Protolabis transmontanus

Protolabis transmontanus is an extinct species of camelid, a member of the family Camelidae in the genus Protolabis. It was first described under another genus name by Cope in 1879, and the Paleobiology Database dates the species from the Burdigalian to the Serravallian stage, between about 18.5 and 12.5 million years ago, in the early and middle Miocene, from seven fossil occurrences in Colorado, Montana, Nebraska, New Mexico, Oregon and Wyoming in the United States. The database lists it as an extinct member of the even-toed ungulates with a terrestrial, ground-dwelling way of life and a browsing diet, values it takes from the wider group, and it files the name as a synonym of Miolabis fissidens, whereas the GBIF backbone taxonomy lists Protolabis transmontanus as an accepted species, so the two sources disagree about whether it stands apart from that species.