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What mammals, extinct or extant, other than horses, donkeys, zebras, and procoptodons, have/had a single large toe?
Surely there must have at least been some extinct equines which displayed this feature. Though I'd love to know about any non-equines, too. Doesn't matter whether they're ungulates or (as in the case of procoptodons) not.
1 Answer
- Cal KingLv 77 years ago
Only animal I can think of with a single digit is the fossil dinosaur Mononykus olecranus, although a new one (Linhenykus) with a single digit has recently been added to the list.
http://www.chinadaily.com.cn/cndy/2011-01/25/conte...
The article above claims that the new one is the only known dinosaur with a single digit, but that claim is based on the disputed classification of Mononykus as a bird, not a dinosaur. That is strange as well, because the same people who classify Mononykus as a bird also insist that birds are dinosaurs. LOL
