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| Journal of Paleontology | ![]() |
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PALEONTOLOGICAL NOTES |
1 Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin 78712-0254; current address: Department of Geology and Geography, 210 Petrie Hall, Auburn University, Auburn, Alabama 36849-5305, <ruezden@auburn.edu,>
2 Hagerman Fossil Beds National Monument, 221 North State Street, PO Box 570, Hagerman, Idaho 83332, <pgensler@yahoo.com>
| The first 20% of the full text of this article appears below. |
| INTRODUCTION |
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The specimens described here are the first records of Mictomys vetus (Wilson, 1933) from HAFO. These fossils are also the earliest records of Mictomys anywhere and impact previously proposed scenarios of arvicoline biochronology (i.e., Repenning and Grady, 1988; Repenning et al., 1995; Fejfar and Repenning, 1998). The fossils described here are curated in the vertebrate paleontology collection of the IMNH in Pocatello, Idaho.
Abbreviations
AC, anterior cap; BRA1 and BRA2, buccal (=labial) reentrant angles 1 and 2; LaPW, labial primary wing; LiPW, lingual primary wing; LRA1, LRA2, and LRA3, lingual reentrant angles 1, 2, and 3; m1, lower first molar; m3, lower third molar; PL, posterior loop; T1, T2, and T3, triangles 1, 2, and 3.
| SYSTEMATIC PALEONTOLOGY |
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