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Origolestes
Taxonomy
Origolestes was named by Mao et al. (2020). It is not extant.
It was assigned to Zhangheotheriidae by Mao et al. (2020).
It was assigned to Zhangheotheriidae by Mao et al. (2020).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Origolestes Mao et al. |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. Mao et al. 2020 | Dental formula I2-C1-P3-M4/I2-C1-P4-M5 (I, incisor; C, canine; P, premolar; M,
molar; superscript, upper teeth; subscript, lower teeth). Based on tooth occlusal relationship, the upper premolars are interpreted as P1, P3, and P4, with P2 being lost. Origolestes differs from Anebodon in tooth number and formula and in having more acutely arranged main cusps and wider buccal shelf on upper molars. Differs from Zhangheotherium in the shape of the mandible and tooth formula, in having one fewer upper incisor, and in many postcranial structures. Differs from Maotherium in having the septomaxilla, a larger facial explosion of the lacrimal, and a restricted rostrum; further from Maotherium sinensis in having one fewer lower tooth and a distinct diastema between p1 and p2 and from Maotherium asiaticus in having one more lower premolar and i1 larger than i2 and lower canine, a smaller diastema, and dentary lacking constriction at the region of the diastema. Differs from Kiyatherium in lacking the lingual cingulid on the lower molars and having a more acute angle in main cusp arrangement. Differ from Yermakia in having a less curved dentary with a slimmer coronoid process and lower molar cusps slimmer, cusps b and c are relatively small in relation to cusp a, and main cusps are arranged more acutely. Differs from spalacotheriids, Akidolestes and Lactodens in having fewer upper and lower teeth that have conical cusps and the dentary primitively retained the Meckelian groove and ossified Meckel’s cartilage. See the detailed differential diagnosis below. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Luo et al. 2003, Carroll 1988, Hendy et al. 2009, Hopson 1973 | |||||
Collections
No collection or age range data are available