Where: Brewster County, Texas (29.2° N, 103.2° W: paleocoordinates 35.6° N, 76.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Aguja Formation, Judithian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: interdistributary bay; gray, carbonaceous claystone

Size class: macrofossils

Reposited in the TMM

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: T. M. Lehman. 1989. Chasmosaurus mariscalensis, sp. nov., a new ceratopsian dinosaur from Texas. Journal of Vertebrate Paleontology 9(2):137-162 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52462: authorized by Matthew Carrano, entered by Matthew Carrano on 08.08.2005

Creative Commons license: CC BY (attribution)