ammonites
Spinosuchus Huene 1932 (archosauromorph)

Reptilia - Diapsida - Trilophosauridae

Full reference: F. v. Huene. 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte [The fossil reptile order Saurischia, their development and history]. Monographien zur Geologie und Palaeontologie, serie 1 4(1-2):1-361

Parent taxon: Trilophosauridae according to J. A. Spielmann et al. 2009

Sister taxa: Tricuspisaurus, Trilophosaurus, Variodens

Subtaxa: Spinosuchus caseanus

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Ecology: