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Parapsephurus is an extinct genus of paddlefish in the family Polyodontidae. Currently the only known species in this genus is the type species, Parapsephurus willybemisi.P. willybemisi is known a nearly complete specimen from the Tanis locality of the Hell Creek Formation in North Dakota, USA, which dates to the late Maastrichtian stage of the Late Cretaceous, approximately 66 million years ago.[1]
The name Parapsephurus refers to the similarities between the short gill arches of this genus and the more recently extinct paddlefish Psephurus, also known as the Chinese paddlefish. The type species, P. willybemisi, is named in honor of William E. Bemis, a professor of ecology and evolutionary biology and curator of fishes at Cornell University,[2] who has conducted extensive research on paddlefish.[1]
The rostrum of the holotype specimen is around 35 centimetres (14 in) in length, with a total body length of around 160.5 centimetres (5.27 ft). The species is placed in the clade Polyodonti, which includes all polyodontids other than the most primitive genus Protopsephurus. Like Psephurus and other extinct paddlefish genera, the genus was likely piscivorous, feeding on fish, rather than planktivorous like Polyodon.[1]
Referencesedit
^ abcHilton, Eric J.; During, Melanie A. D.; Grande, Lance; Ahlberg, Per E. (2023-04-11). "New paddlefishes (Acipenseriformes, Polyodontidae) from the Late Cretaceous Tanis Site of the Hell Creek Formation in North Dakota, USA". Journal of Paleontology: 1–18. doi:10.1017/jpa.2023.19. ISSN 0022-3360.
^"William Bemis | Department of Ecology and Evolutionary Biology". ecologyandevolution.cornell.edu. Retrieved 2023-05-05.
parapsephurus, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, please, help, improve, this, article, introducing, citations, additional, sources, find, sources, news, newspapers, books, scholar, jstor, 2023, e. This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Parapsephurus news newspapers books scholar JSTOR May 2023 Parapsephurus is an extinct genus of paddlefish in the family Polyodontidae Currently the only known species in this genus is the type species Parapsephurus willybemisi P willybemisi is known a nearly complete specimen from the Tanis locality of the Hell Creek Formation in North Dakota USA which dates to the late Maastrichtian stage of the Late Cretaceous approximately 66 million years ago 1 ParapsephurusTemporal range Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N Cast of the holotype Liberty Science Center Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Acipenseriformes Family Polyodontidae Genus ParapsephurusHilton et al 2023 Type species Parapsephurus willybemisiHilton et al 2023 The name Parapsephurus refers to the similarities between the short gill arches of this genus and the more recently extinct paddlefish Psephurus also known as the Chinese paddlefish The type species P willybemisi is named in honor of William E Bemis a professor of ecology and evolutionary biology and curator of fishes at Cornell University 2 who has conducted extensive research on paddlefish 1 The rostrum of the holotype specimen is around 35 centimetres 14 in in length with a total body length of around 160 5 centimetres 5 27 ft The species is placed in the clade Polyodonti which includes all polyodontids other than the most primitive genus Protopsephurus Like Psephurus and other extinct paddlefish genera the genus was likely piscivorous feeding on fish rather than planktivorous like Polyodon 1 References edit a b c Hilton Eric J During Melanie A D Grande Lance Ahlberg Per E 2023 04 11 New paddlefishes Acipenseriformes Polyodontidae from the Late Cretaceous Tanis Site of the Hell Creek Formation in North Dakota USA Journal of Paleontology 1 18 doi 10 1017 jpa 2023 19 ISSN 0022 3360 William Bemis Department of Ecology and Evolutionary Biology ecologyandevolution cornell edu Retrieved 2023 05 05 nbsp This order Acipenseriformes Sturgeon and Paddlefish related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Parapsephurus amp oldid 1185133508, wikipedia, wiki, book, books, library,
