A new genus of horse from Pleistocene North America


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Material Information

Title:
A new genus of horse from Pleistocene North America
Creator:
Heintzman, Peter D
Zazula, Grant D
MacPhee, Ross DE
Scott, Eric
Cahill, James A
McHorse, Brianna K
Kapp, Joshua D
Stiller, Mathias
Wooller, Matthew J
Orlando, Ludovic
Southon, John
Froese, Duane G
Shapiro, Beth
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
New World Stilt-Legged ( local )
Nwsl ( local )
Pleistocene Horses ( local )
North America ( local )
H. Francisci ( local )
Equus ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
The extinct ‘New World stilt-legged’, or NWSL, equids constitute a perplexing group of Pleistocene horses endemic to North America. Their slender distal limb bones resemble those of Asiatic asses, such as the Persian onager. Previous palaeogenetic studies, however, have suggested a closer relationship to caballine horses than to Asiatic asses. Here, we report complete mitochondrial and partial nuclear genomes from NWSL equids from across their geographic range. Although multiple NWSL equid species have been named, our palaeogenomic and morphometric analyses support the idea that there was only a single species of middle to late Pleistocene NWSL equid, and demonstrate that it falls outside of crown group Equus. We therefore propose a new genus, Haringtonhippus, for the sole species H. francisci. Our combined genomic and phenomic approach to resolving the systematics of extinct megafauna will allow for an improved understanding of the full extent of the terminal Pleistocene extinction event.

Record Information

Source Institution:
University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
The author retains copyright ownership of this item, which is made available for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the author.
Resource Identifier:
K26-00048 ( USFLDC: LOCAL DOI )
k26.48 ( USFLDC: LOCAL Handle )

USFLDC Membership

Aggregations:
University of South Florida
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serial

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