Vertebrata - Stegocephali

Invalid subtaxa: Capitosaurus Münster 1836 [nomen dubium], Capitosaurus arenaceus Münster 1836 [nomen dubium], Cyclotosaurus papilio Wepfer 1913 [nomen vanum], Labyrinthodon arenaceus Münster 1836 [nomen dubium]

Parent taxon: Capitosauroidea according to R. R. Schoch 2013

Sister taxa: Benthosuchidae, Cyclotosauridae, Deltacephalidae, Eocyclotosaurus, Eryosuchidae, Eryosuchus, Mastodonsaurus, Meyerosuchus, Odenwaldia, Paracyclotosauridae, Paracyclotosaurus, Parotosuchidae, Parotosuchus, Rewanobatrachus, Mastodonsauridae, Heylerosauridae

Subtaxa: Cyclotosaurus intermedius, Cyclotosaurus mordax, Cyclotosaurus posthumus, Cyclotosaurus robustus, Cyclotosaurus stantonensis

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Ecology: amphibious piscivore