Where: San Juan County, New Mexico (36.3° N, 108.1° W: paleocoordinates 43.8° N, 86.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Naashoibito Member (Ojo Alamo Formation), Early/Lower Maastrichtian (70.6 - 65.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the NMMNH

Collection methods: mechanical,

Primary reference: R. M. Sullivan and S. G. Lucas. 2010. A new chasmosaurine (Ceratopsidae, Dinosauria) from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 169-180 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97796: authorized by Matt Carrano, entered by Matt Carrano on 30.08.2010