Biology:Microsuchus
| Microsuchus | |
|---|---|
Scientific classification 
| |
| Missing taxonomy template (fix): | Archosauria/Reptilia |
| Clade: | Pseudosuchia |
| Clade: | Crocodylomorpha |
| Clade: | Crocodyliformes |
| Suborder: | †Notosuchia |
| Genus: | †Microsuchus De Saez, 1928 |
| Type species | |
| †Microsuchus schilleri De Saez, 1928
| |
Microsuchus is an extinct genus of mesoeucrocodylians, belonging to Notosuchia.[1] Fossils have been found in the Bajo de la Carpa Formation, dating to the Santonian stage of the Late Cretaceous.[2]
Classification
Originally classified as a goniopholidid on the basis of the platycoelous vertebral centra,[3] Microsuchus was recently redescribed and recovered as either a neosuchian or notosuchian. Diagnostic features include the presence of a bulge lateral to the prezygapophyses of the second sacral vertebra, elongated posterior zeugopodia, and proximal caudal centra with a triangular cross section.[4] A 2017 cladistic analysis of Razanandrongobe further clarified the phylogenetic position of Microsuchus by recovering it as a primitive notosuchian.[5]
References
- ↑ Mook, C. C. (1934). "The evolution and classification of the crocodilia". The Journal of Geology 42 (3): 295–304. doi:10.1086/624165. Bibcode: 1934JG.....42..295M.
- ↑ Markwick, P. J. (1998). "Crocodilian diversity in space and time: The role of climate in paleoecology and its implication for understanding K/T extinctions". Paleobiology 24 (4): 470–497. doi:10.1017/S009483730002011X.
- ↑ Saez, M. D. d. (1928). "Un nuevo goniofolido Argentino". Anales de la Sociedad Cientifica Argentina, Buenos Aires 105: 287–290. http://biostor.org/reference/161124.
- ↑ Leardi, Juan Martín; Fiorelli, Lucas E.; Gasparini, Zulma (2015). "Redescription and reevaluation of the taxonomical status of Microsuchus schilleri (Crocodyliformes: Mesoeucrocodylia) from the Upper Cretaceous of Neuquén, Argentina". Cretaceous Research 52: 153–166. doi:10.1016/j.cretres.2014.09.007.
- ↑ Dal Sasso C, Pasini G, Fleury G, Maganuco S. (2017) Razanandrongobe sakalavae, a gigantic mesoeucrocodylian from the Middle Jurassic of Madagascar, is the oldest known notosuchian. PeerJ 5:e3481 https://doi.org/10.7717/peerj.3481
External links
- Microsuchus in the Paleobiology Database
Wikidata ☰ Q6840364 entry
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