| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
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).
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
| Year | Name and author |
|---|---|
| 1901 | Protomeryx cedrensis Matthew |
| 1901 | Protomeryx campester Matthew p. 422 |
| 1921 | Pseudolabis (Paralabis) matthewi Lull p. 392 |
| 1930 | Pseudolabis matthewi Hay p. 795 |
| 1936 | Gentilicamelus campestris Loomis p. 59 |
| 1936 | Gentilicamelus cedrensis Loomis p. 59 |
| 1940 | Pseudolabis (Paralabis) matthewi Scott p. 617 |
| 1953 | Protomeryx campester Galbreath |
| 1966 | Paralabis matthewi McKenna |
| 1966 | Protomeryx campester McKenna |
| 1972 | Paratylopus matthewi McKenna and Love |
| 1983 | Stenomylus campester Lander |
| 1996 | Paralabis cedrensis Prothero p. 627 figs. Figure 9, Tables 2,3,4 |
| 1998 | Paralabis cedrensis Honey et al. |
| 2011 | Matthewlabis cedrensis Prothero |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Matthewlabis cedrensis Matthew 1901
show all | hide all
Invalid names: Protomeryx campester Matthew 1901 [synonym], Pseudolabis (Paralabis) matthewi Lull 1921 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. D. Matthew 1901 (Protomeryx campester) | The type species, P. halli, is larger than any Poe'brotherium. No. 8969 represents a smaller species, of the size of Poe'brotherium labiatum, with postcanine diastema equal to p4 in length, and the diastema behind Pr equal in length to p2 , p8 and half of p-. Canine smaller and more recurved than in the type species; first premolar small, two-rooted, trenchant, second, third and fourth in- creasing successively a little in length and much more in width. Molars much as in Poebrotherium, the heel of -m8 more reduced. Distinguished from Protomeryx (Gomphotherium) ster;,bergi by the slenderer jaw with lohger diastemata and higher-crowned, more compressed teeth ; from Protomeryx? (Gomphotherium) serus Douglas by smaller size, different proportion of diastemata, etc. | |
| D. R. Prothero 1996 | Medium-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. |