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Amphechinus robinsoni
Taxonomy
Amphechinus robinsoni was named by Gilbert (1974). It is not extant. Its type specimen is IMPC 9018, a mandible (mandible sin with i and p4.).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Amphechinus robinsoni Gilbert |
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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.
†Amphechinus robinsoni Gilbert 1974
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Gilbert 1974 | An Amphechinus species of large size. the lower incisor is straight. The metaconid of p4 is very small. The trigonid basin of p4 is very shallow. p4 without labial cingulum. The hypoconid of m1 and m2 is lower than the entoconid, but very wide and robust. The paralophid of m2 does not close the trigonid basin. Metaconule present in M1 and M2. M3 single rooted. The foramen mentale is situated below the p4. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Hendy et al. 2009, Ji et al. 2002, Nowak 1991, Carroll 1988 | |||||
Collections
No collection or age range data are available