Ampelognathus (meaning "grapevine jaw") is an extinct genus of possibly rhabdodontomorph ornithopod dinosaurs from the Late Cretaceous (Cenomanian) Lewisville Formation of Texas. The type species is Ampelognathus coheni.
Ampelognathus (meaning "grapevine jaw") is an extinct genus of possibly rhabdodontomorph ornithopod dinosaurs from the Late Cretaceous (Cenomanian) Lewisville Formation of Texas. The type species is Ampelognathus coheni.
== Discovery and naming == The Ampelognathus holotype, DMNH 2021-05-02, was found in sediments of the Lewisville Formation of the Woodbine Group (Arlington or Tarrant Member), dated to the Cenomanian age of the Late Cretaceous period, in the Grapevine Lake emergency spillway of Tarrant County in Texas, United States. The specimen consists of a single, nearly-complete left dentary. It was found away from the holotype of the enantiornithean bird Flexomornis.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).