Lower Turonian radiolarians (Polycystina) from borehole Władysławowo IG 1 (Baltic region)

Geological Quarterly, Vol. 39, No.3. 1995. p. 341-372

Hannn G6RKA

Lower Turonian radiolarians (Polycystina) from borehole Wladyslawowo IG 1 (Baltic region)

Six mierop::li::leonloiogiC::lJ so.mples from borehole Wlndys!::lwoWO IG 1 (Poland. Baltic region) supplied very rich mntcrinl of ~iJiccous rruJiolmi::ln skeletons (Polycystin::l). The samples ore of Lower Turoniall age, as indicated by

(he Rndiolnria and'associmed planktonic foraminifers. Seventeen ~pecie.~ of spumcllariuns ond lhirteen nassclla~

riMS are described.

INTROOUCTION

Borehole Wladyslawowo IG 1 located in the Baltic region was drilled by the Polish Geological Institute (Warsaw, Poland). Six micropalaeontological samples from the fo l- lowi ng depths: 1 31.20, 128.00, 124.70, 1 24.00, 121.00, 114 .00 m yielded rich material for studyi ng siliceous skeleto ns of Radiolaria (polycystina). The samples were dated as Lower Turonian, On the basis of Radiolaria and associated foraminifers. Described below are 17 species of Radi olaria belonging to Spumellaria and 13 belonging to Nassellaria. The collection of Radiolaria reported in this paper is housed in the Laboratory of Palaeontology of the Institute of Geology of Warsaw University; the collection acronym is IGPUW-V.

GEOLOGICAL, STRATIGRAPHICAL AND ECO LOGICAL REMARKS

Borehole Wladyslawowo IG 1 is situated in Baltic region, 50 km NNE from Gdansk, at

the base of the Hel Spit (F ig. 1). The th ickness of Lower Turonian deposits in borehole

Wladyslawowo IG 1 equa ls 72.00 m; their boundary with underl ying Cenomanian strata

342 Hanna G6rkn

Fig. 1. Localion of Wladyslawowo JG I borehole Lokalizacja otworu wiertniczego Wtadyslawowo IG I

occurs al a deplh 186.00 m, while the lower boundary of overlying Upper Turonian sediments is probably at 114.00 m depth.

The Radiolaria are best represented in dark grey, compact sandy silt at a depth of J.l9.7G-13I.20 m and in sandy clay at 1I4.0G-119.70 m, where only a single planktonic foraminiferal species, Hedbergella planispira (Tappan), occurs (Fig. 2).

Among Radiolaria (polycystina), typical Turonian species include Cavaspongia ante-

lopensis Pessagno,

C.

califomiensis Pessagno, Crucella cachensis Pessagno. Eucyrtidium (?)matsumotoi

Taketani and

Orbiculiforma vacaensis

Pessagno.

In the Lower Turonian sediments of Wladyslawowo IG 1 there occur planktonic Foraminifera of the family Rotaliporidae, with Hedbergella caspia (Vassilenko), very common

H.

{rocoidea (Gandolfi), as well as Praeglobotruncana imbricata (Mornod). Also tepresented are Heterohelicidae with Heterohelix striata (Ehrenberg) and Planomalinidae with Globigerinelloides escheri (Kaufmann).

There are no agglutinated foraminifers in the Lower Turonian of Wladyslawowo IG I.

Benthic foraminifers are represented only by a single species of Polymorphinidae - pyrulina cylindroides (Roemer), and Turrillinidae - Neobalimina schwageri (Yokoyama).

The latter species was previously reported only from the Boreal zone. There are also members ofNonionidae (Nollionella eretacea Cushman), Lingulogavellinidae, Anomalini- dae and other families. Echinoid spines and fish teeth are also found.

The radiolarian assemblage described herein is much richer than the assemblage of the sa me age from borehole Leba IG 1 (H. Gorka, 1991), both in terms of species diversity and

abundance.

CONCLUSIONS

Numerous Radiolaria from the families Porodiscidae, Patulibracchidae, Cavaspongidae.

Spongodiscidae, Hagiastridae, Orbiculiformidae within Spumellaria, and from Xitidae,

Stichocyrtidae, Theoperid ae, Archaeodictyomitridae, Spongocapsulidae and Cyrtoidea in-

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certae sedis

within Nassellaria, as well as accompanying planktonic Foraminiferaof several families: Heteroheli cidae, Planomalinidae, Schackoinidae and Rotaliporidae may indicate presenceofBoreai Province in Baltic region during EariyTuronian. Planktonic foraminifers suggests rather shallow and cold water basin.

PREVIOUS WORKS ON CRETACEOUS RADIOLARIA IN POLAND

The first unspecified Cretaceous Radiolaria from Poland were mentioned by Z. Sujkow- ski in 1930. They came from a deep borehole;n Lublin. In 1932, the same author presented a list of 20 species of Radiolaria (polycyst;na) from the Eastern Carpathi ans. Then, after quite a long break, S. Geroch and W. Nowak (1963) described Radiolaria from the Lower Cretaceous deposits of Lipnik near Bielsko-Biala in the Western Carpathian region. This study was revised by H. G6rka and S. Geroch (1989).

The present author described Lower Turonian Radiolaria from the Leba IG \ borehole (H. Gorka, 1991), as well as Radiolaria from Lower Campanian outcrops in Cracow (H.

G6rka, \989).

Recently, M. A. Gasinski (1988) and M. B'lk (1993) described Radiolaria from the Pieniny Klippen Belt (Carpathians). The latter author recog nized 53 species of Poly cyst ina.

The present author's research on Radiolaria from an Upper Cretaceous outcrop in Splawa (Carpathians) is in preparation .

SYSTEMATIC DESCRIPTIONS

Subclass Radiolaria Muller 1858

Superorder Po1ycystinaEhrenberg 1875 emend. Riede11967 Order Spurnellari. Ehrenberg 1875

Family Porodiscidae Haeckel 1881 emend. Koslova in: M. G. Petrushevskaya, G. E. Ko slova, 1972

Genus

Hisliaslrum

Ehrenberg 1847

Type species

Hisliaslrum qualemarium

Ehtenberg 1847

Histiastrum aster

Lipman 1952 (PI. I, Fig. 12; PI. II, Figs. 5-11)

1952 HiSliaslrum aster Lipman; R. H. Lipman: p. 35, Pl. 6, 7, 11.

1962 HiSliastrllln asfer Lipman; R. H. Lipman: p. 300, f'1. 2, Fig. 5.

1966 Hisfiaslrum aster Lipman; O. E. Koslova, A. N. Gorbovetz: p. 84, PI. ), Pig. 9.

1981 CrucelJa aster (Lipman); K. Naknseko, A. Nishimura: p. 148. PI. 2, Figs. 9, 10.

1981 Hisliaslrum asteJ" Lipman; A. Schaaf: p. 435, PI. 8. Fig. L: PI. II, Fig. 5.

1989 HiSlinstrum aSler Lipm .. m; H. G6rka: p. 333, PI. 14, Fig. 1 I.

1989 Hislinslrum ruler Lipman; H. G6rka. S. Geroch: p. 187, PI. 3, Fig. 5.

J991 Hi.friaSlrum aSlerLipman; H. G6rka: p. 43. Pl. 2, Fig. II.

Lower TuronillCl radiolarians (Polycyslioa) ... 345

M ^Q t e riD 1 : 80 well preserved specimens.

D i ^{In C} n s ion s (in ).lm): tOlallength Dlong the diagonal-180-237, basal shoulder width - 60-80.

Rem ark s . There is much variability of width and extent of the shoulders, of the degree of concavity of the sides, and of rounding of the terminations.

o ^{c cur} r en c e. Cosmopolitan species of Albian to Campanian. Poland: Hauteri - via n at Lipnik (near Bielsko-Biata), Campanian of Cracow, Lower Turonian of Leba IG I and Wtadystawowo IG

I.

Histiastrum iatumLipman 1960 (PI. II, Figs.

1-3)

1960 HiSliaSlr!.un [arum Lipman; R. H. Lipman: p. 130, PI. 19, Pigs. 7, 8.

1962 His/ias/fum latum Lipman; R. H. Lipmnn: p. 303-304, PI. 2, Fig. 4.

Mat c ria 1 : 38 well prescrvcd specimens.

Dim ens ion s (in Jim): distance between shoulderlcrminations-II0-140.

Des c rip

t

ion. Skeleton square, flat, with straight or rarelyslightlyconcavesides . Terminations straight or slightly extended. Centrum slightly raised. Irregularly spaced perforations with small pores.

Rem ark s. The specimens from Wladyslawowo IG I tend to have quite regular dimensions, and the variability concerns the degree of concavity of sides and protrusion of the terminations.

o c cur r e n c e . Santonian to Campanian of Western Siberia. Poland: Lower Turo- nian of W1adys!awowo IG I.

Family Porodiscidae Haeckel 1881 emend. Petrushe vskaya, Koslova 1972 Genus Pet<tinastrum Haeckel 1881

Type species Pentinastrum asteriseus Haeckel 1887

Pentinastrum subbotinae Lipman 1960 (PI. IV, Fig. 8)

1960 PeminaSlrUm subbolinae Lipman; R. H. Lipman: p. 132. PI. 30, Figs. 6, 7.

1962 PenlillLlslrum .mbbolinae Lipman; R. H. Lipman: p. 30~307, PI. 2. Fig. 7.

Mat e ria l : 5 differently pre~n'cd speeimens.

Dim ens ion s (in ~): distance between terminations - 76-100, width wirhou( processes - 90-1 l5, maximum width of proces~es - 45-75.

Des c rip t ion. Skeleton pentagonal, flat, porous, with 5 stout, shon co nical processes. Between the processes the sides are deeply concave.

Rem ark s . The terminations of processes are truncated or rounded, without spines.

346 Hanna G6rka

o c cur r e nee. Santonian to Campanian of Russia. Poland : Lower Turonian of Wladyslawowo IG \.

Family PatuIibracchidaePessagno 1971 emend. Baumgartner 1980 Genus Crucella Pessagno 1971 emend. Baumgartner 1980

Type species Crucella messina Pessagno 1971

Crucella cachensis Pessagno 1971

(pI.!,

Figs. 1-11; PI. II, Fig. 4)

197 J Crncella cachensi.~ Pessagno; E. A. Pessagno: p. 53, PI. 9, Figs. 1-3. 1976 Crucella cachensis Pessagno; E. A Pessagno: p. 31-32, PI. 3, Figs. 14, t 5.

1986 Crucella cachen.sis Pessagno; 1. Thurow, W. Kuhnl: p. 436, Fig. 9: 5,6.

1989 Crucella cachensis Pessagno; H. G6rka: p. 331. PI. 11. Figs. 3. 4.

1991 CrucelLa cachmsj,f Pessagno; H. Gorka: p. 42. PI. 2. Figs. 7.8.

M a (e ria I : 120 well preserved speeimens.

Dim ens ion s (in \.Lm): maximum shoulder length along diagonal- 140-254. basal shoulder width- 48-85.

Rem ark s . The specimens from Wladyslawowo IG 1 display substantial variability of shoulder width, angle between shoulders, and size of the central part.

o c cur r e nee : Lower and Middle Turonian of California, Cenomanian and Tu- ronian of Morocco, Spain and Italy. Poland : Lower Turonian ofl:.eba IG 1 and Wladysla- wowo IG 1, Lower Campanian of Cracow.

Family CavaspongidaePessagno 1973 Genus Cavaspongia Pessagno 1973

Type species Cavaspongia ante/opensis Pessagno 1973

Cavaspongia ante/opensis Pessagno 1973 (PI. m, Figs. 1-3, 6-12; PI. IV, Fig. 14)

1973 Cavaspongia ante/open,rLr Pessagno; E. A Pessagno: p. 76-77, PI. IS, Fig. 46; PI. 19, Fig. I.

1976 Cava,rpongia antelopeltsis Pessagno; E. A. Pess:lgno: p. 37, PI. 4, Fig. 4.

1986 Ctnlaspongia (lnleiopensis Pessngno; A. Schaaf, V. Thomas: p. 1597, PI. 2, Fig. F.

1986 Ctnlaspongia anJeiopensis Pessagno; 1. Thurow, W. Kuhnt PI. 9, Fig. 3.

1991 Cavaspongia aflleiopensis Pessagno; H. G6rka: p. 40-42. PI. 2, Fig. 9.

M a I e ria. I: 90 well preserved specimens.

Dim ens jon s (in )l.m); heighl-&4-142, maximum shoulder width- 52-80.

Rem ark s . There is little variability of size, but the specimens vary in the degree of

conca vity of sides, "gate" depth and rounding of the terminations.

Lower Turonian radiolarians (Polycystina) ... 347

o c c ur r e nee . Lower Turonian of California, Morocco and Italy, Lower Campa- nian of Wadi Ragmi de Semail, Oman. Poland: Lower Turonian of Leba IG 1 and Wlady stawowo IG 1.

Cavaspongia californiensis Pessagno 1973 (PI.IV, Fig. 7)

1973 Cavaspongia californicnsi.t Pessflgno; E. A. Pessagno: p. 77, PI. 19, Figs. 2-4.

1976 Cavaspongia californiensis PesSflgno; E. A. Pessagno: p. 37, Pl. 4, Figs. 2-3.

Mat e ria I: 15 specimens.

Dim en:> ion s (in ~m): heighl- about

no,

maximum shoulder width - about 50.

Rem ark s. The specimens fr om Wladyslawowo IG 1 have more slender and elongated shoulders than the type and paratypes of Cavaspongia calif orniensis Pessag no.

o c c ur r e n c e. Cenomanian

^[0

Coniacian, Lower and Middle Turonian of Cali- fornia. Poland: Lower Turonian of Wladyslawowo IG 1.

Cavaspongia

sp . (PL III, Figs. 4, 5,13 , 14)

Mat e r i n I : 7 specimens.

Dim ens i 0 u s (in Mm): height-about 108-153, maximum shoulder widlh-about 55-75.

Rem ark s . Those specimens which are more flattened than

Cavaspoflgia atlte- loperlSis

Pessagno and which have no prominent "gate" were designated as

Cavaspongia

sp. o ^{c cur r e n ee.} Lower Turonian ofWladyslawowo IG

1.

Genus Pyramispongia Pessagno 1973

Type species Pyramispongia magnifica Pessagno 1973

Pyramispongia glascockensis

Pessagno 1973 (PI. IV, Figs. 9-11)

1973 Pyramispongia gfascackcnsis Pessagno; E. A. Pessagno: p. 79-80, Pl. 21, Figs. 2-5.

1976 Pyramispongid gfascockensu Pessagno; B. A. Pessngno: p. 37, Pi. 1, Fig. 9.

1982 Pyramispangiaglascockensis Pessagno; Y. Takelani: PI. I, Fig. 18.

1982 Pyramispongiag/(lJcockensis Pc.ssagno; M. Yamauchi: PI. 1. Fig. 5; PI. 2, Fig. 9.

1986 Pyramispongiaglascockensis Pc.ssagno; 1. Thurow, W. Kuhnt: text-Fig. 9: 4.

1988 Pyramispangicl giascockensis Pc.ssagno; 1. Thurow: p. 3 I, PI. 2, Fig. 23. M nl e ria 1 : 25 well preserved specimens.

Dim ens ion s (in Mm): maximum width -148-166.

348 Hanna G6rka

Rem ark s. In specimens from Wladyslawowo IG I no cupola in the central part nor spines have been observed, probably due to their damage.

o c cur r e n

C

e . Upper Cenomanian to Middle Turonian of Europe and NW Africa.

Cenomanian to Turonian of California, Cenomanian

10

Santonian of Japan. Poland: Lower Turonian ofWladyslawowo IG 1.

Family Spongodiscidae Haecke! 1882 Genus Spongodiscus Ehrenberg

j

854

Type species Spongodiscus resurgens Ehrenberg 1854

Spongodiscus multus Koslova 1966 (Pl.IV. Figs . 1-4)

1966 Spongodiscus (1) mullu.f Koslov .. ; G. E. KOSJOVR, A. N. Gorbovetz: p. 87-88. PI. 4, Fig. 10.

1989 SpongodiscuJ Inullus Koslov .. ; H. G6rka. S. Geroch: p. 188, Pl, 3, Fig. 6.

1991 Spoligodiscus mutlltS Koslova.; H. G6rka: p. 43. PI. I, Figs. 1-3.

M a ( c r i ^it J : 35 ~ecimens.

Dim ens ion ~ (in I .. un): diameter -about 95-130, height - about 23--40.

Rem ark s. There is little size variability in specimens from Wladyslawowo IG I.

o c cur r e nee. Cosmopolitan species in Turonian to Campanian. Poland:

Lower Turonian of Leba IG I and Wladyslawowo IG I.

Family Hagiastridae Riedel 1971 emend. Baumgartner 1980 Genus Hagiastrum Haeckel 1881 sensu Baumgartner 1980

Type species Hagiaslrum plenum Rust 1885

Hagiastrum

sp.

(PI. IV, Figs. 5. 6)

1989 Hagia..fITUlfLsp.; H. G6rkn: p. 329-330, Pi. 14, Fig. 12.

Mat e rill 1 : 7 specimens.

o

^{i III ens ion s (in ~m):} maximum height-160--210, maximom width -90-100.

Des c rip t ion. Skeleton fiat, formed by four shoulders. set at right angles to each other; one coaxial pair of shoulders is longer than the other, perpendicular pair. Shoulder terminations are rounded and without spines. Central area concave, forming asmaillacuna.

Rem ark s . No patagium has been observed in specimens from Wladyslawowo IG 1. Furthermore. the angle between shoulders tend s to be wider than the straight angle given in the original djagnosis of the genus HagiastrUln.

o c cur r e n c e. Poland: Lower Campanian of Cracow and Lower Turonian of

Wladyslawowo IG I.

Lower Turonian rodio!arinns

Family Orbiculiformidae Pessagno 1973 Genus Orb/cullforma Passagno 1973 Type species Orbiculifofl1w quadrata Pessagno 1973

Orbiculiforma reniUaeformis (Campbell et Clark 1944) emend. Passagno 1976 (PI. V, Figs. 3, 5, 9)

349

1944 Spol1godiscus (SpolIgoaiJCf;lus) ref'iUac/ormis CnmpbeJ! e! Clark; A. S, Campbell, B. L, Clark: p. 18, PI.

6, Figs. 5, 6, 8,

to.

1966 Spongodiscus impressu.; Upman: G, E. KosloVli, A t-L Gorbovet7.: p, 87, Pi. 4, Pigs, 8, 9,

! 976 Orbicllliforma renitlaejonms (CampbeU et Clark); E. A. Pes~gno: p, 36, PI. U, fig, 8,

! 9S1 Spotlflodiscus renillacjormis Cnmpbell ct Clark; A Schaaf: p. 438, PI. 8, Fig~. 4. 5. 8 1984 Spon.godiscus n:niUf1eformi.~ Cnr.lpbell ct Clark; A. SCh113f: p. l6 j, Fig. L

1988 Oroicull/orma reniUaeJormis (CarnpbeH et Clark}; V, S. Vishncvskaya: Pl. 2, Pig, 2.

M 11 t e ria 1 ; 35 very well preserved specimens.

Dim c n ion s (in 11m): diameter ~ 140-! 80, centra! ci,wity diameter -

50·-10,

Rem ark s. The presence of small triradjate spjnes in this species seems

to

be doubtful.

o c cur r e nee. Cosmopolitan species, present in Wand E Europe from Albian to Maastrichtian, as well as in the Maastrichtian of California. Poland: Lower Turonian of Wladyslawowo IG

I.

Orbiculiforma vacaensis Pessagno 1973

(PI. V,

Figs.

1,2)

1973 Orbh;u.lijorma vacaemis Pcssagno; E. A. Pessagno: p. 7J!..-75, PI. 17, Figs, 1,·6.

1976 Orb&:uliforma vacacl/sis Pessagno; E, A, Pessagno: p, 37, pJ. 6, Figs, 6, 8, 9.

1982 Orbkulifimna vocaensis Pessagno; M. Y'Hn.aucni: p. 394, PI. 2, Rig. g, 1989 Orbiculifomta vaC()ensis PcSsagno; H, G6rM: p,

330., PI.

9, Figs. 7, JO.

M B l e r i n I : 25 well preserved specimens.

D i In eli s Ion 5 (in ~m): diamclcr-107-165, diametcr of the ccnlral cavity - 50-55,

Rem ark s . This species shows high variability of dimensions. Specimens from Poland are smaller and less incised at the periphery,

o c cur r e n c e . Upper Cretaceous of California and Japan, Poland: Lower Turo- nian of Wladyslawowo IG I and Campanian of Cracow.

Orbiculiforl1Ul ex gr. It'.onticelloensis Pessagoo 1973 (pI V, Figs.4, 6, 7)

1973 Orbicullforma monticeiloensis Pessagno; E. A, Pcssngno: p. 72-73, Pl. 16, Figs. 5, 6; PI. (8, Figs. 1.2.

1976 OrblcwiJbntta nwllliceUocnxis Pcssagno; E. A. Pessngno: p. 35, PI. 6, Figs. 4, 5.

350 HllilflO Gorka

- - - -

^..

- - - -

1. 982 Otbiculiformtl monriceUof!l1sis Pessagno; Y. Taketani: p. 368, PI. 2, Fig, 18.

t990 Orbiculiforma ex. gr. mOnficelwensis Pessagno; E. A M. KoutsOUKOS, M B. Hart: p. 56, PI, 3, Figs, 2-5.

M ;)

t e r i n

1 ; 15

we!! preserved specimens,

D i ttl ens ion:; (in j.un}: maximum width -150-190, maximum diameter of the central cavity - 35~190,

length of processc.s' nbout 3,

Des c rip t ion _ Discoidal shape, almost circular with a small peripheral incision.

Central cavity shaUow. Very short processes are present at the periphery.

Rem ark s. Triradiate spines have not been observed on specimens from Poland.

o c cur r e nee. Turonian to Santonian of California. Lower Campanian to tower Upper Turonian of NE Brazil. Poland: Lower Turonian ofWladyslawowo IG I.

Orbiculiforma sp.

(PI. v, Fig. 8)

1988 Gen. et sp. LDoot aff 1/(jlocryptocanium sp. A; J, Thoro..w, PL 8, Fig. 19,

1990 Arc}u:utQspnaera(?) sp. A; E. A. M. Koutsoukos, M, B. Hart: p, 54, Pl. 2, Figs. [··3.

M II t e ria I 2 well pre.~erved specimens.

D i III e oS i 0 us (in f,im):totaldiameter-nbo\lt175-i80.

Rem ark s . Orbiculiforma sp. resembles Archeosphllera(?) sp. A from Lower to Middle Turonian of northeastern Brazil because of its sphaencal shape, presence of tiny perforations and spongy structure of the skeleton, although the description deviales from E. Haeckel' s (1862) diagnosis. The material described herein is most closely similar to the Cretaceous specimen from the Atlantic Ocean illustrated by J. Thurow (1988) and labelled as Gen. et sp . indet

o ^{c cur} r e nee Poland: Lower turonian of Wladyslawowo IG

I.

Family Incerta. sedis Gen. et sp_ indet. A

(PI ill, Fig. 15)

Mat e r l 1.\ 1 : 1 well preserved specin.leo.

Dim ens Ion s (in ~); heighl 180, max.imum width - 194.

Rem ark s . The specimen is slightly biggerthan those of Cavaspongiaante!opensis Pessagno, more robustly buiJt, with two sides convex and one side concave, and with markedly rounded terminations.

o c Cur r e nee. Poland: Lower Turonian of Wladys!awowo IG L

Lower Turonian radiolarians

M (\ t

e r

i :i !: 1

wen

preserved specimen.

Gen, e( sp, indet B (PI. IV, Fig, 12)

Dim ens iOn s (in jlm): height -160, maximum shoulder width - 8(1

35t

Des c rip t ion, Skeleton flat, oftrianguJar outline, with arched, concave base and the two opposite sides incised in mid-length, Terminations rounded, Strucrure spongy,

o

^C

^{cur r e} nee. Poland: Lower Turonian of Wladyslawowo IG L

Gen. et sp. indet. C (pL IV, 13)

M (\ t e ria. 1 1 well preserved specimen.

D i TIl ens 10 n s (in~m);height-J40.maximumwld!h~ 120.

Des c rip

t

ion. Skeleton flat. tiara-shaped, of triangular outline, with slightly concave base and the two other sides convex, Terminations less rounded than in the specimen de$cribed above. Structure spongy.

o ^c cur r e nee. Poland: Lower Turonian ofWladys!awowo IG 1.

Order Nassellaria Ehrenberg 1875 Family Xitidae Pessagno 1977b

Genus Amphipyndax Foreman 1966 emend. Empson-Morin 1982 Type species LithoJtrobus (Lithostrobus) pseudoconulus Pessagno 1963

Amphipyndax medlOcds (Tan Sin Hok 1927) (pI VI, Figs. 1,2)

r927 Dictyomltrar!Udiocris Tan Sin HoI<; Tan Sin Hole: p, 1955, PL 10, Fig, 32,

1944 StichocOfJsa {?)Sfockf Campbell el Clark; A, S, Campbell, B. L. Clark: p. 44, Pl. 8, Figs. 31-33.

1%8 AmphJ'pyruJax s!odd (Camphcll et C1ark); H. Foreman: p. 73, Pi. 8, Fig, 12u-c.

1974 Amphipyndax mediOcm (inn Sin Hok); G. W, Renz: p. 788, PI. 5, FJgs. 7,9; PI. 12, fig. 3.

1981 Amphipyndax mMiOcris (Tan Sin Hok); A. Schaaf: p. 431, PI. 3, Fig. 11, PL 22, Fig. 7a, b, 1988 Amphipyndax m.:diocris (Tan Sin Hok);

t

Thurow: PI. 1, Fig, 7; PL 4, Fig. 5.

1991 Amphipyrulax mediocris (Tan Sin Hok); H. Gorka: p. 43, PL 2, Figs. 2, 3.

Mat e r j a 1 : 35 well preserved speClmcn!L

Dim e :1 S ion s (in p.m): height -117-140, width at the base - 70-78

Des c rip t ion. Skeleton conical. with subsphaerical, unperforated cepbalis. Pos- tabdominaisegrnents, numbering 3 to 5, ofsubtrapezoidai shape, slightly swollen, with very minuscule perforation of irregular

to

rounded pores, arranged in transverse rows,

Locally~

a second layer is observed. Basal orifice subcircular,

352 HDJlnll G6rka

Rem ark s.

Little

variability of size

is

observed

in

Amphipyndax mediocris (Tan

Sin Hok).

o ^{c cur}

r e nee. Cosmopolitan species from Turonian to Campanian. Poland:

Lower Turonian of

Leba IG 1 and Wladyslawowo IG l.

Amphipyndax uraLica (Gorbovetz 1966) (PI. VI, Fig.

10)

1%6 Dictyomifra uralica GOJ'bovetz; G. E. KOS[OVD, A. N. Gorbovetz: p. 116. PI. 6, Figs. 6,7.

M a I e ria I : 7 well preserved specimens.

Dim ens ion s (in J.Un); height - 170- 180. maximum width - 5~58.

Des c

rip t ion.

Skeleton conical, elongate, widening towards the base, consisting of a

smail, rounded

capitulum

and 6 more segments of trapezoidal

shape with slightly convex sides. Incision

s between segments are more pronounced in the initial part. Wall with tiny perforation, basal orifice hardly discernible.

Rem ark s. The preservation of specimens from Poland does not allow for precise

description of the perforation pattern nor for confirmation of

the existence of a second layer of the wall, because the covering meshwork obscures deeper structures.

o c cur r e nee

.

Campanian of W Siberia. Poland: Lower Turonian of Wladysla- wowo IG I.

Family Stichocyrlidac Haeckel 1882

1885 Genus

Stichomitra Cayeux

1897

Type species Stichomitra coslala Cayeux

1897

Slichomitra communis Squinabol 1903 (PI. VI, Figs. 8, 11, 17)

1975 Stichomifra sp.; P. Dumitricn: p. 87-89. PI. 2, Fig. 21.

1982 Slichomitra COl1ll1ltfllis Squinabol; Y. Takctaoi: p. 54, PL 3, Fig. 9; PI. t I, Fig. 5.

19&6 Stichomifra cOl1ll1Ulnis Squinabol; W. Kuhnt e/ at.: p. 236, PI. 7w.

1987 Sliclwmilra communis Squioabo!; S. Goric!an: p. [86, PI. 3, Fig. 21.

1988 Slic/wmilra commullis Squioabol; V. S. Vishnevskaya: PI. 4, Fig. 6.

1993 Sticlwmilra communis Squinabol; M. B~k: p. 193, PI. 3, figs. t 1,12.

Mat e ria I : 3& well preserved specimens.

Dim e 0 s ion s (in ,.uo): height - 147-220, width - 50-75.

Des c rip t ion.

Skeleton conical, slender orslightly widened, consisting of7 to 10

segments of trapezoidal shape. In

some specimens the cephaJis bears

tiny

perforations. Postabdominal segments irregularly perforated -

both the pores and their nITangement are

irregular.

Lower Turonian ;ndiolarians 353

o ^c

^{C tJ}

^{r r e}

^{11 C}

e " Cosmopolitan species; Cenomanian

to

TuronJan of S Europe and NW Africa, Upper Cenomanian to lowermost Coniacian of Japan, and Albian to Turonian of Oman, Poland: Upper Albian

to

Lower Cenomanian of the Pieniny Klippen Belt (Carpathians), Lower Turonian ofWladyslawowo 101

M :1 t e ria 1 : 5 well preserved lipcclmens.

Stichomilra

sp,

A (PI. VI, Fig, 6)

D i ^In ens ion:; (in Il:n): heigh. - 148-170. maximum width -.~ 63-70.

Des c rip t ion, Skeletonconical,eiongate,CephalissmaJl,trapezoidaLAbdornen and posrabdominal segments, numbering 5 to 7, are trapezoidaL low and wide, divided by shallow incisions, Segments are wider!n the middle part Theskeleton hilS spongy structure, Rem ark

S '

Stichomitra sp, A from Wladyslawowo IG I differs from Stichomitra sp, from Lower Turonian of Leba IG 1 (H. G6rka, 1991) by having a smaller number of segments. It is most similar to aStichomitra sp. specimen from Cretaceous sediments of the Atlantic Ocean, illustrated by 1. Thurow (1988),

Dec u r r e nee. Poland: Lower Turonian of Wladyslawowo IG L

Stichomitra sp, B (PLVI,Figs.14, Jill

:vi ate r ill: 9 we!! preserved ~pe:cimens.

Dim e n,~ ion s (in tlm); height ~ 148-170, maximum width -

70.·85.

Rem ark s . Spedfic assignment of this form is difficult despite its abundance ln the studied materiaL Skeleton conical, with quite widened base, consists of poorly discernible, unperforated capitulum, trapezoidal thorax, and 5 to 6 postabdomin£ll segments, which are low" and widening towards the base, The ia<.;t segmenr is often smaHer than the other Ones.

The incisions between segments are only slightly marked at the periphery. In some specimens an oval orifice has been noted, Skeleton with spongy structure,

Dec u r r e nee: Poland; Lower TutOnian of Wtadyslawowo IG L

Genus Stichocapsa Haeckel 188] sensu Petrushevskaya, Koslova 1972 Type species Stichocapsa jaspidea RUst 1885

M n ( c r i n 1 : 7 weU preserved specimens,

Stichocapsa sp, (PI. VI, Figs, 3.4)

Dim ens i 0:1 S (ltlJA-rn) height-159-170, maximt:m widtn - SO-U5

354 Hnnnn G6rka

Des c rip t ion. Skeleton elongate, spindle-shaped, cephalis moreorless rounded.

Present are thorax, abdome n and postabdominal segments, of trapezoidal shape with slightly marked incisions. Skeleton spongy. The base slightly rounded, closed.

Rem ark s. The specimens described herein from Poland do not match any known species of Stichocapsa.

o c cur r en c e. Poland : Lower Turonian ofW!adysiawowo IG 1.

Family Theoperidae Haeckel 1881 emend. Riedel 1967 Genus Eucyrtidium Ehrenberg 1847

Type species Lithocampe acuminata Ehrenberg 1844

Eucyrtidium (?)matsumotoi Taketani 1982 (PI. VI, Fig.

9)

1982 Euc:yrtidiIJ.m (?)malsumoroiTaketani; Y. Tnketnni: p. 365, PI. 2, 3.

M a I e ria I : 2 well preserved specimens.

Dim e os ion s (injlm):height-160-175,maximumwidth-about60.

Des c rip t ion. Skeleton spindle-shaped, with unperforated capitUlum, e nding in a little spine. Thorax trapezoidal. 5 postabdominal segments relatively high and wide are widest at mid-height. Basal orifice not visible. Perforation irregular.

o c cur r e n c e . Turonian of Hokkaido (Japan). Poland: Lower Turonian of Wla-

dyslawowo IG

l.

Family Archaeodictyornitridae Pessagno 1976 Genus Dictyomitra Zittel 1876 emend. Pessagno 1976

Type species Dictyomitra multicostata Zittel 1876

M ^D. t e r i 11 I : I well preserved speeimen.

Dictyomitra sp.

(PI. VI, Fig. 15)

D i ^III ens ion s (in )J,m): height - 158. milXimum width - 68.

Des c rip t ion . Skeleton conical, elongate, with small, smooth cephalis and trapezoidal thorax. The other segments are lo w, growing bigger along the series. At the periphery, there are clearly noticeable incisions between segments. The last segment is

lower than the remaining ones and bears an oval orifice. The costae typical for this genus

are at places covered by an irregularly perforated meshwork.

Rem ark s . The specimen described herein resembles most closely a MiddleJurassic Dictyomitra sp. from the Baltic region (V. S. Vishnevskaya, 1988).

o c cur r e n c e . Poland: Lower Turonian of W!adys!awowo IG

l.

Lowcr Turonian rlldiQladans (Po}ycystina)."

- - -

Family Spongocapsulldae Pessagno 1977 a emend, Pessagno 1977 b Genus Obesacapsula 19770 emend, Pess.gno 1977b Type species Ohesacapsaia morroensis Pessagoo 1977a

Obesacapsula morroen-sis Pessagno 1977a

(pI. VI, Fig, 19)

1977a ObesacapsuJa morrae1!sis Pessngno; E. A, Pessng:lo: p. &7, PI. l j, Pigs. 5-8, [977b Obesacaps'.Ila morrOlttlsis Pessngno; E A. Pessagno; p. 53, PI. 11, Fig. 8, t984 Obesacapsula fnorroensis Pessagno; A. Schaaf: p 126-127.

M n

t

e ria I: 1Swell preserved ~pccimens,

Dime n Sl on s {inj1rnl height-19S-210,rnaximumwidth·--l12-118.

355

Des c rip t jon, Skeleton robust, consisting of 5 to 9 segments, the last of which is markedly swoHen and continues into a cylindrical tubular extension, The proximal part of the skeleton is conical frustum-shaped aod not perforated, The wall is thick und spongy, Rem ark s, Obesacapsula morroens!s Pessagno differs from o.

(?)rotunda (G.

J.

Hinde, 1902, PL I, Fig, 5) by having less pronounced

jnci~ions

between segments, reduced number of segments and the last segment being much higher than the others, The discovery of 0,

morroensisPessagno in Lower Turonian deposits ofWladyslawowo IG

1 exteods the known geographical range of the species,

o c cur reo c e. Valanginian and Lower Turonian of California, Poland: Lower Turonian ofWladyslawowo IG L

Ohesacapsuia cf, rotunda (Hinde 1902)

(PI. VI, Fig, 5)

Mat e r! a j : [ well preserved specimen.

Dim ens ion" (in !lm): hClght-146, maximum width·-68..

Rem ark s,

Obesacapsu/a

cf.

rotunda (Hinde) differs from the above described O.

morroensis Pessagno by haVIng more prominent incisions between segments, though Tess marked than in O. cf. rotunda (Hinde), and more numerous segments which grow slightly bigger in size along the series, In 0, cf. rotunda (Hinde) from Poland there is an inconspicu, ous tubu1ar structure.

o c c u [r e nee, Poland: Lower Turonian of Wladyslawowo 1G L

356 Hanna G6rka

Cyrtoidea inc.rtae sedis

Genus Protoslichocapsa Empson-Morin J 982

Type species Stichocapsa (?)stocki Campbell et Clark 1944 emend. Foreman 1968

Protostichocapsa stocki (Campbell et Clark, 1944) emend. Foreman 1968 (PI. VI, Figs. 13,20)

1944 Slichocapsa (?)srocki Campbell et Clark; A. S. Campbell, B. L. Clark: p. 44, PI. 8, Figs. 31-35.

1944 Slichocapsa megalocephala Campbell et Clark; A. S. Campbell, B. L. Clnrk: p. 44. PI. 8, Figs. 26,34.

1968 Amphipyndax stocki (Campbt:l1 ct Clark); H. Foreman: p. 78, PI. 8, Fig. 12a-c.

J 982 ProtoslichocGlp,fa slocki (Campbell et Clark); K. M. Empson-Morin: p. 516. PI. 4, Figs. 1-12.

1986 Amphipyl'Uku stocki (Campbell et Clnrk) vnr. B; V. S. YishnevskDya: p. 53, Pl. 6, Figs. 1-5.

1989 Prowslichocap.fa slocki (Campbell et Clark) emend. Forem:ln; H. GOrka: p. 343, PI. 14, Figs. 6, 7.

1991 Pr()foslichocapJ(l ,flock] (Campbell el Clark) emend. Foreman; H. GOrka: p. 44, PI. 2, Fig. 6.

1993 Amphipyndw: slOckj (Campbell et Clark); M. B'lk: p. 186, PI. 2. Figs. 8-10.

Mat e ria I : 30 well preservcd specimcns.

OJ ^In ens ion.~ (in 11m): height -146-170, maximum width-73-78.

Des c rip

t

ion

0

f s pee

j

men s a n d rem ark s : Protostichocapsa stocki (Campbell et Clark) displays Jarge variability of the size and degree of elongation of the skeleton. The specimens from W!adys!awowo IG 1 are always conical, and consist of 6 to 8 segments with poorly marked borders on periphery. They have been classified to this species on the basis of their rounded cephalis, lacking an apical spine divided internally into

2 sections. Trapezoidal thorax is poorly marked. Postabdominal segments grow success-

ively bigger. Sometimes the last segment is slightly higher. Basal orifice not always visible.

Perforations of irregular shape and size.

o c cur r e n c e. Cosmopolitan species from Albian to Campanian. Poland: Upper Albian to Lower Cenomanian of Pieniny Klippen Belt (Carpathians), Lower Turonian of Wladyslawowo IG

I.

Genus Pseudoeucyrtis Pessagno 1977b Type species Eucyrtis (?)zhamoidai Foreman 1973

Pseudoeucyrlis

sp.

(PL

VI, Fig. 7)

M a (e r i 0.1 : 1 well preserved specimen.

o

^{i In} ens ion s (in J.lm); height - 160. maximum width - about 50.

Des c rip t ion. Skeleton elongate, spindle-shaped. Cephal is small, rounded, lack - ing an apical spine (perhaps due to damage). The other 7 segments grow gradually higher.

They are widest in mid-length of the skeleton. Incisions between segments poorly marked.

Distal end truncated. Perforation irregularly spaced.

Lower Turonian radiolarians (Polycystina) .. 357

Rem ark s. This

Pseudoeucyrtis

sp. seems to be conspecific with the

Pseudoeu- cyrtis

sp. described from Hauterivian Grodziszcze Shales at Lipnik (H. Gorka, S. Geroch, 1989).

o c cur r e n c e. Poland: Hauterivian at Lipnik (Outer Carpathians), Lower Turo- nian of Wladyslawowo IG I.

Gen. et sp. indet.

(PI. VI, Figs. 12, 18,21)

Mat e ria I : 10 differently preserved specimens.

Dim ens ion s (in )lm): height - 157-202, maximum width - 70-11l.

Des c rip

t

ion. Skeleton elongate, robust, frustum-shaped, consisting of few

(5-7)

segments of trapezoidal shape with slightly convex sides. Borders between segments well marked. The size of segmentS grows towards the base, and they are widest around the middle of the skeleton's height (i.e., at the 2nd or 3rd postabdominal segment). Cephalis and thorax are indeterminable in the studied specimens. No apieaJ spine has been observed.

The skeleton has spongy structure, locally with finely granulate surface. Perforations of irregular shape and irregularly spaced. Basal orifice small, circular, often not visible.

Rem ark s . Despite large number of specimens, it is difficult to identify their generic and specific affinities, because the incompleteness of the first 2 segments in al1 of them.

The general shape of the skeleton, as well as the number and size of segments make them comparable to

Dictyomitra (?)nodosa

Koslova from the Campanian of the Eastern Cauca-

SllS,

although the illustrated holotype consists of only 5 segments and not of 8, as stated in the diagnosis. The cephalis is also obscured. Both forms have granulate tuberosities, but the perforation is different. In the species described herein, the pores are smooth and framed with an inflated surface. A size variability has been observed.

o c cur r e n c e . Poland: Lower Turonian of W!adyslawowo IG 1.

[nstylut Geologii Podstawowej Univ.crsytelu Warszawskiego Warszawa, aL Zwirki i Wigury 93 Received: 27.03.1995

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Translated by Karol Sabatlt

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PESSAGNO E. A. (l977b) - Lower Cretnceous Radiolnrian biostratigraphy of the Great Valley sequcnce and fmncisenn complex, California COilSt Ranges. Cushm. Found. Fornm. Re..~. Spec. Publ., 5, p. 1-87.

PETRUSHEVSKAYA M. G., KOSLOVA G. E. (1972) - Radiolaria: Leg 14, Deep Sea Drilling Project. In:

Initial Rep. DSDP, 14 of the cruise!' of the Drilling Vcs$el Glomar Challenger (cd. D. E. Haye..~), p. 495-648.

RENZ G. w, (1974) - Rildiolaria frOln Leg 27 of the Decp Sen Drilling Project, p. 769-841.

RIEDEL W. R. (1967) - Some new falOilic$ of Radiolnria. Geo!. Soc. London Proc., 1640, p. [48-[49.

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ROST D. (1885) - Beitrnge zur Kenntnis der fossilen Radiolarien IlU.<i Gesteinen des Jura. Palaeonrographien, 31, p. 269-321, nO. 3.

SCHAAF A. (1981) - J 2. Late early Cretileeous Radiolaria from Deep Sea Drilling Project Leg. 62. In: Initial Rep. Deep Sea Drilling Projcct (cds. J. Thiede ellJl.), 72, p. 4 I 9-470.

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75, p. 1-189.

SCHAAF A., THOMAS V. (1986) - Les RadioJairts campaJ1ien~ du Wadi Ragmi (nappe de Se11lail, Oman) un nouveau rcpere ehronologique de I'obduction olnanaise. C. R. Aead. Sc. ?nris. 303, p. 1593-1598. no. 2.

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lOS-ISO, no. 4.

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S' Gr.lvenhage.

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Mar. Micropalconl..ll. p. 139-149, no. 1-3.

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NewsofOsaka Micropaleont., Spec., 5, p. 383-398.

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360 Hanna G6rka

HannaG6RKA

RADiOLARlE DOLNOTURONSKlE (pOLYCYSTINA) Z OTWORU WIERTNICZEGO WLADYSLA WOWO IG 1 (REGION DALTYCKI)

Slreszczenie

Z pr6bek pobranych do badan mikropaleOnlologicznych Z olworu wiclTOiczego Wladyslawowo IG 1 szest stano wi material wyjlllkowo boguly w dobrze zachowane krzemionkowe szkieJeciki radiolarii (prolllienice).

Opraeowano 30 gatunk6w rodiolarij (Polycystina), W Lym 17 przedstawicieli SpumelJaria i 13 Nassellaria.

Na podslawie rodiolorii i lowarzysz::acych im Qlwomic planklonicznych, wiek badanych pr6bek okrdlono na wczesny turon. PonadLo przedstawiono historic badan mdiolarii kredowych w Polsce, przeprowadzono :lnatize biomeLcycznQ oraz wyci::agni<;;to wnioski ekoiogiczne, sugerujqc ie wyst<;;puj::ace otwomice planktoniczne, jak r6wniei:. radiolarie wskazujij nu otw;lt1e, plytkie i chtodnc morze.

PLATE I

Figs. I-II. Crucella cochensis Pessagno

Fig. "I - IGPUW-V-47, depth 124.00 In, x 410; Fig. 2 - IGPUW-V-82, depth 124.10 In, x 410; Fig. 3 - JGPUW-V-I05, depth 128.00 m, x 410; Fig. 4 -IGPUW-V-4, depth 114.00 m, x 410; Fig. 5 - IGPUW-V-20, deplh 114.00 m,x 275; Fig. 6 - IGPUW-V-99, depth 124.00m, x 420; Fig. 7 - JGPUW-V-6, depth 114.00 In,

x 410; Pig. 8 - IGPUW-V-27, depth 124.00 In, x 410; Fig. 9 -IGPUW-V-26, depth 124.00 m, x 410; Fig. 10 - JGPUW-V-25, depth 121.00 m, x 410; Fig. II - JGPUW-V-I07, depth 128.00 In, x 410

Fig. 12. Hisriastrum aster Lipman IGPUW-V-I04,depth 128.00m, x 380

Geo!. Quart., No.3, 1995 PLATE I

Hanna G6RKA -Lower Turonian radiolarians (Polycystina) from borehole Wladyslawowo IG I (Bailie region)

PLATEH

Fig. 1-3. HistiasrrumlatumLipman

Fig. 1 - tGPUW-V-50, depth 124.00 m, x 500; Fig. 2 [GPUW-V-U8, depfh 131.20 m, x 430; Fig. 3 - IGPUW-V-l29, depth 131.20 m, x.416

Fig. 4. Crucelll1 caCMfUis Pessagno IGPUW-V-6L depth 124.00 rn, x 390 Flg:L 5---11. Huria5trUftl as(er Lipman

Flg.5 JGPLW-V-23, depth 114.00

m,

x. 400: Fig. 6 - IGPUW·V-85, depth 124.70

m, x

375;

Phs.

7-- IGP'CW-V-44, depth 121.00 m, x 410; Fig. S - IGPUW-V-3, depth 114.00 rn, x 410: Pig. 9 .. ··· IGPUW- V-26.

depth 12LOOm, x 400; Fig. 10- [GPUW-V-32, depth 121 00 m, x 400; Fig. 11- IGPUWN-67, depth 124.00 m, >:400

GeoL Quart., No.3, 1995 PLATE II

Hanna G6RKA - LowerTuronian radiolarians (Polycystina) from borehole Wlndystawowo IG I (Baltic region)

PLAT5m Figs. 1-3,6-12. CavQspongiaanrdopensis Pessagno

Fig, 1 - JGPtiW-V-8, depth 114.00 m, x 410; Fig. :2 - fGPtiW-V-1S, depth 114.00 rn, " 430. 3 tGPUW-V-41, depth 121.00 Ill, x 450; Fig. {1 - lGPUW- V-69, depth 124.70 m, x 370, Fig. 7

depth 124.70 rn, x 430; Fig. 8 -fOPU\V-V-54, deptb 124.00 m, x 400; Fig. 9 -lGPLfW-V-87, depth 124,70 Jfi,

x 420; Fig_10-JGPt.:W-V-5, depth 128.00 m, x 400; Fig_ll-IOPUW-V-16, depth 114JlOm, x 400; f"tg. 12 - tUPUW-V-94, depth 124.70 m, x 420

Figs. 4, 5, 13,14. Cavaspungia &p.

Fig. 4 - [GPUW-Y-95, depth 124.00 m, x 435; Fig. 5 - IGPlW-V-49, depth t24.00 ^iIl, x 4.';0; F\g 13

IGPUW-V~125, depth 131.20 Ill, x 390; Fig. 14 -lGPUW-V-j 14, depth 131.20 m, x 430 Pig. 15. Gen. et sp. indet. A.

IGPUW-V-80, depth 124.70 m, x 360

GeoL Quart .. No.3, 1995 PLATE III

Hanna G6RKA-LowerTuronian radiolarians (Polycystina) from borehole Wtadyslawowo IG I (Baltic region)

PLATE IV Figs. 1·-4. Spongodiswsmuitus Koslova

Fig, i -~- [C;PUW~V-93, depth l24.70 m, x 420; Fjg. 2 TGPCW-V-13, depth 114,00 m, x 400; Fig, 3 ,.,- IGPUW·V·56, depth 124,00 m, x 420; Fig. 4 ·---lCPUW·V·45. depth 121 AJO m, x 445

Figs, 5,6. Hagil1,wum sp.

Fig. 5 fGPUW-V-9'l, deprh 124,00 tn, X 380; Fig, 6 iGPUW·V~28, depth 12LOO tn, :\420 Fig. 7 _ Cav(1spongiacaJ.i;Jomiensis Pessagno

IGPUW~ V~71, depth 124,7D m, x 380 Fig.?}, PeminastruntsubboNnae Lipman lGPUW-V40,depth 121.00m,x390

Figs. 9--11, P)'ramlspollgioglasc()ckensis Pessagno

Flg.9 IOPUW·V 37, depth 121,00 m, x 400; Fig. 10 IGPUW-V-38, depth 12LOO m, x 390; Fig. 11 IGPUW·V-43, deplh 12LOO m, x 430

Fig, 12, Gen. et sp. indcL B

IGPL'WMV~30, depth 121.00 m, x 406 Fig, 13. Gen. etsp. iude!. C

ICPUW -V ·34, deplh 12 1.00 m, x 390 FIg. 14. Cav(lspongiaante/opensis Pessagno rGPl:W~V-48, depth 124.00!U( x 4{}0

Geol. Quart" No.3, 1995 PLATE1V

Hanna G6RKA - LowerTuronian radiol<llians (Polycyslina) from borehole Wladyslawowo IG I (Bal(ic region)

Geol. Quart .• No.3, 1995 PLATE IV

Hanna G6RKA-LowerTuronian radiolarians (Polyeystina) from borehole W!ady.;!awowo fG 1 (Bailie regioo)

PLATE V PIgs" J, 2. Orbic£lU/orma va::aensis PesS0gno

Fig, 1 - IGPUWN-76, depth r';A70 m, x445; Fig. 2~ lGPUW-V~lO, depth 1l4,()() In, x 400 I--:'igs. 3, 5. 9. OrbicuUJonUfl reniUaeformis {Campbell N Clarki Pes:.agno

Fig. 3 H.::PUW~V-29, depth 121.00 m, x 430: Fig. 5 IGPUWN~55, depth l24.00 In, x 4{}O; Fig. 9 fGPLiW·V·59,d<:pth 124.00m,x415

Figs. 4, 6, 7. Orbkliliformaex gr. flWnticeiloe1His Pessagno

Fig:. 4 !GPUW-V-96, depth 124.70 IT!,., X 410; Fig:. 6 IGPUW.V~22, depth 114.00 Ill,.x 440; Fig. 7 - lGPUW·V·57, depth l24.00 In. x 420

Fig. 8, Orbii:uhfmma "p.

IGPUW-V-L2, depth 121.00 rIl, x 400

Geo!. Quart., No.3, 1995 PLATE V

Hanna G6RKA - Lower Turonian f:ldioJarians (Polycystinn) from borehole Wlady~tawowo IG I (Baltic region)

PLATE VI Figs, 1, 2, A.mpilipYlIdmmediocris (Tan Sin Hok)

Fig. i rOPUW-V-14, depth 114.00 m, x 410; Fig, 2 ---IGPUW-V·l8, depth 114,00 m, x 390 Figs. 3, 4, Sficilocapsa 51?

Fig.:' ~ IGPUW-V.j 19, depth !3L20m, x 410; Fig, 4 - IGPl:WN.68, depth 124JiO m, x 390 Fig. 5. Obe.mcaps!l-lacf. rownda (Hinde)

fGPUW-V-SJ, depth 124.00 ll1, x 450 Fig. 6, Srichomitra sp. A

IGPUW·V·19, depth 114.00 m, x 425 Fig, 7, Pseudoeucynissp,

IGPUW

.v··n,

depth 114,00 In, x 410

Figs, 8, 11, 17. Stichomi!ra commul'is Squinabol

Fig.

a ,.---

IGP1]W.V·31, depth 12LOO 11l, x 4()5; Fig. 11 -lGPlJW-V-2, depth 114.00 m, x 410; Fig, 17

KiPUW--V~24, depth 12LOO m, x 400 Fig. 9, Ew;:yrtidlUln

C't')

mafsutrl{,toi Takc!ani iGPUW· Y·39, depth 121,00 m., )\00406 Fig. 10. Amphipy!tdax ural/co (Gorbovctz) IGPUW-V-24, depth 121.00m, x 400 Figs, 12, 18,21. Gen, et r-p. indeL

Fig. 12 JGPUWN-78, depth ]24,70 m, x 400; Fig. 18 -IOPUW-V-64. de,pth 124,00 >0, x 415; Fig. 21 . IGPUW-V-103, depth 124,00 m, x 420

Figs, 13,20. Prows!ich!)CGpJastocki (Campbell el Clark) emend. Foremall

Fig. 13 IGPOW-V-66, depth 124.70 m, x 410; Fig, 20 .... ~ 1GPUW-V-74, depth 12/L70 tn, x: 430 Figs, 14, 16. Stichomifra sp, B

Fig. 14 IGPUW.v~58, depth 124,70 m, x425; Fig, t6 IGPUW-V-120, depth 131,20 m, x 410 fig, 15. Dictyumi!rf1 sp.

!GPtJW, V-7, depth 114,00 m, x 4JO Fig> 19, Obesacopsuta morroi'fl$i" Pessa.gno IGPl.:W-V-52, depth 124.00 m, x 400

Geol. Quart., No.3, 1995 PLATE VI

Hanna G6RKA~ LowerTuronian radiolarians (Polycystina) from borehole Wladyslawowo JG 1 (Ballic region)