Rivista Italiana di Paleontologia e Stratigrafia rrrorne 4ì9-444 Drcembre 1999

NOTA BREVE - SHORT NOTE

A NE\T MULTIDISCUS ? SPECIES (FORAMINIFERA)
FROM A FUSULINACEAN-RICH SUCCESSION ENCOMPASSING

THE CARBONIFEROUS-PERMIAN BOUNDARY IN THE HADIM NAPPE
(CENTRAL TAURUS, TURKEY)

CENGIZ OKUYUCU

Received Nooember 1 1, 1998; accepted June 3A, 1999

Key-uords: M uhidiscus ?, Fusulinacean, Carboniferous-Permi-
an Boundary, Biostratigraphy, Hadim Nappe, Turkey.

Riassunto. In questo articolo vengono studiati gli stratì ricchi in
fusulinidi intorno al limite Carbonifero-Permiano, provenienti dalla
sezione di Qatalkatran Tepe, falda di Hadim, nei Taundi centrali. La
comparsa di Sphaeroschwagerina sp. vtene vrllizzar^ per definire il lim-
ite Carbonifero/Permiano in questa sezione. La presenza dt Psewdo-
fusulina ? bwzuluh.ensis Dobrokhotova, Pseudofusulina paruiflucta
Zhou, Ps eudofus ulina hot unensls Davydov, O ccidentoscbzr;agerìna (7)
konaensis Echlakov e di Rugosofusulina stabilis Rauzer-Chernousova
conferma l'età Asseliana della oarte superiore della sezionc.

Abs*act. The Hadim Nappe Carboniferous-Permian boundary
and its fusulinacean-rich strata from the Qatalkatran Tepe stratigraph-
ic section were studied.

The appearance of Spbaeroschuagerina sp. determines the Car-
boniferous-Permian boundary in this section. The presence of Pseudo-

fusulina ? buzulwhensis Dobrokhotova, Pseudofusulina paruiJ'lucta
Zhoq Pseudofusulina horunensls Darydov, Occidentoschuagerina (?)
kosvaensìs Echlakov and Rwgosofusulìna stabilis Rauzer-Chernousova
confirm the Asselian age.

A new Multidiscas ? species, Mubidiscws 7 tauridiana n. sp. was
discovered from the Early Permian (Asselian) of Turkey (Hadim
Nappe, Central Taurus).

lntroduction.

The study area is located in the southwestern part
of Sariveliler (Karaman) in the Central Taurus region
(Fig. t). This area belongs to the Hadim Nappe that was
described as an allochthonous tectonic unit to the south
of Hadim by Blumenthal (1944,1951). GùvenE (1965,
1969, 1974) studied different sections extensively and
described a rich microfauna and microflora of Visean,
Bashkirian, Moscovian, Kasimovian, Gzhelian, and Early
and Late Permian deposits. Subsequently, Ózgul (1976,
1984) studied the structural geology of the Hadim

Nappe. The last biostratigraphic studies of this region
were carried out by Góktepe (1996), Okuyucu (1997),
and Okuyucu and Gùven E 0997).

The Carbonif erous-Permian boundary (C-P
boundary) of the Hadim Nappe is represented mainly
by quartzitic sandstones with iron oxide concrerions
and a very shallow marine limestone with very special
facies known a"s Gin)anella limestone (Gúveng, 1991).
The Pseud.oschwagerina zone of the Asselian is repre-
sented by the Girz,,anella lime stone (GùvenE, 1.965, L977
b), composed of algae, fusulinids and fragmenrs of fos-
sils (brachiopods, echinoids, ostracods erc.).

The C-P boundary beds that are rich in fusuli-
naceans s/ere investigated and a new Muhidiscus ?
species, Mwhidiscus 7 tauridiana n. sp. was described
from Early Permian deposits of the Qatalkatran Tepe
stratigraphic section.

Stratigraphy.

TL^ rr^l:'- NT^^pe contains carbonate and clastic
deposits from the Late Devonian to Lare Creraceous.
The Late Carboniferous and Early Permian srrata include
a well-known Giroanella limestone facies (Fig. 1) .

Gúveng (1977 b,1980) examined the different sec-
tions of the Hadim Nappe and divided the Late Car-
boniferous and Early Permian strata into two forma-
tions, Gavuralani and Dikmentepe, respectively (Fig. 1).
Only the lower levels of the Gavurala Formation were
investigated. The levels studied begin with red, more or
less sandy limestones. The upper levels are rich in iron
oxide and characterized by Girz,anella limestone. The
Upper Carboniferous age is indicated by the exisrence
of Gin,anella sp., Globioalpwlina bamensis Reitlinger,

- Maden Tetkik ve Arama Genel Mùdúrlùgù, Jeoloji Etútler Dairesi 06520 Sogiitcizti, Ankara, Turkey. E-maii: okuyucr:@mta.govtr



C. Okuyucu

Location and geological map
of the strLdv rre,r.rnd (.,rrlk-
.rt rrn Tcpe strrtigrrphic .cc-
r10 n.

Globiotah,ulina sp. A, and
Ammoaertella sp. (Platr 2).

Biostratigraphy.

Ruzhentsev ( 1950) devel-
oped a scheme for the C-P
boundary interval utrlizing
ammonoid evolutionary stages
and established four successrve
stratigraphic units. Later,
Ruzhentsev (1952) correlated
these stages with fusulinid data
from Rauzer-Cl-rernousova and
Rozovskaya. In 1954, Ruzhent-
sev placed the lower boundary
of the Permian sysrem at the
base of the Asselian stage and
accepted the Sphaeroschwageri-
na z, u lgaris - Sp h aero s chraagerina
fusifòrmis zone as the base of
the Asselian (Bogoslovskaya et
al., lq95). The recently àccepr-
ed definition of the C-P bound-
ary at Aidaralash Creek (D"rry-
dov er rl.. 1995) ;pproxim:rtes
the horizon proposed by
Ruzhentser' (19 52). Chuvashov
et al., (1986, 199A,1993) also
accepted Ruzh-entsev's defini-
tion (the brrse of Asselian
begins with the first appearance
ol Sphaeroschzaagcrtna genus).
In this study, the aurhor accepts
Ruzhentsev's (195a) Asselian
definrtion (Fig. Z).

Gùveng (1965) deter-
Tetrataxis minwta Morozova, lrleotuberitina maljavkini mined the Kasimovian stage of the Upper Carbonifer-
Mikhailov, Quasifusulina sp., Ozawainella sp., Schu- ous based on rhe presence of Quasifwsulinoides sp.,
bertella obscura (Lee & Chen), and Schubertella obscura Schubertella sp., Fusiella sp., Pseudofusulina sp., and the
procera Rauzer-Chernousova (Plate 2) . Gzhelian stage by the presence of Daixina sp., Pseudo-

The lower levels of the Dikmentepe Formation fusulina sp. and Schubertella sp. GúvenE (1965) suggesr-
characterized by the Girvanella limestone and a red ed that the conglomerate and sandstone beds represent
limestone were studied. The Asselian age is demonstrat- the upper part of the Gzhelian, and the Asselian may be
ed by the presence of Sphaeroscbzaagerina sp., Occiden- marked by an unconformity. Later, Gùveng (1965,1977
toschwagerina (?) bosaaensls Echlakov, Psewd.ofusulina ? b) defined the Girvanella lirnestone as Asselian or equiv-
buzwlukensis Dobrokhotova, Pseudofuswlina hoounensis alent to the Pseudoschraagerina horizon in the Góksu
Davydov, Rwgosofusulina stabilis Rauzer-Chernousova, valleysection.
Rugosofusulina stabilis longa Rauzer-Chernousova, Trit- In this study, fossils of Gzhelian age are repre-
icites aff. pan)us Chen, Hemigordius sp., Mwltidiscus ? sented by Giroanella sp., Epimastopora sp., Garooodia
tauridiana n. sp., Tetrataxis parviconica Lee & Chen, sp., Eotuberitina reitlingerae Miklukho-Macklay, Tetrata-

t-r:iîl
EI=T{TI

CÌaysy
Ginànàlla
limestone

rtlttl

fi , --i
Quartzitic
sanosrone

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Covered
interval

tTr]
ffi

Limestone

fr-Tî5Tl

Ginanella
limestone

-

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Clavey
llmesrone

tr



à

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a

rt

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Foramini l-e Fusulinacean Argae

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-;Èi=èsùÍyi liiii i3i
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Sss;ÈssÀÈÈìiÈiÉeÈÈi

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130

129
t28
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126
t25
124
r23
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121

12C

119

118

117

116

I 15

tl4
113

,,;4, 
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xis minuta Morozova, Tetrataxis hemisphaerica elongata
Morozova, Tetrataxis plana Morozova, Tetrataxls sp. A
and B, Bouhonia zuillsi Lee, Quasifusulina sp. A, and
Qwasrfusulina sp. B. Asselian fossils are represented by
Sphaeroschwagerina sp., Occidentoschruagerina (?) kos-
'uaensis Echlakov, Triticites schuageriniformis Kauzer-
Clrernousova, Triticites afÎ. paruus Chen. Triticires sp.,
Pseudofwsulina I bwzulukensis Dobrokhotova, Pseud,o-
fw s u lin a p ail en s i s fergan en s ls Dutkiev rt ch, P s e u d ofus w lin a
hoztunensis Davydov, Pseudofuswlina. ex gr. ellipsoides
Grozdilova, Pseudofusulina mikhai/ovi Leven, Pseudo-

fusulina saratoztensis. Chernova, Psewdofusulina sp. A,
Rwgosofusulina stabilis Rauzer-Chernousova, Rugoso-

fusulina stabilis longa Rauzer-Chernousova, Hemigor-
diws sp., Multtdiscws ? tawridiana n. sp.,Ammodiscus sp.,
Palaeonubecularia sp., and Glomospira sp. (Fig.2).

In the Qatalkatran Tepe section, Sphaeroschwagert-
na, Boultonia, Schubertella, Psewdofusulina and Quasi-
fusuLtna are found together. The C-P boundar,v is char-

441

Fusulinrcern, .rlgre, end
'mrll [orrrninr[er di.rribu-
tion of Qatalkatran Tepe
'rrrrigrephrc secrion irIter
Okuyucu .rnd Gúvenc. 1997.
modified).

-^*^-:-^l I-,..L^ ^-^^arance ofurl Lrr! <ryyrr
Sphaeroschzuagcrina sp. in sam-
ple 113 (Fig. t).

Systematic paleontology

The systematics of the
qenrr\ .ìre in,lccordrnce with
Loeblich & Tappan (1988).

Foraminifera incertae sedis

Genus Mwhidiscus

A. D. Miklukho-Maklay, 1953

Type species: Nummwlostegina pddan-
gensls Lanee, 1925

Multidiscus ? tauridiana n. sp.

Plate 1, fig.1a-g

Origin of name: It is named
after the'Ìàurus Mounteins.

Holotype: Plate I., Fig. 1a,
Deposited et MTA cat. n. CO-130-3.

Locality: Qerelkrrr.rn lcpc
region, NW of Sarìveliler (coordinatcs:
Y 54100, and X: 5207s, Alanya 028-cl
tluadrangle).

Material: Approximately 20 specimens.
Assemblage: Multidiscus 7 tauridiana n. sp., Hemigordiws sp.,

G lobio alr ulina sp., Eotuberitina reitlingerae Mrklukho-Maclay, Ear
landia sp., Tuberitina sp., Arnmodiscur sp., Geinitzina sp.,
Palaeonubecularia sp., Ammooertella sp., Glomospìra sp., and
Nodosaria sp.

Description. Test discoidal, involute with the
exception of the final whorl that coils evolute. Periphery
broadly rounded, lateral surfaces slightly convex. Coil-
ing of the tubular chamber rn the rnitral whorls planispi-
ral, sometimes the outer t\\ro or three whorls deflected
in relation to each other at a small angle not exceeding
5'. Lumina of the whorls high and height in the final
whorls ranging from 100 to 133pr. Ratio of width to
diameter ranging from 0.41 to 0.43:1. Diameter of the
form 733-800p and width 300-333p. Number of whorls
six to eight. Proloculus spherical, 33pi in diarneter. W:rll
calcareous, imperforate, porcelaneous with thickness in
the final whorl ranging from 13 to 17y,t,.

A nezp Mubidiscus? species from the Carboniferows/Permian boundar

Ftg.2



442 C. Ohuyucu

Comparison.' The type of coiling of the tubular
chamber in the initial whorls, the enlargemenr and evo-
lute coiling of the last chamber are rhe main characteris-
tics of Muhidiscus ? tauridiana n. sp. It can be easily dis-
tinguished from many Hemigordius species based on
these features.

Multidiscws ? tauridiana n. sp. shows close simi-
larity with the Mwltidiscus padangensis group in the
planispiral coiling of the tubular chamber in the initial
whorls and general shape of the test, but differs in the
planispiral evolute last whorl which is the main distin-
guishing characteristic of Multidiscus ? tauricliana n.
sp.

The general outline of rhe test of this form closely
resembles Hemigordiws gur.,enci Altiner from the Late
Permian (Djulfian) of Taurus (Tlrrkey). Muhid,iscus ? tau-
ridrana n. sp. shows a planispiral coiling from the initial
whorls to the last stage of the test (sometimes the outer

two or three whorls are deflected at a small angle). In
Hemigordius guaenci Altiner, there is an important
deflection in the initial whorls of the tesr. The forrner is
also distinguished from the latter by having larger dimen-
sions, less convex lateral surfaces, a wider last whorl and
a smaller V/D (ratio of N'idth to diameter; the present
form has a V/D of O.+t-0.+::1 compared to 0.48-0.58:1
for Hemigordius guoenci Altiner) .

Hemigordiws longws Grozdiiova appears similar to
Mwltidiscus ? tauridiana n. sp. and has an involute and
laterally compressed tesr. The tubular chamber is coiled
in one plane and exhibirs a slight deflection in the early
whorls. On the other hand, coiling in Multidiscus ? tau-
rirliana n. sp. is planispiral involute in the early whorls
and the last whorl is coiled evolute. Althoush the initial
chamber ol Hemì:gortlius lonyus Grozdiloìa is lerger
than in Muhidiscus ? tauridiana n. sp.. rhe other dimen-
sions are smaller.

ba

PLAI'L I

MultìrJiscwsTtauridianan.sp.,Holotype;a-axialsection,(130-3),x75,Paratypcs;b-neariyaxialsection(130-5),x82,c-subarialsection(130-
5),x/8,d-axialsection(130-6),x86,e-subequatorialsection(130-6),x65,cnlargementoflastwhorlseencleerly,I-detai.lofholotl'pe,(130-
3), x 80, planispiral coiling of tubular chamber in initial whorls and beginning of slight deflection in last r.horls. Original photos were takcn es
':.cdr: fiie directly by photo-microscope and plates were made by compurer.



A neut Muhidiscusl species from tbe Carboniferous/Permian boi+nd.ary 443

Hemigorclius oaa.tus Grozdilova is one of the
species similar to Mubidiscws ? tawridiana n. sp. and 1t
can be distinguished by having a streptospiral coiling
(instead of planispiral) in the initial whorls, and larger
total dimensions.

Remarks. Multidiscus ? tawridiana n. sp. is assigned
tentatively to the genus Mubidiscus due to the planispi-
ral evolute coiled iast whorl. Howéver, other features,
i.e. planispiral involute coiled inner part, porcelaneous
wall and general shape of the test, display a close simi-
larity to this genus.

Occurrence and Age. Qatalkatran Tepe region,
Hadim Nappe (Góktepe-Karaman,Turkey), sample 130,
Early Permian, Asselian.

Conclusion.

Late Carboniferous and Early Permian deposits in
the Qatalkatran Tepe stratigraphic secrion of the Hadim
Nappe were studied. Muhidiscus ? tauridiana n. sp. was
discor.ered and described.

Acbnouledgements.

I rm greerly rndebred to Prof. Dr. Demir Altiner (M.E.T.U.)
and Dr. Daniel Vachard (Lille) for rheir constant support, helpful
advice, and discussions. I thank Prof. E. Leven ( Moscow) for review-
ing an earlierversion of the papeq Prof. Dr. Tuncer Gùveng (Hacette-
pe University), Kagan Tekin (M.T.A.) and Kemal Erdoan (M.T.A.) for
helpful advice. I wish to thank also T. Sùkrù Yurtsever (M.T.A.) who
assisted me while preparing the drawings.

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*Y" s*

,*i."'

i,l

PLATI,2

BoultoniauillsiSEE,axialsection(110-1)x7A,2-Quasifusulinasp.A,axialsection(i11-2) x20,3- Pseud.ofusulinaìbuzululeensis Dobrokho-
tov:r, axial section (121-5) x 17,4 - Rugosofwswlina stabilis Rauzer-Chernoussova, axial section (119-15) x 18, 5 - Triticites a[[. pan,us Chen, arial
section (118-23a) x 38, 6 - Occirlentoscbuagerina (l) kosoaensis Echlakov, axial section (117-1) x 73,7 - Sphaerosclru^agerina sp. nearly axial section
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