Biology:Neosuchia
Neosuchia is a clade within Mesoeucrocodylia that includes all modern extant crocodilians and their closest fossil relatives.[1] It is defined as the most inclusive clade containing all crocodylomorphs more closely related to Crocodylus niloticus (the Nile Crocodile) than to Notosuchus terrestris.[2] Members of Neosuchia generally share a crocodilian-like bodyform adapted to freshwater aquatic life, as opposed to the terrestrial habits of more basal crocodylomorph groups.[3] The earliest neosuchian is suggested to be the Early Jurassic Calsoyasuchus, which lived during the Sinemurian and Pliensbachian stages in North America. It is often identified as a member of Goniopholididae,[4] though this is disputed, and the taxon may lie outside Neosuchia, which places the earliest records of the group in the Middle Jurassic.[3]
Characteristics
Members of Neosuchia have a wide diversity of skull shapes. Several groups convergently evolved elongate gharial-like skulls, which makes determining phylogenetic relationships of these taxa problematic.[5]
Phylogeny
Cladogram from Groh et al. 2022:[6]
| Neosuchia |
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References
- ↑ Wilson, J. A.; Malkani, M. S.; Gingerich, P. D. (2001). "New crocodyliform (Reptilia, Mesoeucrocodylia) from the Upper Cretaceous Pab Formation of Vitakri, Balochistan (Pakistan)". Contributions from the Museum of Paleontology, University of Michigan 30 (12): 321–336. http://deepblue.lib.umich.edu/bitstream/2027.42/48662/2/ID529.pdf. Retrieved 2009-11-02.
- ↑ Larsson, H. C. E.; Sidor, C. A.; Gado, B.; Gado, B (2001). "The giant crocodyliform Sarcosuchus from the Cretaceous of Africa". Science 294 (5546): 1516–1519. doi:10.1126/science.1066521. PMID 11679634. Bibcode: 2001Sci...294.1516S. http://iris.nyit.edu/nycom/Faculty/Profiles/Sidor/Sarcosuchus.pdf. Retrieved 2009-11-02.
- ↑ 3.0 3.1 Wilberg, Eric W.; Turner, Alan H.; Brochu, Christopher A. (2019-01-24). "Evolutionary structure and timing of major habitat shifts in Crocodylomorpha" (in en). Scientific Reports 9 (1): 514. doi:10.1038/s41598-018-36795-1. ISSN 2045-2322. PMID 30679529. Bibcode: 2019NatSR...9..514W.
- ↑ Tykoski, R. S.; Rowe, T. B.; Ketcham, R. A.; Colbert, M. W. (2002). "Calsoyasuchus valliceps, a new crocodyliform from the Early Jurassic Kayenta Formation of Arizona". Journal of Vertebrate Paleontology 22 (3): 593–611. doi:10.1671/0272-4634(2002)022[0593:CVANCF2.0.CO;2]. http://digimorph.org/specimens/Calsoyasuchusvalliceps/calsoyas.pdf. Retrieved 2009-11-02.
- ↑ Groh, Sebastian S; Upchurch, Paul; Barrett, Paul M; Day, Julia J (2019-10-19). "The phylogenetic relationships of neosuchian crocodiles and their implications for the convergent evolution of the longirostrine condition" (in en). Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlz117. ISSN 0024-4082.
- ↑ Groh, Sebastian S.; Upchurch, Paul; Barrett, Paul M.; Day, Julia J. (March 2022). Benson, Roger. ed. "How to date a crocodile: estimation of neosuchian clade ages and a comparison of four time-scaling methods" (in en). Palaeontology 65 (2). doi:10.1111/pala.12589. ISSN 0031-0239. Bibcode: 2022Palgy..6512589G. https://onlinelibrary.wiley.com/doi/10.1111/pala.12589.
External links
- Neosuchia in the Paleobiology Database
Template:Pseudosuchia Template:Neosuchia Wikidata ☰ Q3042061 entry
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