Callibrachion

Callibrachion; Temporal range: Early Permian, 299–296.4 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	†Caseasauria
Family:	†Caseidae
Genus:	†Callibrachion; Boule and Glangeaud, 1893
Species
	†C. gaudryi Boule and Glangeaud, 1893 (type);

Callibrachion is an extinct genus of caseasaur. It was at least 1.5 metres (5 ft) in length. It lived during the Early Permian.

Discovery and history[]

Restoration

Skeleton

It was originally described in 1893 on a basis of a specimen Early Permian deposits in northeastern France.^[1] It was later considered a synonym of Haptodus by several authors, but subsequent examination has found it be a caseid rather a sphenacodont.^[2] This was confirmed by cladistic analysis, which recovered Callibrachion as a basal caseid^[3]

References[]

^ Boule M., Glangeaud P. (1893). "Le Callibrachion, nouveau reptile du Permien d'Autun". Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences. 117 (19): 646–648.
^ Frederik Spindler, Jocelyn Falconnet, and Jörg Fröbisch (2015). "Callibrachion and Datheosaurus, two historical and previously mistaken basal caseasaurian synapsids from Europe". Acta Palaeontologica Polonica. 61. doi:10.4202/app.00221.2015.CS1 maint: uses authors parameter (link)
^ Neil Brocklehurst, Robert Reisz, Vincent Fernandez, and Jörg Fröbisch (2016). "A Re-Description of 'Mycterosaurus' smithae, an Early Permian Eothyridid, and Its Impact on the Phylogeny of Pelycosaurian-Grade Synapsids". PLOS ONE. 11 (6): e0156810. Bibcode:2016PLoSO..1156810B. doi:10.1371/journal.pone.0156810. PMC 4917111. PMID 27333277.CS1 maint: uses authors parameter (link)

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[1] Boule M., Glangeaud P. (1893). "Le Callibrachion, nouveau reptile du Permien d'Autun". Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences. 117 (19): 646–648.

[2] Frederik Spindler, Jocelyn Falconnet, and Jörg Fröbisch (2015). "Callibrachion and Datheosaurus, two historical and previously mistaken basal caseasaurian synapsids from Europe". Acta Palaeontologica Polonica. 61. doi:10.4202/app.00221.2015.CS1 maint: uses authors parameter (link)

[3] Neil Brocklehurst, Robert Reisz, Vincent Fernandez, and Jörg Fröbisch (2016). "A Re-Description of 'Mycterosaurus' smithae, an Early Permian Eothyridid, and Its Impact on the Phylogeny of Pelycosaurian-Grade Synapsids". PLOS ONE. 11 (6): e0156810. Bibcode:2016PLoSO..1156810B. doi:10.1371/journal.pone.0156810. PMC 4917111. PMID 27333277.CS1 maint: uses authors parameter (link)

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