Sphenocoelus is an extinct genus of brontothere known from North America and Asia during the Middle Eocene.
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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).