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Eocaiman palaeocenicus

Reptilia

Taxonomy
Eocaiman palaeocenicus was named by Bona (2007). Its type specimen is MPEF-PV 1933, a mandible (Nearly complete left mandible and partial right mandible), and it is a 3D body fossil. Its type locality is El Gauchito, which is in a Danian terrestrial horizon in the Salamanca Formation of Argentina.

Synonymy list
YearName and author
2007Eocaiman palaeocenicus Bona
2013Eocaiman palaeocenicus Pinheiro et al.
2020Eocaiman palaeocenicus Godoy et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
—Pseudosuchia(Zittel 1890)
—SuchiaKrebs 1974
—Paracrocodylomorpha
—Loricata(Merrem 1820)
—Crocodylomorpha()
—Solidocrania
suborderCrocodyliformes
—MesoeucrocodyliaWhetstone and Whybrow 1983
—NeosuchiaClark 1988
suborderEusuchiaHuxley 1875
—Crocodylia(Owen 1842)
—Alligatoroidea(Gray 1844)
—Globidonta
genusEocaiman
speciespalaeocenicus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

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Diagnosis
ReferenceDiagnosis
P. Bona 2007It differs from E. cavernensis in having: a robust lower jaw; external and internal margins of the dentary anteriorly divergent between alveoli 4º and 12º in dorsal view, an external mandibular fenestra with a rounded posterior border and the angular lower than the surangular (posteriorly to the external mandibular fenestra in lateral view).