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Smilodectes gracilis

Mammalia - Primates - Notharctidae

Taxonomy
Hyopsodus gracilis was named by Marsh (1871). Its type specimen is YPM 11800, a mandible (anterior part of a left mandibular ramus containing p4, m1, and a portion of p3), and it is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was recombined as Notharctus gracilis by Cope (1872), Troxell (1926) and Robinson (1957); it was recombined as Sarcolemur gracilis by Osborn (1902); it was recombined as Smilodectes gracilis by Wortman (1903), Matthew (1909), Gazin (1958), Gazin (1968), Gazin (1976), Gingerich (1979) and Eaton (1982).

Synonyms
Synonymy list
YearName and author
1871Hyopsodus gracilis Marsh
1872Notharctus gracilis Cope
1899Hyopsodus gracilis Matthew
1902Hyopsodus gracilis Hay p. 790
1902Sarcolemur gracilis Osborn
1903Smilodectes gracilis Wortman p. 362–363
1909Smilodectes gracilis Matthew
1917Aphanolemur gibbosus Granger and Gregory
1917Notharctus matthewi Granger and Gregory
1926Notharctus gracilis Troxell
1957Notharctus gracilis Robinson
1958Smilodectes gracilis Gazin
1968Smilodectes gracilis Gazin
1976Smilodectes gracilis Gazin
1979Smilodectes gracilis Gingerich p. 155
1982Smilodectes gracilis Eaton

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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
orderPrimates
suborderStrepsirrhiniGeoffroy Saint-Hilaire 1812
infraorderAdapiformesHoffstetter 1977
superfamilyAdapoideaTrouessart 1879
familyNotharctidaeTrouessart 1879
genusSmilodectes
speciesgracilis()

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
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: arborealo
Diet: omnivoreo
Created: 2005-08-26 13:27:51
Modified: 2005-08-26 15:27:51
Source: o = order, c = class, subp = subphylum
References: Carroll 1988, Hopson 1973, Nowak 1999, Hendy et al. 2009

Age range: Bridgerian or 50.30000 to 46.20000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Bridgerian50.3 - 46.2USA (Utah) Smilodectes gracilis (16396)
Bridgerian50.3 - 46.2USA (Wyoming) Notharctus gracilis (16205 16287) Smilodectes gracilis (16079 16083 16219 type locality: 16228 16232 16245 16276 16289 16394 16441 16448 16500 129895)
Bridgerian50.3 - 46.2USA (Colorado) Smilodectes gracilis (16239)