Also known as Tyrannosaurus rex type

Where: Dawson County, Montana (48.3° N, 105.8° W: paleocoordinates 54.8° N, 78.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lance Formation, Maastrichtian (70.6 - 65.5 Ma)

• 220 feet above Ft. Pierre in the "true Laramie"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, concretionary sandstone

Size class: macrofossils

Preservation: concretion

Collected by B. Brown in 1902; reposited in the AMNH

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

Primary reference: H. F. Osborn. 1905. Tyrannosaurus and other Cretaceous carnivorous dinosaurs. Bulletin of the American Museum of Natural History 21(14):259-265 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49005: authorized by Matt Carrano, entered by Matt Carrano on 05.04.2005

Creative Commons license: CC BY (attribution)