Leonardus is an extinct mammal genus from the Late Cretaceous (Late Santonian to Maastrichtian) of South America. It is a meridiolestidan, closely related to the also Late Cretaceous Cronopio and the Miocene Necrolestes.
Leonardus is an extinct mammal genus from the Late Cretaceous (Late Santonian to Maastrichtian) of South America. It is a meridiolestidan, closely related to the also Late Cretaceous Cronopio and the Miocene Necrolestes.
== Description == Leonardus is a fairly small mammal, similar in size to Necrolestes. It is known from two specimens, the holotype MACN-RN 172, composed of a left maxilla, four associated molariform teeth and two pairs of alveoli, and MACN-RN 1907, a right mandible with two molariforms. Said molariforms are vaguely peg-like, with a dome-like stylocone.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).