Late Bashkirian ammonoids from the Mospyne Formation of the Donets Basin, Ukraine

Abstract

Eleven late Bashkirian ammonoid taxa (Anthracoceratites sp., Cymoceras sp., Melvilloceras rotaii (Librovitch in Popov, 1979), Gastrioceras angustum Patteisky, 1964, G. lupinum Popov, 1979, G. kutejnikovense Popov, 1979, ?Agastrioceras sp., Bisatoceras sp., ?Owenoceras sp., Branneroceras sp. A, and Branneroceras sp. B), are described from the Mospyne Formation of the Donets Basin, eastern Ukraine. Representatives of the genera Cymoceras, Agastrioceras, Bisatoceras are first recorded from the Carboniferous of the Donets Basin. Early Westphalian (G2 ammonoid zone, Langsettian) ammonoids Gastrioceras listeri, G. angustum and Branneroceras spp. indicate the attribution of the Mospyne Formation to the Gastrioceras-Branneroceras Genozone.

New Geological and Palaeontological Data of the Dyakove Group (Carboniferous) and Age-Related Rock Formations of the Central Donets Basin, Ukraine

“…(see Fig. 5, b) and some unidentified ammonoids, as well as the trace fossils Planolites and Chondrites (Dernov, 2016(Dernov, , 2022b.…”

“…In the study area (upper reaches of the Velyka Kamianka river), the upper boundary is located in the stratigraphic interval corresponding to the lower half of the coal-bearing Mospyne Formation (early late Bashkirian) (Dernov, 2022b). This area is characterised by rapid lateral replacement of the Dyakove Group in the northern and northwestern directions by the coal-bearing Amvrosiyivka, Mandrykyne and Mospyne formations (see Fig.…”

“…) (Dernov, 2021b and unpublished data of the first author), ammonoids (Melvilloceras rotaii (Librovitch in Popov, 1979), Gastrioceras angustum Patteisky, 1964, Branneroceras sp.) (Dernov, 2022b), crinoids, trilobites Ditomopyge (Carniphillipsia) kumpani (Weber, 1933), and fishes Listracanthus hystrix Newberry & Worthen, 1870 (see Fig. 11, c), Lagarodus, etc.…”

Palaeoecological significance of the trace fossil Circulichnis Vyalov, 1971 from the Carboniferous of the Donets Basin, Ukraine

“…The Mospyne Formation corresponds to the lower part of the Zuyivkian Horizon (lower half of the Kayalian Regional Stage) of the Regional Stratigraphic Scheme of the Dnipro-Donets Downwarp (Poletaev et al, 2011;Nemyrovska & Yefimenko, 2013). This formation contains remains of typical Langsettian terrestrial plants (Novik, 1974;Dernov & Udovychenko, 2019a) and ammonoids (Popov, 1979;Dernov, 2022b), the non-marine bivalves of the upper part of the lenisulcata Zone and the lower part of the communis Zone (Dernov, 2022a), the late Bashkirian conodonts (Nemyrovska, 1999), and other marine and terrestrial biota, such as miospores, foraminifers, corals, bryozoans, brachiopods, scaphopods, gastropods, horseshoe crabs, millipedes, insects and fishes.…”

Horseshoe crab trace fossils Arborichnus Romano et Meléndez, 1985 from the Bashkirian (Carboniferous) of the Donets Basin, Ukraine

“…Rocks of the Mospyne Formation contain remains of typical Langsettian terrestrial plants (Novik 1974, Dernov andUdovychenko 2019, etc. ) and ammonoids (Popov 1979, Dernov 2022c), non-marine bivalves of the upper part of the lenisulcata Zone and lower part of the communis Zone (Dernov 2022b), late Bashkirian conodonts (Nemyrovska 1999), and other marine and terrestrial biota, e.g., miospores, foraminifers, corals, bryozoans, brachiopods, scaphopods, gastropods, trilobites, horseshoe crabs, millipedes, insects, and fishes.…”