Sphenocoelus is an extinct genus of brontothere known from North America and Asia during the Middle Eocene.
Sphenocoelus is an extinct genus of brontothere known from North America and Asia during the Middle Eocene.
== Description == Sphenocoelus is an average-sized brontothere, with a dolichocephalic skull. Some specimens of Sphenocoelus bear a prominent sagittal crests, though others lack them entirely. The molars are long and narrow, and the third and fourth premolars have a cusp on the posterior medial (central hind) portion of the tooth. They bear 4 digits on the forefeet.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).