopora v a ria b ilis sp. nov.

M a t e r i a l : One well-preserved specimen.

D i m e n s i o n s (in mm): Height Diameter Diameter of lateral osculum

35 27 1—3

D e s c r i p t i o n : Cylindrical sponge with thin walls and a short conical stem. On the outer surface there are sm all upswells with -lateral oscula m easuring 1-—3 mm. The whole Lateral surface covered with ostia dispo­

sed in a very regu lar quincunx. The inumber of ostia ranges from 220 to 260 per 1 cm2. On the inner surface there are postioa, more densely disposed than in other species. Perenchymal skeleton composed of lychrasks.

R e m a r k s : Lateral oscula maike this species different from other spe­

cies of the genus Coscinopora.

F a m ily : C o elo p tych id ae Z ittel, 1877

G en u s: M yrm ecio p tych iu m Sch ram m en , 1910— 12 (Type species: M yrm ecio p tych iu m bodei Sch ram m en , 1910— 12)

M yrmecioptychium subagaricoides (Sincov, 1871)

(Pl. VII, Fig. 3a, 3b, 3c, 4a, 4b)

1962. M yrm ecio p tych iu m su b agaricoid es (Sin cov); Z h u ra v le v , O sn ovy paleon t. ..., p. 40, Fig. 50a, 50b.

M a t e r i a l : 3 complete speciemens 'and m any fragments. SK 37

D e s c r i p t i o n : A fungiform sponge, sim ilar to Coeloptychium. It has a sligh tly concave shield attached to a short, thick, 'cylindrical stem.

Shield w alls thick round the stem, becoming still thicker towards m ar­

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gins. Margin of shield obliquely truncated, forming an acute angle with the lower ridge. Upper surface well-m arked, regu larly ribbed. On the nibs there are big exhalant pores (0.8—1.1 mm in diameter), irregu larly

■distributed. On the lower surface of the shield there are 11—14 reg u larly arranged dichotomous folds, 4—6 mm wide near the stem and 12—25 mm wide at the margin. On the folds there are inhalant pores, approx. 3 mm in diam eter, surrounded w ith collars. The number of ostia on a ll folds of a given specimen ranges from 3 to 5. W ater canals not developed.

Parenchymal network formed by lychnisks, very regu larly arranged.

Loose cortical .skeleton on the upper slide. In this network, on the whole surface of the shield octohedral centres of lychnisks and horizontal beams form 'characteristic, concentrically arranged fibrous strands and fairly regular, quadrangular cortex meshes, sporadically surrounded by sligh tly modified lychnisks. On the lower and m arginal side the cortex is denser, reticulate, without concentric strands. Ostia surrounded by an individua­

lized network of meshes.

R e m a r k s : The specimens from Korzkiew differ from Sincov’s form in having fewer ostia on folds.

O c c u r r e n c e : Poland: Korzkiew •— Santonian; USSR: Santonian.

M yrm ecioptychium jordanum sp. nov.

(Pl. VIII, Fig. la , lb , lc ; T ex t — Fig. 6 a, b, c)

H o lo t y p e : Pl. VIII, Fig. la , lb , lc. SK 38

D e r i v a t i o n of name: A fter the Jordan fam ily of Korzkiew.

D i a g n o s i s: A mushroom-shaped M yrmecioptychium, concave at top, attached to a short, thick, cylindrical stem. Lower surface has regular dichotomous folds with inhalant pores surrounded with collars. On the outer surface there are irregu larly distributed ostia. Shield m argin wide, with rad ially dispersed ovate slits. Parenchym al network formed by lychnisks, very regu larly arranged.

M a t e r i a 1: 4 complete specimens and a few fragments.

D i m e n s i o n s (in mm): R r a b с

SK 38 a 80 40 25 1.5 3.0

SK 38 b 66 30 21 1.0 2.5

D e s c r i p t i o n : A mushroom-shaped M yrmecioptychium, concave at top, attached to a short, thick, cylindrical stem. Irregularly distributed ostia on the outer surface. On the lower surface of the shield there are 10—12 regu larly arranged dichotomous folds. On the folds are inhalant pores, approx. 3 mm in diameter, surrounded w ith collars. Three inha­

lant pares are found 'on one fold. Shield m argin obliquely truncated, 2.5—3.0 о т wide, pierced b y rad ially dispersed ovate slits. The slits are 0.5—2 cm long and approx. 0.5 om wide. W ater canals very irregular.

— 4 18 —

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— 419 —

Fig. 6. M yrm ecio p tych iu m jo rd a n u m sp. nov.

a. U p p er v ie w . W id ok z g ó ry

b. L o w e r v ie w . W id o k z dołu с. Sectio n . P rz e k ró j

Parenchym al and cortical skeletons formed toy lychnisks, very regu larly arranged.

R e m a r k s : M. jordanum sp. nov. differs from the species M, aubaga- ricoides in having a w ide margin with rad ially dispersed ovate slits and a v ery thick shield.

F a m ily : B ecksiidae S ch ram m en , 1910— 12

G en u s: B ecksia S c h lü te r, 1868 (T ype species: B ecksia so ek elan d ii S c h lü te r, 1868)

Becksia ojcoviensis sp. nov.

(PL. IX, Fig. la , lb ; T ext-F ig . 7 a, b, c)

Ho l o t y p e: Pl. IX, Fig. la, lb. SK 41

D e r i v a t i o n of name: ojcoviensis — from the locality of Ojców.

D i a g n o s i s : Cup- 'or pear-shaped sponge w ith a thick conical stem, composed of rad ially disposed and twisted tubes. Oscula of the tubes round and irregu larly distributed on the outer surface of sponge. Oscula of the uppermost tubes are on the border of .the 'central concavity. Ostia

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— 420 —

Fig. 7. B ecksia o jco vien sis sp. nov.

a. U p per v ie w . W id ok z g ó ry b. S id e v ie w . W id o k z boku

с. Sectio n . P rz e k ró j

and postica differentiated in size. Cortex amd parenchymal skeletons composed of lyćhnisks.

M a t e r i a l : 6 complete specimens and numerous fragments.

D i m e n s i o n s (in mm): cup-shaped specimens pear-shaped specimens

diameter of sponge 70—120 30—55

height of sponge 40— 50 40—60

diameter of sponge tubes 8— 12 8—12

thickness of tube w alls 1— 3 1— 3

depth of central cavity 35— 60 10—25

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D e s с т i p t d o n : Cup- or pear-shaped sponge with a thićk conical stem and deep central concavity. Sponge w alls built of tubes, 1—3 mm thick and 8—12 mm in diameter. Tubes rad ially and obliquely arranged. Round oscula irregularly disposed on the outer surface of the sponge. Ostia of the uppermost tubes situated on the border of the central concavity.

Round ostia, approx. 0.5 mm in diameter, irregu larly disposed on the surface of walls. Cortex and parenchymal skeletons formed by clotty lychnisks.

F a m ily : C am erospongiidae S ch ram m en , 1910— 12

G en u s: E th erid gea Tate, 1865 (Type species: E theridgea m ira b ilis T ate, 1865)

This group comprises single sponges, hemispherical in shape. On the whole upper surface of the sponge are big, round or oval pores. The pores form a system of bush-like canals. A big, irregular osculums is lo­

cated on top of the sponge. The whole upper surface covered with a fine, porous layer. The lower part of the sponge .(without cover) has radial folds, usually poorly developed. Between the folds there occur scare oscula. The sponge accrues from the bottom or is attached to it by means of a short .stem. Skeleton built of lychnisks.

Etheridgea goldfussi (Fischer, 1837)

(Pl. X , Fig. 5a, 5b)

1962, E theridgea goldfu ssi (F isch er et W ald heim ); O snovy paleont. ... p. 44, Fig. 52.

1969. E th erid gea g o ld fu ssi (F isch er et W ald h eim ); K r a t k ij o p red ieliciel isk o p ajem ych bezpozw onocznych; Fig. 80.

M a t e r i a l : 4 complete spec im es and several incomplete ones, SK 48 R e m a r k s : This species has been known only from the Santonian of the Wołga and Desna regions in the USSR. Its occurrence in Santonian deposits in the vicinity of Kraków is of great significance.

O c c u r r e n e e : Santonian — USSR.

Etheridgea cracoviensis sp. now.

(Pl. X I, Fig. la , Lb; Tex1.-F.ig. 8 a, b)

H o l o t y p e : Pl. XI, Fig. la , lb. SK 49

D e r i v a t i o n of name: Ater the city of Kraków.

M a t e r i a l : 5 complete specimens.

D i a g n o s i s : Pear-shaped sponge. Its outer convex surface is covered with a shield which has a big irregular 'Osculum and several sm aller ones.

The lower, conical part of the sponge is composed of anastomosing,

8 — Rocznik PTG 50/3—4

— 421 —

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convoluted, tubular canals having 0.5 cm iin diameter. On the sponge walls are a few inhalant pores.

D e s c r i p t i o n : Pear-shaped sponge, supported by a very short stem.

The upper convex surface of the sponge is covered with a delicate shield.

— 422 —

Fig. 8. E theridgea craco vien sis sp. n o v.

a. U p p er v ie w . W id ok z g ó ry b. Sid e v ie w . W id ok z boku

с. Section. P rz e k ró j

In the middle of it there is a biig irregu lar osculum. Between the oscu- lum and the margin of the upper surface are several (10—15) small, round or oval oscula having 2—4 mm in diameter. The m argin of the shield is undulated. The lower conical part of the sponge is composed of anastomosing, convoluted, tubular 'canals having 0.5 mm in diam eter. On the lateral surface of the sponge there are a few round, inhalant pores.

Parenchymal network is formed by lyohnisks.

R e m a r k s : E. cracoviensis sp. nov. has some features in common with

E. goldfussi (Fischer), from which it differs in having a concave shield and an undulated margin. Its irregular osculum is sm aller than in

E. goldfussi. The lower part of the sponge iis almost flat in E. goldfussi

and conical in E. cracoviensis.

G en u s: C am erospongia d’O rbigny, 1847 (Type species: S c y p h ia fu n g ifo rm is G old fuss, 1833)

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Camerospongia capitata (Toulm. et Smith, 1848)

(Pl. V III, Fig. 2a, 2b, 2c)

1848. C ep h alites cap itatu s T oulm . e t S m ith ; S m ith T., p. 288, P l. 14, Fig. 11.

1883. C am erospongia cap itata Toulm . et S m ith ; H inde J., p. 140.

M a t e r i a l : 6 specimens. SK 50

R e m a r k s : This species resembles С. jungijorm is (Gldf.) from which it 'differs, however, in having a less elevated summit and non-projecting m argins (as in the Goldfuss forms).

O c c u r r e n c e : England: Upper Chalk.

G en u s: T rem ab o lites Z ittel, 1877 (Type species: M anon m egasto m a R oem er, 1841)

Tremabolites megastoma (Roemer, 1841)

(Pl. X , Fig. 2)

1841. M anon m egastom a R o em er; R oem er F. A., p. 3, P l. 1, Fig. 9.

1872. C am erospongia m egastom a (R oem er); S c h lü te r С., p. 19, 27.

1877. T rem ab o lites m egastom a (R oem er); Z ittel K ., p. 56.

1958. T rem ab o lites m egastom a (R oem er); D é fre tin -L e fra n c S., p. 93, P l. 14, Fig. 3 (sy n o n y m y given)

M a t e r i a l : 5 .complete specimens, very w ell preserved. SK 51

О с c u r r e i n ce: Germany: Turoni an, Upper Senonian; France: Emsche- rian, Aptian; Czechoslovakia: Cenomanian.

G en u s: T oulm in ia Z ittel, 1878 (Type sp ecies: C ep h alites c a te n ife r Sm ith , 1848)

Toulminia catenifer (Smith, 1848)

(Pl. X I, Fig. 5)

1848. C ep h alites c a te n ife r S m ith ; S m ith T., p. 286, P l. 14, Fig. 14— 16.

1848. C ep h alites com pressus S m ith ; S m ith T., p. 287, P l. 14, Fig. 10.

1958. T oulm in ia c a te n ife r (Sm ith); D é fre tin -L e fra n c S., p. 95, P l. 14, Fig. 8 (syn o­

n y m y given).

Ma t e r d a 1: 6 specimens. SK 52

O c c u r r e n c e : England: Upper Chalk; Germany: Turanian, Upper Se­

nonian; France: Santonian, Campanian.

G en u s: P o ly p ty c h a D é fre tin -L e fra n c , 1958

Polyptycha becsioides Défr.-Lehr., 1958

(Pl. X II, Fig. la , lb )

1958. P o ly p ty c h a becsioides D é fr.-L e fr.; D é fre tin -L e fra n c S., p. 98, P l. 14, Fig. 2, 5;

T e x t Fig. 29.

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M a t e r d a 1: 2 specimens. SK 53

R e m a r k s : This species resembles in its form and structure the spe­

cies of the genus Coeloptychium. Its upper surface is sim ilar to that of the species belonging to the genera Becksia and Plocoscyphia. Distinct differences between the three genera mentioned above and the genus

Polyptycha made distinguishing the latter new igenus possible. P. becsio- ides was found in Senonian deposits w ithin the bed with M icraster cor- testudinarium , and thus in the same stratigraphie horizon as that in which the described assemblage of sponges was found.

O c c u r r e n c e : France: Santonian, Campanian; Poland: Rorzkiew — Santonian.

O rd er: T etrax o n ia Sch u ltze, 1877

S u b o rd e r: T e tra lith istid a L ag n eau -H éren g er, 1962 S u p e rfa m ily : T etrac la d in a Z ittel, 1878

F a m ily : P h y m a te llid a e Sch ram m en , 1910

G enus: S ip h o n ia P a rk in so n , 1822 em end. Z ittel, 1878 (Type species: S ip h o n ia koeni- gi M an tell, 1822)

Siphonia micropora Schrammen, 1910—12

(Pl. X II, Fig. 6a, 6b)

1910— 12. S ip h on ia m icro p o ra S ch ram m en ; S ch ra m m en A., p. 94, PL 2, Fig. 9, 10;

T ex t P l. 4, Fig. 10.

M a t e r i a l : 1 specimen. SK 54

O c c u r r e n c e : Germany: Quadraten Kreide.

F a m ily : D iscoderm idae S ch ram m en , 1910— 12

G enus: R agadinia Z ittel, 1878 (Type species: C upulospongia rim osa R oem er, 1864)

Ragadinia rimosa (Roemer, 1864)

(Pl. X II, Fig. 2a, 2b)

1864. C u pu losp ongia rim o sa (R oem er); R oem er A., p. 51, P l. 17, Fig. 8

1866. R ag ad in ia rim o sa (Roem er); H urcew icz H., p. 63, P l. 13, Fig. la , lb ; T ex t Fig.

16 (syn o n ym y given).

M a t e r i a l : 16 w ell preserved specimens. SK 56

O c c u r r e n c e : Germany; England, France and Czechoslovakia: Ceno- maman to Senonian; Poland: Lower and Upper Campanian — Zbyczyee, Bonarka, Miechów, Skirajniwa, Pnialki.

F a m ily : P h ym a ra p h in iid a e S ch ram m en , 1910.

G enus: P ro k a lia p sis S ch ram m en , 1901

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Camerospongia capitata (Toulm. et Smith, 1848)

(Pl. V III, Fig. 2а, 2b, 2c)

1848. C ep h alites cap itatu s T oulm . e t S m ith ; S m ith T., p. 288, PI. 14, Fig. 11.

1883. C am erospongia cap itata To-ulm. et S m ith ; H inde J., p. 140.

M a t e r i a l : 6 specimens. SK 50

R e m a r k s : This species resembles С. fungiform is (GAdf.) from which it differs, however, in having a less elevated summit and non-projecting margins (as in the Goldfuss forms).

O c c u r r e n c e : England: Upper Chalk.

G enus: T rem ab o lites Z ittel, 1877 (Type species: M anon m egastom a R oem er, 1841)

Tremabolites megastoma (Roemer, 1841)

(Pi. X , Fig. 2)

1841. M anon m egastom a R oem er; R o em er F. A., p. 3, PL 1, Fig. 9.

1872. C am erospo ngia m egastom a (R oem er); S c h lü te r С., p. 19, 27.

1877. T rem ab o lites m egastom a (R oem er); Z ittel K ., p. 56.

958. T rem ab o lites m egastom a (R oem er); D é fre tin -L e fra n c S., p. 93, PI. 14, Fig. 3 (syn o n ym y given)

M a t e r i a l : 5 complete specimens, very w ell preserved. SK 51

) c c u r r e i n ce: Germany: Turoni an, Upper Senonian; France: Emsche- ian, Aptian; Czechoslovakia: Ceno ma ni an.

enus: T o u lm in ia Z ittel, 1878 (Type species: C ep h alites c a te n ife r Sm ith, 1848)

Toulminia catenifer (Smith, 1848)

(Pl. X I , Fig. 5)

■8. C e p h a lites c a te n ife r S m ith ; S m ith T., p. 286, PI. 14, Fig. 14— 16.

8. C ep h alites com pressus S m ith ; S m ith T., p. 287, PI. 14, Fig. 10.

8. T o u lm in ia c a te n ife r (Sm ith); D é fre tin -L e fra n c S., p. 95, PI. 14, Fig. 8 (syno­

n y m y given).

t e r d a 1: 6 specimens. SK 52

• c u r r e . n c e : England: Upper Chalk; Germany: Turonian, Upper Se- ian; France: Santonian, Campanian.

us: P o ly p ty c h a D é fre tin -L e fra n c , 1958

Polyptycha becsioides Défr.-Lehr., 1958

(Pl. X II, Fig. la , lb )

P o ly p ty c h a becsioides D é fr.-L e fr.; D é fre tin -L e fra n c S., p. 98, PI. 14, Fig. 2, 5;

T ext Fig. 29.

— 423 —

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— 426

Bolidium capreoli (Roemer, 1864)

(Pl. X II, Fig. 4)

1864. A m orp h osp on g ia c a p reo li R oem er; R oem er F., p. 55, P l. 19, Fig. 7 1884. B o lidium c a p re o li (R oem er); P o cta P., p. 10, P l. I, Fig. 1; T ext PI. 1

M a t e r i a l : 16 specimens. SK 59

R e m a r k s : Bolidium capreoli (Roemer) differs from B. palm ata (Roe- mar) in having a sm aller number of branches. It also differs from B. ar-

bustrum Hurcewicz in having an irregular and short ramification.

O c c u r r e n c e : Germany: Lower Senonian; Czechoslovakia: Сеагота- nian.

F a m ily : S c y ta liid a e L a u b en fels, 1955 em en d. L ag n eau -H éren g er, 1962

This fam ily 'includes more or les cylindrical sponges with a deep, tube-like spongocoel and a well-developed canal system. Rhizoclones are linked together in a compact but non-fibrous skeleton. Numerous inhalant pores, situated on the lateral surface of walls, are connected w ith the canals. Apopores are disposed on the surface of the spngocoel.

G en u s: S c y th a lia Z ittel, 1878 (Type sp ecies: J e r e a tu rb in a ta R oem er, 1864)

Scythalia radiciform is (Phillips, 1835)

1968. S c y th a lia ra d ic ifo rm is (P hillips); H urcew icz H., p. 53, P l. 12, Fig. 1—3; T ext Fig. 12 (syn o n ym y given).

M a t e r i a l : 1 specimen. SK 60

Oc c u r em с e: This species is known from the Aptian to Campanian of Germany, France and Poland.

M an u scrip t re ce iv e d J a n u a ry 1979 accep ted F e b ru a ry 1980

W Y K A Z L IT E R A T U R Y — REFERENCES

B u k o w y S t. (1956), G eolog y o f th e a re a b etw een C ra c o w and K o rz k ie w . B u ll.

In st. Geol., 108; 17— 82, W a rsz a w a .

D e f r e t i n - L e f r a n c S. (1958— 1960), C o n trib u tio n à l ’étu d e des Sp o n g iaires siliceous du C ré ta c é su p é rie u r du N ord de la F ran ce. T heses Fac. Sei. L ille ; 1— 173, L ille .

G o l d f u s s A . (1826— 1833), P e tre fa c ta G erm an iae. D ü sseld orf.

H i n d e J . G. (1883), C atalo g u e o f th e fo ssil sponges in th e geological d e p artm e n t of th e B ritish Miuseum of N a tu ra l H isto ry. London.

H i n d e J . G. (1887— 1893), A m on o grap h o f th e B ritish fo ssil sponges. P a rts I— HI.

P alaeo n to g rap h . Soc., London.

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H u r c e w i c z H. (1966), Siliceous sponges from the Upper Cretaceous of Poland.

P art I. Tetraxonia. A c ta P a leo n t. Pol. 11/1: 15—155. Warszawa.

H u г с e w i с z H. (1968), Siliceous sponges from the Upper Cretaceous of Poland.

P a rt II. Monaxonia and Triaxonia. A c ta P aleo n t. Pol., 13/1: 1—96. Warszawa.

L a u b e n f e l s M. E. (1955), Archaeocyatha and Porifera. In: R. C. Moore (ed).

Treatise on Invertebrate Paleontology, Part E (Archaeocyatha, Porifera). L aw ­ rence.

P a n o w E. (1934), Stratygrafia kredy krakowskiej. Rocz. Pol. T ow . G eol., vol. 10;

577—585, Kraków.

P o ć t a P. (1883), Beiträge zur Kenntnis der Spongien der böhmischen K reidefor­

mation. Abt. I: Hexactinellidae. A b h. K . Böhm . Ges. W iss. M ath. Nat. K l., 12;

1—48. Prag.

P o c t a P. (1885), Beiträge zur Kenntnis der Spongien der böhmischen K reidefor­

mation, Abt. Tetractinellidae, Monactinellidae, Calcispongiae. Ibidem . 13, 7; 1—14.

R o e m e r F. A. (1864), Die Spongiratien des Norddeutschen Kreidegebirges. P a - laeon tog rap h ica, 13; 1—64, Cassel.

S c h r a m m e n A. (1901), Neue Kieselschwämme aus der oberen Kreide der Umgebung von Hannover und Hildesheim. M itth. R oem er-M useu m , 14; 1—26, Hildesheim.

S c h r a m m e n A. (1902—1903), Neue Hexactinelliden aus der oberen Kreide.

M itth. R oem er-M useu m , 15; 1—26, Hildesheim.

S c h r a m m e n A. (1910—1912), Die Kieselspongien der oberen Kreide von Nord­

westdeutschland. Theil 1, 2. P alaeo n to g rap h ica, Su p p l. 5; 1—385, Stuttgart.

S c h r a m m e n A. (1924), Die Kieselspongien der oberen Kreide von Nordwest­

deutschland. Theil 3, mit Beiträgen zur Stammesgeschichte. M in. Geol. P aläont., S e r. 1, 2; 1—159, Berlin.

S i n c o v I. (1871—1872), Ob jurskih i melovykh okamenelostyakh Saratovskoj gu­

berni (in Russian), M ater. Geol. Rossü, 4; 40—64, Moskva.

S m i t h J. T. (1848), On the Ventriculitidae of the Chalk; their classification. A n n.

an d Mag. Nat. Hist., ser. 2, v. 1, London.

T a t e R. (1865), On the correlation of the Cretaceous formations of the North-East of Ireland. Q u art. J . G eol. Soc., London.

Z h u r a v l e v a I. T., R e z v o y P. D., (1962), Tip Porifera (in Russian). In: Oiiov J. A. (Ed). O snovy P aleon tologii, 18—73. Akad. Nauk SSSR, Moskva.

Z i t t e l K. (1877—1879), Beiträge zur System atik der fossilen Spongien, Theil I—III, N. Jb . M in. Geol. P aläon t., I: 337—378, II: 561—618, III: 1—40, München.

STRESZCZENIE

Litoralne osady kredowe okolic Krakowa charakteryzuje bogactwo fauny. Jednym z punktów występowania osadów kredowych interesują­

cych poleontologicznie jest Korzkiew (12 km na N od Krakowa, fig. 1, 2).

W tej 'miejscowości w odkrywce nad zamkiem odsłania się profil utwo­

rów kredowych, z których pochodzi opisany w niniejszej pracy zespół gąbek. W odkrywce tej odsłonięte są dużej miąższości (ok. 8 m) serie piasków białych, drobnoziarnistych, przekątnie warstwowanych z nie­

znaczną domieszką glaukonitu. Piaski te nie zaw ierają fauny, zostały one zaliczone przez Panowa (1934) do wrakonu. Na wyrównanej powierzchni

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428 —

piasków leży warstwa zlepieńca (60—80 cm) z dużą ilością jurajskich buł krzemiennych, w której Panów (1934) znalazł faunę wskazującą na dolny cenoman. Fakt ten potwierdził Bukowy (1956). Na zlepieńcach dolno- cenomańskich osadziły sdę zielonkawe m argle lub iły m argliste z glauko- nitem (30 cm) z bardzo bogatą fauną złożoną z gąbek, jeżowców, małży, ślimaków. Znaleziono w tej warstwie belemnity: Actinocam ax granulatus

(Blv.) ii Actinocamax verus M ill (Bukowy 1956) w skazują na santoński wiek tych m argli. Margle sanbońskie kończą profil kredy w tej odkryw­

ce, wyżej leżą lessy, których miąższość dochodzi do 5 m.

Margle santońskie są miejscam i przepełnione gąbkami na ogół źle za­

chowanymi. Z bogatego zbioru liczącego ponad tysiąc okazów wybrano i opracowano dobrze zachowane okazy, które reprezentują zapewne cały zespół gąbkowy, żyjący w strefie przybrzeżnej morza santońskiego. Autor oznaczył 60 gatunków gąbek (tabela 1), z tego zespołu 52 (gatunki nie były znane dotychczas z ziem polskich. W tym bogatym zespole w ystę­

pują gatunki należące do trzech rzędów: Tmiaxonia (53 gatunki), Tetra- xonia (5 gatunków), Monaxonia (2 gatunki). Przeważają przedstawiciele nadrodziiny Lychniscosa (39 gatunków), wśród których masowo w ystępu­

ją gatunki z rodzajów: Paracraticulariia, Ventriculites, Sporadoscinia, Pio- coscyphia. Inne nadirodainy jak Hexactinosa reprezentują 4 gatunki, Te- tracladina 3 gatunki, Megaeladina 2 gatunki i Rhizocladina 2 gatunki.

Zespół gąbek z Korzkwi ma tylko 8 wspólnych gatunków ze 107-gatuo- kowym zespołem opisanym przez Hurcewicz (1966—68) z górnej kredy Polski. W ykazuje on duże podobieństwo do fauny gąbek znanej z kredy górnej Powołża. W badanym zespole stwierdzono również 6 nowych ga­

tunków, a to: Aphrocallistes coronatus sp. nov., Coscinopora variabilis sp.

nov., Coscinopora sp., M yrmecioptychium jordanum sp. nov., Becksia ojcoviensis sp. nov., Etheridgea cracoviensis sp. now.

Na podstawie wyżej wymienionych faktów dochodzimy do wniosku, iż w tej części morza santońskiego były specyficzne warunki, dzięki któ­

rym rozwinął się tu tak bogaty i zupełnie odrębny zespół gąbek. Gąbki w w arstw ie (ca 30 era) m argli santońskich rozrzucone są bezładnie, w ięk­

szość ich jest ścięta wzdłuż płaszczyzny równoległej do warstwowania, elementy szkieletowe są rzadko zachowane, zwykle ulegały (rozpuszczeniu, pozostały po nich jedynie próżnie. Z bezładnego układu gąbek i innych skamieniałości w osadzie (jeżowce, małże, ślimaki, belemnity, amonity) wnioskujemy, iż organizmy te nie żyły w tym miejscu, gdzie je dzisiaj znajdujemy. Przenoszone one były do osadu z nieznacznej jednak od­

ległości. Na w ielu skamieniałościach zachowane są organizmy oskoru- piające takie jak: ostrygi, pierścienice czy mszywioły. To wielkie bo­

gactwo fauny wskazuje, że zbiornik santoński w Korzkwi był płytki, do­

brze przewietrzany i ciepły.

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J. Małecki

Rocznik Pof. Tow, GeoL, 1.1., г, 3-4

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J. Małecki Pl. Il

R ocznik Pol. Tow. Geol., t. L, z. 3-4

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J M a łe c k i PL I l i

Rocznik Pol. Tow Geol,, t L, z. 3 -4

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J. Małecki Р/. IV

Rocznik Pot. Tow. Geol., t. L, z 3-4

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EXPLANATION OF PLATES — OBJAŚNIENIE PLANSZ

Plate — Plansza I Fig. 1. P a ra c ra tic u la ria fitto n i (Mantell), SK 4, X 1.

Fig. 2a. P a ra c ra tic u la ria su b seria ta (Roemer), SK 5, upper view, widok z góry, X 1.

Fig. 2b. P a ra c ra tic u la ria su b seria ta (Roemer), SK 5, lateral view, widok z boku, X 1.

Fig. 3. C ra tic u la ria radicosa Poeta, SK 1, X 1.

Fig. 4. P a ra c ra tic u la ria su b seria ta (Roemer), SK 5a, X 1.

Fig. 5. C ra tic u la ria re lic ta Schrammen, SK 2, X 1.

Fig. 6. C ra tic u la ria v irg a tu la Schrammen, SK 3, X 1.

Fig. 7a, b. H ex actin ella sp., X 1.

Plate — Plansza II Fig. 1. P a ra c ra tic u la ria su b seria ta (Roemer), SK 5, X 1.

Fig. 2. F a rre a h a lli Schrammen, SK 12, X L

Fig. 3. P e rip h ra g e lla jo h a n n a e Schrammen, SK 13, X 1.

Fig. 4. H ex a ctin ella an g u stata (Schrammen), SK 8, X 1.

Fig. 5a. L ep to p h ram a m icro p o ra Schrammen, SK 6, lower part of the spone, dolna część gąbki, X 1.

Fig. 5b. The same specimen, lateral view. Ten sam okaz, widok boczny.

Fig. 6. S tre p h in ia co n v o lu ta Hinde, SK 7, X 1.

Fig. 7a. A p h ro c a lliste s lob atu s Schrammen, SK 9, lower part of the sponge, dolna cząść gąbki, X 1.

Fig. 7b. The same specimen, upper part of the sponge. Ten sam okaz, górna część gąbki.

Plate — Pil a ns za III Fig. 1. E urete r a u ff i Schrammen, SK 11, X 1.

Fig. 2a. A p h ro c a lliste s coron atu s sp. nov., SK 10, upper view. Widok z góry. X 1.

Fig. 2b. The same specimen, lateral view. Ten sam okaz, widok z boku.

Fig. 3. R hizopoterionopsis p ru v o s ti Dfr.-Lefr., SK 20, X 1.

Fig. 4. P e rip h ra g e lla sim p lex Schrammen, SK 14, X 1.

Fig. 5. V e n tric u lite s rad iatu s MamteW, SK 15, fragment of lower part of the sponge, Fragment dolnej części gąbki. X 1.

Fig. 6. Ven tricu lites c y lin d ra tu s Schrammen, SK 16, X 1.

Fig. 7a. V e n tric u lite s ra d ia tu s Mantell, SK 15, A view from the low er side. Widok od dołu. X 1.

Fig. 7b. The same specimen, lateral view. Ten sam okaz, widok z boku.

Fig. 8. V e n tric u lite s ra d ia tu s Mantell, X 1.

Plate — Plansza IV

Fig. la. R h izop oterion tu b ifo rm a e Schrammen, SK 19, upper view. Widok z góry.

XI.

Fig. lb. The same specimen, low er view. Ten sam okaz, widok z dołu.

Fig. 2a. 2b. L epidospongia ru g osa Schlüter, SK 21, X 1.

Fig. 2c. The same specimen, lower view. eTn sam okaz, widok z dołu.

Fig. 3, 4. O rthodiscus fra g ilis Schrammen, SK 22, X 1.

Fig. 5a. V e n tric u lite s m a m illa ris Smith, SK 17, side view. Widok z boku. X 1.

Fig. 5b. The same specimen, low er view. Ten sam okaz, widok z dołu.

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Plate — Plansza V Fig. 1. S p o rad o scin ia stirp s Schrammen, S K 26, X 1.

Fig. 2, 6. Sp o rad o scin ia teu to n iae Schrammen, SK 25, X 1.

Fig. 3. L eio straco sia a n g u sta ta (Roemer), S K 28, X 1.

Fig. 4, 5. C allo d ictyo n a n g u statu m Hinde, SK 35, X 1.

Fig. 7. B ecksia au g u stae Schrammen, S K 39, X 1.

Fig. 8. C oscinopora v a ria b ilis sp. nov., S K 32, X 1.

Plate — Plansza VI

Fig. la . C oscinopora qu in cu n cialis (Toulm., Smith), SK 30, upper view, widok z gó­

ry. X 1.

Fig. lb. The same specimen, side view. Ten sam obraz, widok z boku.

Fig. 2a. C oscinopora in fu n d ib u lifo rm is Goldfuss, SK 29. side view. Widok z boku.

XL

Fig. 2b. The same specimen, upper view. Ten sam obraz, widok z góry.

Fig. 3. N apaeana s tria ta (Schrammen), SK 23, X 1.

Fig. 4a. C oscinopora m a cro p o ra Goldfuss, S K 33, side view. Widok z boku. X 1.

Fig. 4b. The same specimen, low er part of the sponge. Ten sam okaz, dolna część gąbki.

Fig. 5a. C oscinopora sp., SK 31, upper view. Widok z góry. X 1.

Fig. 5b. The same specimen, side view. Ten sam okaz, widok z boku.

Fig. 6. C in clid ella s o lita ria Schrammen, SK 34, X 1.

Fig. 7. S p o rad o scin ia c ap ax Hinde, SK 27, low er view. Widok z dołu. X 1.

Plate — Plansza VII Fig. 1. S e stro cla d ia fu rc a ta Hinde, SK 36, X 1.

Fig. 2. L eio straco sia a n g u sta ta (Roemer), S K 28, X 1.

Fig. За. M yrm ecio p tych iu m su bagaricoid es (Sincov), SK 37, lower view. Widok z do­

łu. X 1.

Fig. 3b. The same specimen, upper view . Ten sam okaz, widok z góry. X 1.

Fig. 3c. The same specimen, side view. Ten sam okaz, widok z boku. X 1.

Fig. 4a. M yrm ecio p tych iu m su bagaricoid es (Sincov), SK 37, upper view. Widok z gó­

ry. X 1.

Fig. 4b. The same specimen, lower view. Ten sam okaz, widok z dołu.

Plate — Plansza VIII

\

Fig. la. M yrm ecio p tych iu m jo rd a n u m sp. nov., SK 38, low er view. Widok z dołu.

XI.

Fig. lb. The same specimen, upper view. Ten sam okaz, widok z góry. X 1.

Fig. lc. The same specimen, side view. Ten sam okaz, widok z boku. X 1.

Fig. 2a. C am erospongia c a p ita ta Taulm., Smiith, SK 50, upper view. Widok z góry.

XI.

Fig. 2b. The same specimen, lower view. Ten sam okaz, widok z dołu. X 1.

Fig. 2c. The saime specimen, side view. Ten sam okaz, widok z boku. X 1.

Plate — Plansza IX

Fig. la . B ecksia o jco vien sis sp. nov., SK 41, side view. Widok z boku. X 1.

Fig. lb. The same specimen, upper view. Ten sam okaz, widok z góry. X 1;

Fig. 2a. B ecksia so ek elan d i Schlüter, SK 40, side view. Widok z boku. X 1.

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J. Małecki PL V

Rocznik Pol. Tow. Geol., t. L, z. 3-4

(28)

J. Małecki Pi Vi

Rocznik Pot. Tow. Geol.,t.L, z. 3-4

(29)

J. M a łe cki Pl. VII

Rocznik Pol. Tow. Geol., t. L, z. 3-4

(30)

J. Małecki Pl. VU i

Rocznik Pol. Tow. Geol., t. L, z. 3-4

Cytaty

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