Craspeditidae (Ammonoidea) of the Russian Platform at the Jurassic–Cretaceous Boundary. I. Genus Praesurites Mesezhnikov et Alekseev
- Authors: Mitta V.V.1,2
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Affiliations:
- Borissiak Paleontological Institute, Russian Academy of Sciences
- Cherepovets State University
- Issue: Vol 53, No 5 (2019)
- Pages: 471-481
- Section: Article
- URL: https://journals.rcsi.science/0031-0301/article/view/168629
- DOI: https://doi.org/10.1134/S0031030119050101
- ID: 168629
Cite item
Abstract
The type species of the genus Praesurites,P. elegans Mesezhnikov et Alekseev, was described from the basal Berriasian of the Subpolar Urals (Sosva River basin). Finds of species of this genus in other regions are of importance for the interregional correlation of the Jurassic–Cretaceous boundary interval. The taxonomic composition and stratigraphic distribution of the Central Russian species of the genus Praesurites from the Volgian–Ryazanian boundary interval (the top of Craspedites nodiger Zone–Riasanites rjasanensis Zone) are revised. The revised diagnosis of the genus Praesurites and redescriptions of P. tryptychus (Nikitin), P. unshensis (Nikitin) (including P. nikitini Gerasimov et Mitta, as a junior subjective synonym) and P. craspeditoides (Girmounski) are presented.
About the authors
V. V. Mitta
Borissiak Paleontological Institute, Russian Academy of Sciences; Cherepovets State University
Author for correspondence.
Email: mitta@paleo.ru
Russian Federation, Moscow, 117647; Cherepovets, 162600