A New Dermatemydid (Testudines, Kinosternoidea) from the Paleocene-Eocene Thermal Maximum, Willwood Formation, Southeastern Bighorn Basin, Wyoming

@inproceedings{Bourque2015AND,
  title={A New Dermatemydid (Testudines, Kinosternoidea) from the Paleocene-Eocene Thermal Maximum, Willwood Formation, Southeastern Bighorn Basin, Wyoming},
  author={Jason R. Bourque and JamesH. Hutchison and Patricia A. Holroyd and Jonathan I. Bloch},
  year={2015}
}
ABSTRACT Gomphochelys nanus, new genus and species, is described from the earliest Wasatchian (biohorizon Wa 0; ∼55.8 Ma) of the southeastern Bighorn Basin, Washakie County, Wyoming. The new taxon represents the only known dermatemydid from the Paleocene—Eocene Thermal Maximum (PETM) interval and extends the lineage back from previous records by approximately 2 million years. Gomphochelys nanus has a thick tricarinate carapace and differs from other dermatemydids in attaining a smaller adult… 
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