Dicoelitid belemnites from the Caucasian margin of the Tethys: new data from the Upper Bajocian-Lower Bathonian of Karachay-Cherkessia, southwest Russia

被引：3

作者：

Dzyuba, Oksana S. ^{[1
]}

Mitta, Vasily V. ^{[2
,3
]}

Sherstyukov, Mikhail P. ^{[4
]}

机构：

[1] Russian Acad Sci, Trofimuk Inst Petr Geol & Geophys, Siberian Branch, Academician Koptyug 3, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Borissiak Paleontol Inst, Profsoyunznaya 123, Moscow 117647, Russia

[3] Cherepovets State Univ, Lunacharskogo 5, Cherepovets 162600, Russia

[4] North Caucasus Fed Univ, Inst Oil & Gas, Kulakova 16-1, Stavropol 355029, Russia

来源：

BULLETIN OF GEOSCIENCES | 2019年 / 94卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

Dicoelitidae; Middle Jurassic; Bajocian; Bathonian; Northern Caucasus; western Tethys; palaeobiogeography; EARLY JURASSIC BELEMNITES; BOLSHOI ZELENCHUK RIVER; PARKINSONI ZONE; SOUTHERN PARTS; AMMONOIDEA; BIOSTRATIGRAPHY; MIDDLE; STEPHANOCERATIDAE; CYLINDROTEUTHIDIDAE; MEGATEUTHIDIDAE;

D O I：

10.3140/bull.geosci.1758

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Early representatives of the belemnite family Dicoelitidae (Belemnopseina) from the Northern Caucasus are reported from the Upper Member of the Djangura Formation of Karachay-Cherkessia. We document the first records of Dicoelites (s. str.) from the Upper Bajocian of Eastern Europe and introduce the new species Dicoelites aprilis Dzyuba sp. nov. and Dicoelites octobris Dzyuba sp. nov. Additionally, Conodicoelites sp. from the Upper Bajocian as well as a new record of Conodicoelites exiguus (Krimholz, 1953) from the Lower Bathonian are described. New belemnite records from Karachay-Cherkessia indicate the successive appearance of dicoelitid genera in the Caucasian margin of the Tethys during the Late Bajocian, i.e. Dicoelites in the late Niortense Chron and Conodicoelites in the early Garantiana Chron. Our data provide evidence supporting the presence of Dicoelites in the Bajocian deposits of the western Tethyan domain that was previously considered doubtful.

引用

页码：409 / 424

页数：16

共 7 条

[1] On New Records of Cephalopod Jaws from the Upper Bajocian (Middle Jurassic) of the Northern Caucasus (Russia, Karachay-Cherkessia)
A. A. Mironenko
V. V. Mitta
Paleontological Journal, 2020, 54 : 477 - 486
[2] On New Records of Cephalopod Jaws from the Upper Bajocian (Middle Jurassic) of the Northern Caucasus (Russia, Karachay-Cherkessia)
Mironenko, A. A.
Mitta, V. V.
PALEONTOLOGICAL JOURNAL, 2020, 54 (05) : 477 - 486
[3] The Genus Cadomites (Ammonoidea: Stephanoceratidae) from the Upper Bajocian-Lower Bathonian (Middle Jurassic) of the Kuban River Basin (Northern Caucasus, Russia)
Mitta, V. V.
PALEONTOLOGICAL JOURNAL, 2022, 56 (06) : 620 - 629
[4] New belemnites (Megateuthididae, Cylindroteuthididae) from the Bajocian and Bathonian of the Yuryung-Tumus Peninsula, northern Siberia, Russia and their palaeobiogeographic implications
Dzyuba, Oksana S.
de Lagausie, Benoit
PALZ, 2018, 92 (01) : 87 - 105
[5] New belemnites (Megateuthididae, Cylindroteuthididae) from the Bajocian and Bathonian of the Yuryung-Tumus Peninsula, northern Siberia, Russia and their palaeobiogeographic implications
Oksana S. Dzyuba
Benoît de Lagausie
PalZ, 2018, 92 : 87 - 105
[6] Biostratigraphy of the Bajocian-Bathonian boundary interval in northern Siberia: new data on belemnites from the Yuryung-Tumus peninsula
de Lagausie, Benoit
Dzyuba, Oksana S.
BULLETIN DE LA SOCIETE GEOLOGIQUE DE FRANCE, 2017, 188 (1-2):
[7] The Genus Cadomites (Ammonoidea: Stephanoceratidae) from the Upper Bajocian–Lower Bathonian (Middle Jurassic) of the Kuban River Basin (Northern Caucasus, Russia)
V. V. Mitta
Paleontological Journal, 2022, 56 : 620 - 629

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