Proexochokefalos (meaning "big head with big tuberosities") is an extinct genus of machimosaurid teleosauroid from the Jurassic of France[1]
The type species, S. heberti, was originally named "Steneosaurus" heberti by Morel de Glasville in 1876 from a complete skull and mandible (MNHN.F 1890-13) found in the Callovian aged Marnes de Dives near Villers-sur-mer in the Calvados department of Normandy, France.[2] [3] [4] Steneosaurus depressus is a junior synonym. Another species referred to the genus, Proexochokefalos cf. bouchardi is known from remains from the Calcaire de Caen, France, and Reuchenette Formation, Switzerland.[1]
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