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Peramus tenuirostris

Mammalia -

Taxonomy
Peramus tenuirostris was named by Owen (1871). Its type specimen is BMNH 47742, a mandible (left mandible), and it is a 3D body fossil. Its type locality is Mammal Bed, Durlston Bay (DB83), which is in a Berriasian marine horizon in the Lulworth Formation of the United Kingdom. It is the type species of Peramus.

Synonymy list
YearName and author
1871Peramus tenuirostris Owen
1928Peramus tenuirostris Simpson p. 121 figs. pl. 8, figs 2-6
2004Peramus tenuirostris Kielan-Jaworowska et al. pp. 380, 402-404
2012Peramus tenuirostris Davis p. 793 figs. Figures 2, 3A–B, 4

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes(Rowe 1988)
Trechnotheria
Cladotheria
Zatheria
genusPeramus
speciestenuirostris

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.

Diagnosis
ReferenceDiagnosis
B. M. Davis 2012Differs from Peramus dubius comb. nov. in larger size, greater relative depth of dentary, alveoli for p4 substantially larger than p3 and strong decreasing trend in molar size distally.