Fossils of Sargodon tomicus are found in rocks of Ladinian (late Middle Triassic) to Rhaetian (latest Triassic) age. Remains have been described from Austria (Lower Austria, Vorarlberg), England, Italy (Campania, Lombardy), Germany (Baden-Württemberg), Poland (Tatra Mountains) and Switzerland (Graubünden).[1][2] It is known from both complete specimens, which could reach body lengths of about 1 m (3.3 ft), and isolated dental plates that provided a triturating surface, suggesting that these animals fed on shelled organisms.
