Maomingosuchus

<i>Maomingosuchus</i>

Maomingosuchus

Extinct genus of reptiles

Maomingosuchus is an extinct genus of gavialoid crocodylian from Late Eocene of Southeast Asia. It was discovered in Priabonian-aged deposits of China and possibly also Thailand.[2] The type species, originally Tomistoma petrolica, was named in 1958[3] and was redescribed as Maomingosuchus in 2017.[4] A second species, Maomingosuchus acutirostris, was described in 2022 from middle-upper Eocence deposits (late Bartonian–Priabonian age, 39–35 Ma) of the Na Duong Basin in northern Vietnam.[5] It is proposed to be a basal member of Gavialoidea,[1] or alternatively within the family Tomistominae.[5] It was a relatively small gavialoid with an estimated total length of 3–3.5 metres (9.8–11.5 ft).[6][4]

Skull, Tianjin Natural History Museum

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References

  1. [1]
    Rio, Jonathan P.; Mannion, Philip D. (6 September 2021). "Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem". PeerJ. 9: e12094. doi:10.7717/peerj.12094. PMC 8428266. PMID 34567843.
  2. [2]
    Martin, Jeremy E.; Lauprasert, Komsorn; Tong, Haiyan; Suteethorn, Varavudh; Buffetaut, Eric (2019). "An Eocene tomistomine from peninsular Thailand". Annales de Paléontologie. 105 (3): 245–253. doi:10.1016/j.annpal.2019.03.002.
  3. [3]
    H.-K. Yeh. (1958). A new crocodile from Maoming, Kwangtung. Vertebrata PalAsiatica 2(4):237-242
  4. [4]
    Hsi-Yin Shan; Xiao-Chun Wu; Yen-Nien Cheng; Tamaki Sato (2017). "Maomingosuchus petrolica, a restudy of "Tomistoma" petrolica Yeh, 1958". Palaeoworld. 26 (4): 672–690. doi:10.1016/j.palwor.2017.03.006.
  5. [5]
    Massonne T, Augustin FJ, Matzke AT, Weber E, Böhme M (2022). "A new species of Maomingosuchus from the Eocene of the Na Duong Basin (northern Vietnam) sheds new light on the phylogenetic relationship of tomistomine crocodylians and their dispersal from Europe to Asia". Journal of Systematic Palaeontology. 19 (22): 1551–1585. doi:10.1080/14772019.2022.2054372. S2CID 248909844.
  6. [6]
    Iijima, M.; Kubo, T. (2020). "Vertebrae-Based Body Length Estimation in Crocodylians and Its Implication for Sexual Maturity and the Maximum Sizes". Integrative Organismal Biology. 2 (1). obaa042. doi:10.1093/iob/obaa042. PMC 7891683.


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