A5074160744- Paleontology and Evolutionary Biology
- Ichthyology and Marine Biology
- Fish biology, ecology, and behavior
- Evolution and Paleontology Studies
- Marine and environmental studies
- Geological Studies and Exploration
- Geotechnical and Geomechanical Engineering
Ryazan State University
2021-2023
Upper Cretaceous coastal marine deposits are widespread in the Southern Urals with a number of vertebrates previously reported from this region. However, previous studies on vertebrate faunas region often lack detailed taxonomic descriptions and illustrations, rendering comparisons to other faunal assemblages difficult. A new diverse assemblage comprising cartilaginous bony fishes, as well reptiles, is described here Orenburg near Akkermanovka (Southern Urals, Russia). Thirty five taxa...
Isolated teeth belonging to the genus Ptychodus Agassiz, 1834 (Chondrichthyes; Elasmobranchii) from Upper Cretaceous of Ryazan and Moscow Oblast regions (European Russia) are described discussed in detail herein. The taxonomic composition assemblage region is very diverse including first records cuspidate species P. altior anonymus, which thus largely consistent with those other contemporaneous European localities. ubiquitously inhabited epicontinental seas Europe during most assemblages...
During the Cenomanian–Turonian transition (~94 Ma), what is today Central Russia formed part of northern epicontinental margin Tethys Ocean. Diverse marine vertebrate faunas inhabited these palaeoenvironments, but their fossils are incompletely documented. Here, we report discovery reptile remains, recovered together with pterosaur, chondrichthyan, and actinopterygian fish material from a basal-most glauconitic sand gravel layer Dmitrov Formation. These strata exposed in an active quarry...