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Merycochoerinae
Taxonomy
Merycochoerinae was named by Schultz and Falkenbach (1940). Its type is Merycochoerus.
It was assigned to Merycoidodontidae by Schultz and Falkenbach (1940), Schultz and Falkenbach (1968), Stevens and Stevens (1996), Stevens and Stevens (2007), Stevens et al. (2023).
It was assigned to Merycoidodontidae by Schultz and Falkenbach (1940), Schultz and Falkenbach (1968), Stevens and Stevens (1996), Stevens and Stevens (2007), Stevens et al. (2023).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Merycochoerinae Schultz and Falkenbach p. 216 |
| 1968 | Merycochoerinae Schultz and Falkenbach p. 366 |
| 1996 | Merycochoerinae Stevens and Stevens p. 510 |
| 2007 | Merycochoerinae Stevens and Stevens p. 163 |
| 2023 | Merycochoerinae Stevens et al. p. 76 |
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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.
Subfm. †Merycochoerinae Schultz and Falkenbach 1940
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G. †Hypsiops Schultz and Falkenbach 1950
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†Hypsiops brachymelis Douglass 1907
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Invalid names: Ticholeptus breviceps Douglass 1907 [synonym], Ticholeptus petersoni Loomis 1923 [synonym]
†Hypsiops rooneyi Schultz and Falkenbach 1950
G. †Merycochoerus Leidy 1858
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†Merycochoerus magnus Loomis 1924
†Merycochoerus matthewi Loomis 1924
†Merycochoerus pinensis Schultz and Falkenbach 1949
†Merycochoerus proprius Leidy 1858
Invalid names: Merycochoerus (Brachycrus) Matthew 1901 [invalid subgroup], Paracotylops Matthew 1901 [synonym]
G. †Submerycochoerus Schultz and Falkenbach 1950
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†Submerycochoerus bannackensis Douglass 1907
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Invalid names: Pseudomesoreodon boulderensis Schultz and Falkenbach 1950 [synonym], Pseudomesoreodon rolli Schultz and Falkenbach 1950 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. S. Stevens et al. 2023 | Medium to large-sized oreodonts, developing a deeply retracted narial notch and very broad narial opening, with a short, blunt nasal bone in the most derived species; the alveolar margin is rounded and very robust; the ventral part of the narial opening has coalesced to form a strong incisive margin (all features not found in Brachycrus). The facial region is convex (not concave as in Brachycrus) with a large, deep malar bone, making for a deep snout. The anterior surface of the premaxillae has no deep depression, as seen in Brachycrus. |