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Hupehsuchus

Hupehsuchus is an extinct genus of small marine reptiles, about 1 m (3 ft) long, found in the area of Hubei in China.[1] This marine reptile lived in the Olenekian stage of the Early Triassic period.[2] It was probably a filter feeder, like modern baleen whales.[3]

Hupehsuchus
Temporal range: Early Triassic, Olenekian, Olenekian
Specimen WGSC 26004
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Hupehsuchia
Family: Hupehsuchidae
Genus: Hupehsuchus
Young, 1972
Type species
Hupehsuchus nanchangensis
Young, 1972
Life restoration of Hupehsuchus nanchangensis

Description edit

 
Specimen on display at the Paleozoological Museum of China

Hupehsuchus was similar to its close relative, Nanchangosaurus, but differed from it in a number of ways. For example, Hupehsuchus had heavier armor on its back than Nanchangosaurus, and its back spines were more finely divided, giving it a more crocodile-like appearance than Nanchangosaurus. It had a thin, long snout like a gharial, river dolphin, or ichthyosaur, which it probably used to snag fish or probe for aquatic invertebrates. A 2023 study suggests, on the basis of cranial anatomy paralleling that of baleen whales, that Hupehsuchus could have been a filter feeder.[3]

Classification edit

Exactly to what species Hupehsuchus is related is unknown. Fairly clearly, it shares a close relationship with Nanchangosaurus, but other relations are unknown. Many features, including the discovery of polydactyly, suggest that Hupehsuchus is related to the ichthyosaurs, but the fact that Hupehsuchus' extra digits include more bones in the hand, rather than just the fingers as in the ichthyosaurs, may discredit that theory. It, along with Nanchangosaurus, seems to be so different from any other reptile that a new order has been constructed for the two genera called Hupehsuchia.

References edit

  1. ^ Li, Qiang; Liu, Jun (2020). "An Early Triassic sauropterygian and associated fauna from South China provide insights into Triassic ecosystem health". Communications Biology. 3 (1). 63. doi:10.1038/s42003-020-0778-7. PMC 7012838. PMID 32047220.
  2. ^ Chen, X. H.; Motani, R.; Cheng, L.; Jiang, D. Y.; Rieppel, O. (2014). "A Carapace-Like Bony 'Body Tube' in an Early Triassic Marine Reptile and the Onset of Marine Tetrapod Predation". PLOS ONE. 9 (4): e94396. Bibcode:2014PLoSO...994396C. doi:10.1371/journal.pone.0094396. PMC 3981804. PMID 24718682.
  3. ^ a b Fang, Zi-Chen (8 August 2023). "First filter feeding in the Early Triassic: cranial morphological convergence between Hupehsuchus and baleen whales". BMC Ecology and Evolution. 23 (36): 36. doi:10.1186/s12862-023-02143-9. ISSN 2730-7182. PMC 10408079. PMID 37550649.
  • Chinese Fossil Vertebrates by Spencer G. Lucas
  • The World Encyclopedia of Dinosaurs and Prehistoric Creatures by Dougal Dixon


hupehsuchus, extinct, genus, small, marine, reptiles, about, long, found, area, hubei, china, this, marine, reptile, lived, olenekian, stage, early, triassic, period, probably, filter, feeder, like, modern, baleen, whales, temporal, range, early, triassic, ole. Hupehsuchus is an extinct genus of small marine reptiles about 1 m 3 ft long found in the area of Hubei in China 1 This marine reptile lived in the Olenekian stage of the Early Triassic period 2 It was probably a filter feeder like modern baleen whales 3 HupehsuchusTemporal range Early Triassic Olenekian Olenekian PreꞒ Ꞓ O S D C P T J K Pg N Specimen WGSC 26004Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaOrder HupehsuchiaFamily HupehsuchidaeGenus HupehsuchusYoung 1972Type species Hupehsuchus nanchangensisYoung 1972Life restoration of Hupehsuchus nanchangensisDescription edit nbsp Specimen on display at the Paleozoological Museum of ChinaHupehsuchus was similar to its close relative Nanchangosaurus but differed from it in a number of ways For example Hupehsuchus had heavier armor on its back than Nanchangosaurus and its back spines were more finely divided giving it a more crocodile like appearance than Nanchangosaurus It had a thin long snout like a gharial river dolphin or ichthyosaur which it probably used to snag fish or probe for aquatic invertebrates A 2023 study suggests on the basis of cranial anatomy paralleling that of baleen whales that Hupehsuchus could have been a filter feeder 3 Classification editExactly to what species Hupehsuchus is related is unknown Fairly clearly it shares a close relationship with Nanchangosaurus but other relations are unknown Many features including the discovery of polydactyly suggest that Hupehsuchus is related to the ichthyosaurs but the fact that Hupehsuchus extra digits include more bones in the hand rather than just the fingers as in the ichthyosaurs may discredit that theory It along with Nanchangosaurus seems to be so different from any other reptile that a new order has been constructed for the two genera called Hupehsuchia References edit Li Qiang Liu Jun 2020 An Early Triassic sauropterygian and associated fauna from South China provide insights into Triassic ecosystem health Communications Biology 3 1 63 doi 10 1038 s42003 020 0778 7 PMC 7012838 PMID 32047220 Chen X H Motani R Cheng L Jiang D Y Rieppel O 2014 A Carapace Like Bony Body Tube in an Early Triassic Marine Reptile and the Onset of Marine Tetrapod Predation PLOS ONE 9 4 e94396 Bibcode 2014PLoSO 994396C doi 10 1371 journal pone 0094396 PMC 3981804 PMID 24718682 a b Fang Zi Chen 8 August 2023 First filter feeding in the Early Triassic cranial morphological convergence between Hupehsuchus and baleen whales BMC Ecology and Evolution 23 36 36 doi 10 1186 s12862 023 02143 9 ISSN 2730 7182 PMC 10408079 PMID 37550649 Chinese Fossil Vertebrates by Spencer G Lucas The World Encyclopedia of Dinosaurs and Prehistoric Creatures by Dougal Dixon nbsp Paleontology portal nbsp This article about a Triassic reptile is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Hupehsuchus amp oldid 1188049569, wikipedia, wiki, book, books, library,

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