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Microeutypomys karenae
Taxonomy
Microeutypomys karenae was named by Walton (1993). Its type specimen is TMM 42486-451, a tooth (isolated left upper first molar), and it is a 3D body fossil. Its type locality is Casa Blanca, which is in an Uintan estuary/bay sandstone in the Laredo Formation of Texas. It is the type species of Microeutypomys.
Entered
by J. Alroy on 2003-01-23; modified by J. Marcot on 2026-05-05
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Microeutypomys karenae Walton p. 262 figs. Figure 1 |
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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.
†Microeutypomys karenae Walton 1993
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. H. Walton 1993 | Smaller species ofMicroeutypomys. Mesoloph directed anterolabially; valley between mesoloph and pro- toloph deep and oblique, terminates at protoloph. Central valley variably crenulated, may be blocked lingually by protocone-hypocone connection. Upper molars slightly wider than long, but not to same degree as Microeutypomys tilliei. Mesolophid in m3 does not contact entoconid. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Nowak 1999, Lillegraven 1979, Hendy et al. 2009, Ji et al. 2002 | |||||
Age range: Late/Upper Uintan or 45.90000 to 39.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Uintan | USA (Texas) | Eutypomyidae indet. (type locality: 16542) |