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Taxonomy
Pliauchenia (Megatylopus) was named by Matthew and Cook (1909). Its type is Pliauchenia (Megatylopus) gigas.
It was synonymized subjectively with Paracamelus by Macdonald (1959); it was reranked as Megatylopus by Matthew (1924), Simpson (1945), Webb (1965), Patton (1969), Kurten and Anderson (1980), Harrison (1985), Voorhies and Corner (1986), Carroll (1988), Honey et al. (1998) and Lynch et al. (2020).
It was assigned to Pliauchenia by Matthew and Cook (1909) and Sinclair (1915); to Camelinae by Simpson (1945); to Camelopini by Webb (1965); to Camelidae by Matthew (1924), Patton (1969), Kurten and Anderson (1980), Harrison (1985) and Carroll (1988); and to Camelini by Voorhies and Corner (1986), Honey et al. (1998) and Lynch et al. (2020).
It was synonymized subjectively with Paracamelus by Macdonald (1959); it was reranked as Megatylopus by Matthew (1924), Simpson (1945), Webb (1965), Patton (1969), Kurten and Anderson (1980), Harrison (1985), Voorhies and Corner (1986), Carroll (1988), Honey et al. (1998) and Lynch et al. (2020).
It was assigned to Pliauchenia by Matthew and Cook (1909) and Sinclair (1915); to Camelinae by Simpson (1945); to Camelopini by Webb (1965); to Camelidae by Matthew (1924), Patton (1969), Kurten and Anderson (1980), Harrison (1985) and Carroll (1988); and to Camelini by Voorhies and Corner (1986), Honey et al. (1998) and Lynch et al. (2020).
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Pliauchenia (Megatylopus) Matthew and Cook p. 396 |
| 1915 | Pliauchenia (Megatylopus) Sinclair p. 77 |
| 1924 | Megatylopus Matthew p. 186 |
| 1945 | Megatylopus Simpson p. 150 |
| 1965 | Megatylopus Webb p. 44 |
| 1969 | Megatylopus Patton |
| 1980 | Megatylopus Kurten and Anderson p. 302 |
| 1985 | Megatylopus Harrison |
| 1986 | Megatylopus Voorhies and Corner p. 65 |
| 1988 | Megatylopus Carroll |
| 1998 | Megatylopus Honey et al. |
| 2020 | Megatylopus Lynch et al. |
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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.
Subg. †Pliauchenia (Megatylopus) Matthew and Cook 1909
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. D. Matthew and H. J. Cook 1909 |
Gigantic camels with dentition I 1/3, C1/1, P3-2/3-2, M3/3, the second premolar absent in both jaws, the first retarded or absent, the reduction of the posterior premolars intermediate between Procamelus and Camelus. Upper molars with promineμt external ribs and styles, as in Auchenia Limbs and feet moderately elongate and very massive, large in proportion to size of skull. | |
| M. R. Voorhies and R. G. Corner 1986 | (Modified after Matthew and Cook (1909), Webb (1965), and especially, Harrison (1979).) Large camelines with dental formula 1· 1·3·3/3·1·3· 3; 13/large, caniniform; C/C large, rounded; Plll pres- ent but not always erupted in females; P3/ variably reduced, seldom with complete internal crescent; mo- lars moderately low crowned (much less hypsodont than in Camelus, Gigantocamelus, or Camelops); ce- ment lacking in molar fossettes; antero-external stylids ("llama buttresses") lacking on lower molars; distal limb elements not foreshortened as in Gigantocamelus; proximal phalanges with posterolateral edges raised but attachment area of suspensory ligaments not oc- cupying more than one-half of posterior surface as in Camelops. |
Measurements
No measurements are available
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| Source: f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1991, Nowak 1999, Carroll 1988, Lillegraven 1979, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available