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Temporal range: Late Triassic
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Aetosauria
Family: Stagonolepididae
Genus: Coahomasuchus
Heckert & Lucas, 1999
  • C. kahleorum Heckert & Lucas, 1999 (type)

Coahomasuchus is an extinct genus of aetosaurine stagonolepidid. Fossils have been found from the Dockum Group in western Texas and date back to the Otischalkian faunachron (lower late Carnian) of the Late Triassic.[1] It was small for an aetosaur, being less than 1 meter long. The dorsal plates are distinctively flat and unflexed, and have a faint sub-parallel to radial ornamentation. The genus lacked spines or keels on these plates, features seen in many other aetosaurs.[2] Coahomasuchus was very similar in appearance to the closely related Aetosaurus.


  1. ^ Heckert, A. B., and Lucas, S. G. (2000). Taphonomy, phylogeny, biostratigraphy, biochronology, paleobiogeography, and evolution of the Late Triassic Aetosauria (Archosauria: Crurotarsi). Zentralbl. Geol. Paläontol 11–12:1539–1587.
  2. ^ Heckert, A. B.; Lucas, S. G. (1999). "A new aetosaur (Reptilia: Archosauria) from the Upper Triassic of Texas and the phylogeny of aetosaurs". Journal of Vertebrate Paleontology 19 (1): 50–68. doi:10.1080/02724634.1999.10011122. 

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