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Krabimeryx primitivus
Taxonomy
Krabimeryx primitivus was named by Metais et al. (2001). Its type specimen is TF 2676, a mandible (sin. with p4-m3), and it is not a trace fossil. Its type locality is Wai Lek pit, which is in an Eocene terrestrial lignite in the Krabi Basin B2 Formation of Thailand.
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Krabimeryx primitivus Metais et al. |
| 2001 | Krabimeryx primitivus Vislobokova p. S137 |
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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.
†Krabimeryx primitivus Metais et al. 2001
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. Metais et al. 2001 | Small primitive ruminant with lower molars morphologically close to those of Zhailimeryx. Differs from Zhailimeryx in its lingual cusps on lower molar more labiolingually compressed, its entoconid displaced forward with respect to the hypoconid, the lack of both rudimentary paraconid and hypoconulid on m1–2 and in its p4 with a metaconid more distally situated and without distinct entoconid. Further differs from Lophiomeryx by its smaller size, its labial cusps less selenodont on lower molars, the remains of a Dorcatherium fold and by a distinct groove on the anterior side of the entoconid. Krabimeryx further differs from Lophiomeryx by its p4 with a metaconid more distally situated and less individualized. Krabimeryx is larger than Iberomeryx, and it may be distinguished from it in having a well-marked ‘entoconidian groove’, a more transversely compressed hypoconulid and in lacking an ectostylid. |
Measurements
No measurements are available
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| Source: f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Nowak 1991, Nowak 1999 | |||||
Age range: Late/Upper Eocene or 37.20000 to 33.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | Thailand | Krabimeryx primitivus (13127 type locality: 49078 49083) |