Genus: Tyrannosaurus OSBORN, 1905
T. rex OSBORN, 1905

Referred material:

 

Locality: Maurice Williams’s Ranch, Cheyenne River Indian Reservation, near Faith, Hill City, South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

FMNH PR2081 (former Black Hills Institute of Geological Research “Sue” 2033): Skull and skeleton. With pathologies, 2 broken fibula, broken ribs with a tyrannosaur tooth in one, 2 broken caudal vertebrae, injured lower jaw with malformed double cusped tooth, and the top of the skull with tooth marks across it.
Note: Possible half a furcula BROCHU, 2003

 

LARSON & RIGBY, 2005

Locality: On the ranch of Wade and Loren Derflinger, Perkins County, South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

CMI 2001.90.1: Fragmentary skeleton (nicknamed Bucky).

Note: Furcula.

Locality: Near Fort Peck, Montana.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

MOR 980: Skull and skeleton.

Note: Furcula.

 

LIPKIN, & SERENO, 2004, LIPKIN, SERENO & HORNER, 2007

Locality: Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

UCRC V1: Articulated postcranial skeleton.

Note: Has furcula.

SCHWEITZER, WITTMEYER & HORNER, 2005, LARSON, N., 2008

Locality: Near Fort Peck Lake, Charles M. Russell National Wildlife Refuge, Garfield County, Montana.

Horizon: Base of the Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, lower Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

MOR 1125 (Bob, B-rex): Both premaxilla, dentary, plus a few other skull bones, 3 cervical, 4 dorsal, 5 sacral, 12 caudal vertebrae, 7 chevrons, 4 cervical, 13 dorsal ribs, left scapula, left coracoid, furcula, left ulna, both femora, tibiae, fibulae, right calcaneum, right astragalus, and 11 pes phalanges.
Note: Soft tissue from the marrow of a left femur shows it is a female (SCHWEITZER, WITTMEYER & HORNER, 2005).

Note: Has skin impressions around the femur (SCHWEITZER, WITTMEYER & HORNER, 2004).