PaleoDB taxon number: 155546
Synonym: Placerias gigas Camp and Welles 1956 (taxon 159339)
Full reference: F. A. Lucas. 1904. A new batrachian and a new reptile from the Trias of Arizona. Proceedings of the United States National Museum 27:193-195
Sister taxa: none
- Placerias hesternus: USNM 2198, a limb element (Humerus). Its type locality is 3 miles north of Tanners Crossing, which is in a Norian terrestrial horizon in the Chinle Formation of Arizona.
- Placerias gigas: Its type locality is Placerias Quarry, UCMP A269, which is in a Norian wet floodplain mudstone/claystone in the Chinle Formation of Arizona.