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Matthewlabis cedrensis

Mammalia - Artiodactyla - Camelidae

Taxonomy
Protomeryx cedrensis was named by Matthew (1901). Its type specimen is Amer. Mus. No. 8969, a mandible, and it is a 3D body fossil.

It was synonymized subjectively with Protomeryx campester by Stock (1935), Galbreath (1953) and McKenna (1966); it was recombined as Gentilicamelus cedrensis by Loomis (1936); it was synonymized subjectively with Stenomylus campester by Lander (1983); it was recombined as Paralabis cedrensis by Prothero (1996) and Honey et al. (1998); it was recombined as Matthewlabis cedrensis by Prothero (2011).

Synonyms
Synonymy list
YearName and author
1901Protomeryx cedrensis Matthew
1901Protomeryx campester Matthew p. 422
1921Pseudolabis matthewi Lull
1921Pseudolabis (Paralabis) matthewi Lull p. 392
1936Gentilicamelus campestris Loomis p. 59
1936Gentilicamelus cedrensis Loomis p. 59
1940Pseudolabis (Paralabis) matthewi Scott p. 617
1953Protomeryx campester Galbreath
1966Paralabis matthewi McKenna
1966Protomeryx campester McKenna
1972Paratylopus matthewi McKenna and Love
1983Stenomylus campester Lander
1996Paralabis cedrensis Prothero p. 627 figs. Figure 9, Tables 2,3,4
1998Paralabis cedrensis Honey et al.
2011Matthewlabis cedrensis Prothero

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
suborderTylopoda()
superfamilyCameloidea
familyCamelidae
genusMatthewlabis
speciescedrensis(Matthew 1901)

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
D. R. Prothero 1996Medium-sized camel (length of Ml-3 = 43-45 mm) with moderately hypsodont teeth and highly reduced premolars (P2-4/M1-3 ratio = 0.506—see Table 4). Distinguished from Poebrotherium, Paratylopus, and Gentilicamelus by its larger size, more hypsodont teeth, and more reduced premolars. Distinguished from Pseudolabis or Miotylopus by less hypsodont teeth and presence of mesostyle. Smaller than Oxydactylus, but otherwise quite similar.