Work

Stephanoceras humphriesianum (Ammonoidea), an Index Species of the Lower Bajocian, in the Basin of the Kuban River (Northern Caucasus, Russia)

Year: 2024

Type: article

Abstract: The paper discusses Stephanoceras humphriesianum (J. de C. Sowerby), an index species of the upper zone of the Lower Bajocian (Middle Jurassic) standard scale, for the first time identified from the lower subformation of the Djangura Formation of Karachay-Cherkessia. The fixation of the lectotype of Ammonites humphriesianus is discussed. New finds make it possible to establish the humphriesianum faunal horizon in the middle part of the eponymous zone for Kuban River basin.

Source: Палеонтологический журнал

DOI: 10.31857/s0031031x24030055

Author: V. V. Mitta

Institutions: Russian Academy of Sciences, Institute of Paleontology A A Borisyak, Cherepovets State University

Language: English

Topic: Paleontology and Stratigraphy of Fossils

Subfield: Paleontology

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4405287205

FWCI:

Cites: 3

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Related to: 10