Original paper
Records of Enchodus (Teleostei, Aulopiformes) from the Cenomanian of Ukraine in the light of European distribution of enchodontid fishes
Kovalchuk, Oleksandr; Barkaszi, Zoltán; Anfimova, Galina
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 303 Heft 3 (2022), p. 295 - 307
75 references
published: Mar 31, 2022
manuscript accepted: Feb 14, 2022
manuscript received: Jan 31, 2022
ArtNo. ESP155030303003, Price: 29.00 €
Abstract
Enchodontidae is a family of extinct aulopiform fishes that mainly existed in the Late Cretaceous. Representatives of this diverse group were widely distributed in temperate coastal environments. New records of Enchodus from the Cenomanian of Ukraine are reported, and earlier finds are considered in regard to their taxonomic attribution and geographic distribution. The new records of Enchodus from Kyiv and Malyn are represented by jaw teeth of at least four morphotypes that differ in size and shape of the crown, in the development of cutting edges and sculpture of the outer surface. Considering the high intraspecific variability of jaw teeth, the significant overlap of diagnostic tooth-based characters between different species and other circumstances, the studied material is identified as Enchodus sp. The species Enchodus maximoviczii and E. kioviensis described by A.S. Rogovich in 1870 as new to science based on materials from Kaniv and Kyiv are considered nomina dubia. The earlier attribution of some of the Ukrainian specimens to E. lewesiensis is regarded dubious. Implications for palaeobiogeography and palaeoecology are discussed in the light of European records of Enchodus.
Keywords
Enchodontidae • teeth • taxonomy • palaeobiogeography • Late Cretaceous • Europe