Acaenasuchus

Acaenasuchus; Temporal range: Late Triassic, 228–216.5 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Aetosauria
Family:	†Stagonolepididae
Subfamily:	†Desmatosuchinae
Genus:	<templatestyles src="Noitalic/styles.css"/>†Acaenasuchus; Long & Murry 1995
Species
	<templatestyles src="Noitalic/styles.css"/>†A. geoffroyi Long & Murry 1995 (type);

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Acaenasuchus (meaning "thorn crocodile") is an extinct member of the order Aetosauria, endemic to what would be North America during the Triassic, existing for approximately 11.5 million years.^[1]

It was a heavily armored aetosaur with thorn-like spikes on its back.

Taxonomy

Acaenasuchus was named by Long and Murry (1995). Its type is Acaenasuchus geoffreyi. It was assigned to Stagonolepididae by Irmis (2005).^[2]

References

↑ Paleobiology Database: Acaenasuchus, basic info
↑ R. B. Irmis. 2005. The vertebrate fauna of the Upper Triassic Chinle Formation in northern Arizona. In S. J. Nesbitt, W. G. Parker, & R. B. Irmis (eds.), Guidebook to the Triassic Formations of the Colorado Plateau in Northern Arizona: Geology, Paleontology, and History. Mesa Southwest Museum Bulletin 9:63-88