# Heterodontosuchus

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Extinct genus of reptiles

Not to be confused with [Heterodontosaurus](/source/Heterodontosaurus).

Heterodontosuchus Temporal range: Late Triassic Scientific classification Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Phytosauria Family: Phytosauridae Subfamily: Pseudopalatinae Genus: Heterodontosuchus Lucas, 1898 Species H. ganei Lucas, 1898 (type)

***Heterodontosuchus*** is a [dubious](/source/Nomen_dubium) [genus](/source/Genus) of extinct [phytosaur](/source/Phytosaur). The genus was first described from a fragmentary anterior section of the mandible found from the [Henry Mountains](/source/Henry_Mountains) in southeastern [Utah](/source/Utah), USA. More fossils were later found from [Arizona](/source/Arizona).[1] The name *Heterodontosuchus* refers to the difference in size between anterior and posterior teeth on this mandible.[2] The teeth were compressed antero-posteriorly spaced closely together.[3] The genus is now thought to be [synonymous](/source/Synonym_(taxonomy)) with *[Nicrosaurus](/source/Nicrosaurus)*, and the type and only [species](/source/Species), *H. ganei*, is regarded as a *nomen dubium* due to the fragmentary nature of the remains associated with it.

## References

1. **[^](#cite_ref-1)** von Huene, F. R. (1917). Notes on the age of the continental Triassic beds in North America with remarks on some fossil vertebrates. *Proceedings of the United States National Museum* **69**(2644):1-10.

1. **[^](#cite_ref-2)** Lucas, F. A. (1898). *Heterodontosuchus ganei*. *American Journal of Science* **4**(6):399

1. **[^](#cite_ref-3)** Lees, J. H. (1907). The skull of *Paleorhinus*, a Wyoming phytosaur. *Journal of Geology* **15**:121-151.

- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

v t e Phytosauria Kingdom: Animalia Phylum: Chordata Class: Sauropsida Clade: Archosauromorpha Clade: Crurotarsi Sauropsida see Sauropsida Archosauromorpha see Archosauromorpha Phytosauria see below↓ Phytosauria Phytosauria Calamosuchus Diandongosuchus Heteropelta? Parasuchidae Arganarhinus Ebrachosuchus Paleorhinus Parasuchus Wannia Mystriosuchinae / Phytosauridae Angistorhinus Brachysuchus Colossosuchus Jupijkam Protome Rutiodon Volcanosuchus Leptosuchomorpha Leptosuchus Pravusuchus Smilosuchus Mystriosuchini Angistorhinopsis Machaeroprosopus Mystriosuchus Nicrosaurus Redondasaurus Nomina dubia Belodon Centemodon Clepsysaurus? Coburgosuchus Compsosaurus Francosuchus Heterodontosuchus Mesorhinosuchus Omosaurus? Palaeoctonus? Phytosaurus Rileyasuchus Suchoprion Termatosaurus? Category

Taxon identifiers Heterodontosuchus Wikidata: Q4162501 GBIF: 4821675 IRMNG: 1257815 Open Tree of Life: 4126727

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Adapted from the Wikipedia article [Heterodontosuchus](https://en.wikipedia.org/wiki/Heterodontosuchus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Heterodontosuchus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.