Argovisaurus (meaning "Aargau lizard") is an extinct genus of ophthalmosaurian ichthyosaurs from the Middle Jurassic (Bajocian) Hauptrogenstein Formation of Switzerland. The genus contains a single species, A. martafernandezi, known from a partial skeleton. Argovisaurus was a large ichthyosaur compared to its relatives.
Argovisaurus (meaning "Aargau lizard") is an extinct genus of ophthalmosaurian ichthyosaurs from the Middle Jurassic (Bajocian) Hauptrogenstein Formation of Switzerland. The genus contains a single species, A. martafernandezi, known from a partial skeleton. Argovisaurus was a large ichthyosaur compared to its relatives.
== Discovery and naming == The Argovisaurus holotype specimen, PIMUZ A/III 5279, was discovered and collected before 2004 by Elmar Meier in sediments of the Hauptrogenstein Formation near Auenstein in Canton of Aargau, Switzerland. The specimen consists of a largely disarticulated skeleton, including many vertebral centra and neural arches, ribs, part of both clavicles, and most of the cranium, including the braincase and jaws.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).