|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Artiodactyla - Merycoidodontidae
It was synonymized subjectively with Eporeodon latidens by Lander (1998); it was recombined as Desmatochoerus megalodon by Stevens and Stevens (1996) and Stevens and Stevens (2007).
|Year||Name and author|
|1906||Mesoreodon megalodon Peterson|
|1907||Mesoreodon megalodon Peterson p. 24|
|1921||Promerycochoerus (Desmatochoerus) curvidens Thorpe p. 241 figs. 6A, B|
|1924||Promerycochoerus gregoryi Loomis|
|1933||Hypselochoerus gregoryi Loomis|
|1937||Promerycochoerus gregoryi Thorpe|
|1949||Mesoreodon megalodon Schultz and Falkenbach p. 145 figs. 7, 16, 17, 19, 20, 25, 26|
|1954||Desmatochoerus curvidens Schultz and Falkenbach p. 182 figs. 4-7|
|1963||Desmatochoerus curvidens Macdonald|
|1970||Desmatochoerus curvidens Macdonald|
|1996||Desmatochoerus megalodon Stevens and Stevens|
|2007||Desmatochoerus megalodon Stevens and Stevens p. 160|
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|M. R. Thorpe 1921 (Promerycochoerus (Desmatochoerus) curvidens)||Small size; infra-orbital foramen above posterior part of P3; bullæ compressed, not extending below postglenoid process; steop basicranial axis; p 2 and P 3 crowded, unreduced; inferior border of ramus turns sharply downward below anterior part of M3 ; zygomatic arch narrow immediately in advance of the glenoid process, continuing forward and upward in a strong convexity on the side of face, more as in Eporeodon than in Promerycochoerus lacrymal fossæ deep but small; depth of malar below orbit, 29 mm.; hypocone of M3 noticeably smaller than protocone; internal cingulum on superior molars but faintly developed; transverse crests near together; very strong convexity above foramen magnum; crest of zygoma low and directly above glenoid process. Shape of the canine more like that of a carnivore than an herbivore.|
|C. B. Schultz and C. H. Falkenbach 1949||SKULL: Larger, more massive, and broader than examples of M. cheeki; approximately equal in length to that of M. chelonyx wheeleri but broader; sagittal crest higher than in M. cheeki; frontals wide; malar deep below the orbit; zygomatic arch more massive and extending upward and posteriorly farther than in examples of M. cheeki,·lacrimal fossa larger than in examples of M. cheeki; infra- orbital foramen located above the posterior portion of pa and extending to the anterior portion of P 4 ; paroccipital process wide at base, and wider and tapering more rapidly than in examples of M. cheeki; bulla well nflated, comparatively large and suboval in outline, larger than in examples of M. cheeki; postglenoid process more robust and wider transversely than in examples of M. cheeki.
MANDIBLE: More massive than examples of M. cheeki.
DENTITION: Dental series longer and heavier than in examples of M. cheeki.
LIMBS: Longer and heavier than in M. cheeki
|C. B. Schultz and C. H. Falkenbach 1954 (Desmatochoerus curvidens)||SKULL: Medium size; approximate size of examples of D. hatcheri, smaller than in D. leiityi; anterior nasal-maxilla contact approximately above P 1 ; infraorbital foramen above posterior portion of P 8 ; muzzle narrower than in D. hatcheri; postglenoid process wide transversely, rounded in D. hatcheri.
MANDIBLE: Approximately same size as examples of D. hatcheri; postsymphysis below P2 (below P2 in D. hatcheri); inferior border of ramus with more abrupt downward curve posterior to M2 than usually found in this genus.
DENTITION: Series shorter than in D. leiityi, slightly shorter than in D. hatcheri.