Where: Fergus County, Montana (47.8° N, 108.9° W: paleocoordinates 54.6° N, 74.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Eagle Sandstone Formation (Montana Group), Campanian (83.6 - 72.1 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by J. B. Hatcher in 1888; reposited in the USNM
Collection methods: surface (float), surface (in situ),
• now lost
Primary reference: O. C. Marsh. 1890. Description of new dinosaurian reptiles. The American Journal of Science, series 3 39:81-86 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 52873: authorized by Matthew Carrano, entered by Matthew Carrano on 25.08.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Ornithomimus grandis n. sp.
Ornithomimus grandis n. sp. Marsh 1890 tyrannosaurid |