Where: Hill County, Montana (48.9° N, 110.6° W: paleocoordinates 56.2° N, 76.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: McClelland Ferry Member (Judith River Formation), Middle Campanian (83.5 - 70.6 Ma)

• approx. 77.5 Ma

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1992-2002; reposited in the TMP

Collection methods: quarrying, mechanical,

• some privately collected, other material in Tyrrell Museum and Wyoming Dinosaur Center collections

Primary reference: F. Sweeney and W. M. Boyden. 1993. A first report of the southern most occurrence of the ceratopian dinosaur, Styracosaurus albertensis, the first found in the United States. Journal of Vertebrate Paleontology 13(3, suppl.):59A [M. Carrano/M. Carrano/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69152: authorized by Matthew Carrano, entered by Matthew Carrano on 20.02.2007

Creative Commons license: CC BY (attribution)