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Pentacemylus progressus

Mammalia - Homacodontidae

Taxonomy
Pentacemylus progressus was named by Peterson (1932) [genotype]. Its type specimen is CM 11865, a set of teeth (Upper molars M^ and M^ and lower teeth, including Mi, M2, and part of P4), and it is a 3D body fossil. Its type locality is Leota Ranch, which is in an Uintan terrestrial horizon in the Uinta Formation of Utah. It is the type species of Pentacemylus.

Synonymy list
YearName and author
1932Pentacemylus progressus Peterson p. 72 fig. 9
1955Pentacemylus progressus Gazin
2007Pentacemylus progressus Theodor et al. p. 53

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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
subclassSynapsida
Therapsida()
infraorderCynodontia()
RankNameAuthor
Mammaliamorpha
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
superfamilyDichobunoideaGill 1872
familyHomacodontidaeMarsh 1849
genusPentacemylus
speciesprogressus

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.

Pentacemylus progressus Peterson 1932
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: herbivoreg
Reproduction: viviparoussubc
Created: 2005-08-31 14:17:11
Modified: 2005-09-02 12:03:14
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Stucky 1998, Nowak 1999, Carroll 1988, Hendy et al. 2009, Lillegraven 1979

Age range: Uintan or 46.20000 to 39.70000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Uintan46.2 - 39.7USA (Utah) Pentacemylus progressus (type locality: 16594 16607)