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Arretotherium meridionale

Mammalia - Anthracotheriidae

Taxonomy
Arretotherium meridionale was named by Rincon et al. (2013). Its type specimen is UF 244187, a mandible (juvenile left dentary with associated deciduous canine, partially erupted c1, p1, dp2–dp4, m1–m2, and associated right i1–i2 and mandibular symphysis), and it is a 3D body fossil.

Synonymy list
YearName and author
2013Arretotherium meridionale Rincon et al. p. 424 figs. 4-6

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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()
—Whippomorpha
superfamilyHippopotamoideaGray 1821
familyAnthracotheriidaeLeidy 1869
genusArretotherium
speciesmeridionale

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.

†Arretotherium meridionale Rincon et al. 2013
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Diagnosis
ReferenceDiagnosis
A. F. Rincon et al. 2013Differs from all other species of Arretotherium in having overall larger size, two lower incisors, lower molars with prehypocristid never reaching postprotocristid, more apical junc- tion between postprotocristid and postmetacristid, mesiolingual entocristid transversely notching preentocrisitid, and transverse valley lingually tapered by prehypocristid. Further differs from A. acridens in having incisors with stronger and more cylindrical roots and an upper canine with a serrated anterior edge pinched into a carina. Further differs from A. fricki in having a deeper and more robust jaw, and more sloping mandibular symphysis. Further differs from A. leptodus in having a more laterally compressed upper canine.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: grazerg
Reproduction: viviparoussubc
Created: 2005-08-31 14:33:30
Modified: 2005-09-02 12:04:33
Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum
References: Kron and Manning 1998, Hendy et al. 2009, Lillegraven 1979, Nowak 1999, Carroll 1988

Age range: Arikareean or 29.50000 to 18.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Arikareean29.5 - 18.5Panama (Panama) Arretotherium meridionale (152378)