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Ansomys cyanotephrus
Taxonomy
Ansomys cyanotephrus was named by Korth (2007). Its type specimen is CM 54080, a tooth (right M1 or M2), and it is a 3D body fossil. Its type locality is Harris Ranch Unit E Silt, which is in an Arikareean terrestrial horizon in South Dakota.
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Ansomys cyanotephrus Korth p. 740 fig. 1 |
| 2022 | Ansomys cyanotephrus Korth 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.
†Ansomys cyanotephrus Korth 2007
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. W. Korth 2007 | Small species of the genus, similar in size to A. hepburnensis; complex pattern of lophules in the basins of the cheek teeth; metaconids not as anteroposteriorly compressed on m2-m3 as in other species; mesostylids single and hypolophids complete on lower molars; m1 and m2 longer than wide; p4 smaller than molars; m3 smaller than m2. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1991, Carroll 1988, Hendy et al. 2009, Ji et al. 2002, Lillegraven 1979 | |||||
Age range: base of the Late/Upper Chadronian to the top of the Arikareean or 37.00000 to 18.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Chadronian - Orellan | USA (Nebraska) | Ansomys cyanotephrus (230806) | |
| Arikareean | USA (South Dakota) | Ansomys cyanotephrus (type locality: 17520) |