Microsuchus

From Wikipedia, the free encyclopedia

Microsuchus Temporal range: Santonian ~85.8–84.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Clade:	†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

[edit]

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

[edit]

^ Mook, C. C. (1934). "The evolution and classification of the crocodilia". The Journal of Geology. 42 (3): 295–304. Bibcode:1934JG.....42..295M. doi:10.1086/624165. S2CID 128568052.
^ 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. Bibcode:1998Pbio...24..470M. doi:10.1017/S009483730002011X. JSTOR 2401182.
^ Saez, M. D. d. (1928). "Un nuevo goniofolido Argentino". Anales de la Sociedad Cientifica Argentina, Buenos Aires. 105: 287–290.
^ 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. Bibcode:2015CrRes..52..153L. doi:10.1016/j.cretres.2014.09.007. hdl:11336/124599.
^ 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

[edit]

Microsuchus in the Paleobiology Database

Ziphosuchia

Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Order: Mesoeucrocodylia
Clade: Metasuchia

Pseudosuchia

see Pseudosuchia
Ziphosuchia	see below↓

Ziphosuchia

Microsuchus?

Sebecia

Mahajangasuchidae

Kaprosuchus
Mahajangasuchus

Sebecidae

Peirosauridae

Amargasuchus Fortignathus? Miadanasuchus Stolokrosuchus?
Pepesuchinae	Barreirosuchus Caririsuchus Epoidesuchus Itasuchus Pepesuchus Roxochampsa
Peirosaurinae	Antaeusuchus Barcinosuchus Barrosasuchus Bayomesasuchus Colhuehuapisuchus Gasparinisuchus Hamadasuchus Kinesuchus Lomasuchus Montealtosuchus Patagosuchus Peirosaurus Pepesuchus Rukwasuchus Uberabasuchus

Notosuchia	see below↓

Notosuchia

Anatosuchus? Araripesuchus Comahuesuchus? Libycosuchus Razanandrongobe? Simosuchus Uruguaysuchus
Candidodontidae?	Candidodon Lavocatchampsa Malawisuchus Pakasuchus

Xenodontosuchia

Baurusuchia

Baurusuchidae

Cynodontosuchus Gondwanasuchus Pabwehshi
Baurusuchinae	Aphaurosuchus Aplestosuchus Baurusuchus Stratiotosuchus
Pissarrachampsinae	Campinasuchus Pissarrachampsa Wargosuchus

Sphagesauria

Notosuchidae

Sphagesauridae

Adamantinasuchus Labidiosuchus Yacarerani
Sphagesaurinae	Armadillosuchus Caryonosuchus Sphagesaurus
Caipirasuchinae	Caipirasuchus Morrinhosuchus

Related categories
Terrestrial crocodylomorphs

This article about a prehistoric archosaur is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Microsuchus&oldid=1258219729"

Categories:

Hidden categories: