Where: Quay County, New Mexico (35.1° N, 103.4° W: paleocoordinates 10.2° N, 43.1° W)
• coordinate estimated from map
When: Bull Canyon Formation (Dockum Group), Lacian to Lacian (221.5 - 212.0 Ma)
• early-middle Norian, based upon presence of Aetosaurus
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; sandstone and siltstone
Size class: macrofossils
Collected in the 1980s; reposited in the NMMNH
Primary reference: A. B. Heckert and S. G. Lucas. 1998. First occurrence of Aetosaurus (Reptilia: Archosauria) in the Upper Triassic Chinle Group (USA) and its biochronological significance. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1998(10):604-612 [R. Butler/R. Butler]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 92090: authorized by Richard Butler, entered by Richard Butler on 29.10.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Aetosaurinae indet. Baur 1887 aetosaur NMMNH P-17165, P17212, P-17213, P-17215, P-17216, P-17223 scutes
Typothorax sp. Cope 1875 aetosaur | |
Amphibia | |
Apachesaurus sp. Hunt 1993 tetrapod |