

This is the skull of a creature with lots of scientific names, but in “Osteology of Dolichorhinus longiceps Douglass, with a review of the species of Dolichorhinus in the order of their publication,” they called it Dolichorhinus cornutus.
It was a brontothere, a creature something like a smallish rhino but with a somewhat different family tree. They were actually closer to horses, and had long, horsey faces. They died out around 40 million years ago, before there were any humans to argue over what to name them.
The name D. cornutus was actually “the old name” when the article was published in the early 1920s – D. longiceps was the new name. Nowadays, we call them Sphenocoelus hyognathus for the most part.
The article was published in Memoirs of the Carnegie Museum, Volume IX, which was published between 1922 and 1924, now preserved in the Smithsonian Library’s contributions to the Biodiversity Heritage Library.