New Ammonoids from the Devonian–Carboniferous Boundary Beds in Berchogur (Western Kazakhstan)

Old and new ammonoid collections from the Devonian–Carboniferous Boundary Section in Berchogur (Western Kazakhstan) are examined. The ammonoids come from the Acutimitoceras Genozone, from beds similar in age to the Stockum Fauna of Germany. The assemblage includes mostly species of the genera ? Imit...

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Bibliographic Details
Published in:	Paleontological journal Vol. 54; no. 5; pp. 464 - 476
Main Author:	Nikolaeva, S. V.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-09-2020 Springer Springer Nature B.V
Subjects:	Carboniferous Collections Devonian Earth and Environmental Science Earth Sciences New species Paleontology Kazakhstan ammonoids Devonian–Carboniferous Boundary Kazakhstan Berchogur
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Summary:	Old and new ammonoid collections from the Devonian–Carboniferous Boundary Section in Berchogur (Western Kazakhstan) are examined. The ammonoids come from the Acutimitoceras Genozone, from beds similar in age to the Stockum Fauna of Germany. The assemblage includes mostly species of the genera ? Imitoceras and Acutimitoceras , with diverse shapes of initial whorls. The new species Acutimitoceras alabasense sp. nov. and A. dzhanganense sp. nov. are described.
ISSN:	0031-0301 1555-6174
DOI:	10.1134/S003103012005010X