New Data on Dinosaurs in the Late Cretaceous Sediments of the Southern Urals

Fossil marine vertebrates (Chondrichthyes, Actinopterygii, Reptilia) from the Upper Cretaceous of Akkermanovka (Orenburg Oblast, Southern Urals, Russia)

“…Although no index fossils were found within the layers of the Akkermanovka locality (see Geological setting), a Late Cretaceous age (possibly Santonian–Campanian) as reported from other localities in the Orenburg Oblast ( Efimov et al, 2016 ; Averianov et al, 2021a , b , 2022 ; Skutschas et al, 2022 ) is very likely, especially when considering the diverse fish assemblage described in this study (see “Biostratigraphic implications” below). Among the lamniform sharks in this assemblage, teeth of Squalicorax kaupi were the most abundant fossil remains (31.14% of all chondrichthyan taxa), followed by Archaeolamna ex gr.…”

“…and pterosaurs (Azhdarchidae indet.) are reported ( Averianov et al, 2021a , b , 2022 ; Skutschas et al, 2022 ). A preliminary account of the Cretaceous elasmobranchs from this locality was provided in the form of a conference abstract by Los (2021) , however this author did not provide any descriptions or illustrations of the listed species.…”