Stenon zebra
Equus stenonis or the Stenon zebra, is an extinct species of equine closely related to modern zebras and asses that inhabited Eurasia in the Pleistocene.
The African species Equus koobiforensis and E. oldowayensis are closely related to E. stenonis.
Barron-Ortiz et al. (2019) resurrect the genus Allohippus for Equus stenonis based on the results of their cladistic analysis regarding the interrelationships of the genus Equus.