Emry, Robert J., Korth, William W. (1993) Evolution in Yoderimyinae (Eomyidae: Rodentia), with new material from the White River Formation (Chadronian) at Flagstaff Rim, Wyoming. Journal of Paleontology, 67 (6) 1047-1057 doi:10.1017/s0022336000025373
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Evolution in Yoderimyinae (Eomyidae: Rodentia), with new material from the White River Formation (Chadronian) at Flagstaff Rim, Wyoming | ||
| Journal | Journal of Paleontology | ||
| Authors | Emry, Robert J. | Author | |
| Korth, William W. | Author | ||
| Year | 1993 (November) | Volume | 67 |
| Issue | 6 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0022336000025373Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 416110 | Long-form Identifier | mindat:1:5:416110:7 |
| GUID | 0 | ||
| Full Reference | Emry, Robert J., Korth, William W. (1993) Evolution in Yoderimyinae (Eomyidae: Rodentia), with new material from the White River Formation (Chadronian) at Flagstaff Rim, Wyoming. Journal of Paleontology, 67 (6) 1047-1057 doi:10.1017/s0022336000025373 | ||
| Plain Text | Emry, Robert J., Korth, William W. (1993) Evolution in Yoderimyinae (Eomyidae: Rodentia), with new material from the White River Formation (Chadronian) at Flagstaff Rim, Wyoming. Journal of Paleontology, 67 (6) 1047-1057 doi:10.1017/s0022336000025373 | ||
| In | (1993, November) Journal of Paleontology Vol. 67 (6) Cambridge University Press (CUP) | ||
| Abstract/Notes | Three species of Yoderimyinae (Eomyidae: Rodentia) are recognized from the lower part of the White River Formation (early to medial Chadronian) in the Flagstaff Rim area, Wyoming. The new material allows an improved diagnosis for the subfamily. The enamel microstructure of Yoderimyinae supports its inclusion in the Eomyidae.A new genus, Zemiodontomys, is established for Yoderimys burkei Black, and new material, including upper dentition, is referred to this species. This genus differs from Yoderimys in having higher crowned and more lophodont teeth and in lacking P3. A second new genus, Litoyoderimys, is established for Yoderimys lustrorum Wood, and a new species, L. auogoleus, is referred to the genus. This genus has lower crowned, more cuspate teeth than Yoderimys.Through early and medial Chadronian time, evolution in yoderimyines includes the following morphologic transformations: increase in size; increase in crown height and lophodonty of cheek teeth; reduction of P3 (from double-rooted, to single-rooted, to absent); increase in relative size of P4 and p4; and increased longitudinal torsion of the mandible. | ||
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