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Brachyuranochampsa

Extinct genus of reptiles

Summary

Extinct genus of reptiles

  • B. eversolei Zangerl, 1944 (type)

Brachyuranochampsa is an extinct genus of crocodilian.

The only robust occurrence of Brachyuranochampsa is B. eversolei from the Middle Eocene of Wyoming. Another species, B. zangerli from the lower Bridger Formation at Grizzly Buttes, has been synonymized with another primitive crocodilian, "Crocodylus" affinis, also known from the Bridger Formation.

Phylogenetic studies have consistently recovered Brachyuranochampsa as more basal than the crown group Crocodylidae, which consists of all extant (living) crocodiles.

The below cladogram from a 2018 study combining morphological data and molecular DNA evidence shows the placement of Brachyuranochampsa within Crocodylia.

References

References

  1. Zangerl, R. (1944). ''Brachyuranochampsa eversolei'', gen. et sp. nov., a new crocodilian from the Washakie beds of Wyoming. ''Annals of Carnegie Museum'', '''30''':77-84
  2. Brochu, C. A.. (1997). "Morphology, fossils, divergence timing, and the phylogenetic relationships of Gavialis". [[Systematic Biology]].
  3. Brochu, C. A.. (2000). "Phylogenetic relationships and divergence timing of ''Crocodylus'' based on morphology and the fossil record". [[Copeia]].
  4. (2012). "A giant crocodile from the Plio-Pleistocene of Kenya, the phylogenetic relationships of Neogene African crocodylines, and the antiquity of ''Crocodylus'' in Africa". [[Journal of Vertebrate Paleontology]].
  5. Michael S. Y. Lee. (27 June 2018). "Tip-dating and homoplasy: reconciling the shallow molecular divergences of modern gharials with their long fossil". [[Proceedings of the Royal Society B]].
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

crocodilia late-cretaceous-crocodylomorphs-of-north-america paleocene-crocodylomorphs late-cretaceous-reptiles-of-north-america eocene-crocodylomorphs prehistoric-pseudosuchian-genera
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