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Polydolops thomasi

Mammalia - Polydolopidae

Taxonomy
Polydolops thomasi was named by Ameghino (1897). Its type specimen is MACN 10338, a maxilla, and it is a 3D body fossil. Its type locality is Barranca south of Lago Colhue-Huapi, Gran Barranca, which is in a Bartonian terrestrial claystone in the Sarmiento Formation of Argentina. It is the type species of Polydolops.

Synonyms
Synonymy list
YearName and author
1897Polydolops thomasi Ameghino p. 497
1902Polydolops fur Ameghino p. 39
1904Polydolops simplex Ameghino p. 107
1904Orthodolops sciurinus Ameghino p. 108
1948Polydolops thomasi Simpson
1948Polydolops thomasi mara Simpson
1948Polydolops thomasi paahi Simpson
1948Polydolops thomasi thomasi Simpson
1982Polydolops thomasi Marshall

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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
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
suborderPolydolopimorphiaArcher 1984
familyPolydolopidae
genusPolydolops
speciesthomasi

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.

†Polydolops thomasi Ameghino 1897
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Invalid names: Orthodolops sciurinus Ameghino 1904 [synonym], Polydolops fur Ameghino 1902 [synonym], Polydolops simplex Ameghino 1904 [synonym], Polydolops thomasi mara Simpson 1948 [synonym], Polydolops thomasi paahi Simpson 1948 [synonym], Polydolops thomasi thomasi Simpson 1948 [synonym]
†Polydolops thomasi crassus Ameghino 1902
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: omnivoresubc
Reproduction: viviparoussubc
Created: 2011-04-28 11:05:11
Modified: 2011-04-27 20:05:35
Source: subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Hopson 1973, Clemens 1979, Carroll 1988, Lillegraven 1979

Age range: base of the Casamayoran to the top of the Bartonian or 56.00000 to 38.00000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Casamayoran56.0 - 48.0Argentina (Chubut) Polydolops thomasi (49898 141758 175742) Polydolops thomasi, Orthodolops sciurinus (176285)
Mustersan48.0 - 42.0Argentina (Chubut) Polydolops mayoi (175761)
Lutetian47.8 - 41.3Argentina (Chubut) Polydolops thomasi (44956 176170 176171)
Middle Eocene47.8 - 37.71Argentina (Chubut) Polydolops thomasi (176674)
Bartonian41.3 - 38.0Argentina (Chubut) Polydolops thomasi (49900 176167 176185 176186 176492) Polydolops thomasi, Polydolops fur, Polydolops simplex (type locality: 13779)