Two 2017 studies reshaped Ice Age horse taxonomy. Barrón-Ortiz et al. examined tooth morphology and ancient mitochondrial DNA showing greater complexity than expected. Meanwhile, Heintzman et al. used genomic evidence to place the stilt-legged horse in its own genus — Haringtonhippus francisci.
2017 genetic studies reclassified Ice Age horse taxonomy
Key facts
- Barrón-Ortiz and colleagues (2017) examined tooth morphology and ancient mitochondrial DNA from late Pleistocene horses across western North America
- Their study demonstrated taxonomy was considerably more complicated than the traditional proliferation of named species
- Heintzman and colleagues (2017) used mitochondrial and nuclear genomic evidence to demonstrate New World stilt-legged horses represented a distinct lineage
- They proposed the genus Harringtonhippus with Harringtonhippus francisi as the surviving form
Sources
A new genus of horse from Pleistocene North America - PubMedpubmed.ncbi.nlm.nih.gov
Authors Peter D Heintzman 1. We therefore propose a new genus, Haringtonhippus, for the sole species H. francisci. ancient DNA; evolutionary ...
The geographic distribution of Haringtonhippus. Blue circles are ...researchgate.net
The stilt-legged horses are represented by a single lineage and species in eastern Beringia, Haringtonhippus francisci Hay, 1915 (Heintzman et al. 2017 , which ...
Haringtonhippus francisci (Hay 1915)—Harington's Stilt-legged Horseutep.edu
Heintzman et al. (2017) considered Haringtonhippus to be monospecific. They considered nine species names that have been considered by some authors to be stilt ...
Publication: A new genus of horse from Pleistocene North Americadash.harvard.edu
We therefore propose a new genus, Haringtonhippus, for the sole species H. francisci. Our combined genomic and phenomic approach to resolving the systematics of ...
New World stilt-legged horse - Roman Uchyteluchytel.com
Haringtonhippus is an extinct genus of equine from the Pleistocene of North America The genus is monospecific, consisting of the species H. francisci, ...
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