Lockley, M. G. and Hunt, A. P. 1994. A track of the giant theropod dinosaur Tyrannosaurus from close to the Cretaceous/Tertiary Boundary, northern New Mexico. Ichnos 3:213-218.
The track was discovered by Charles Pillmore in the Raton Formation near Cimmaron, New Mexico. It occurs about 20 m below the K/T Boundary. The track is a tetradactyl cast of a right pes footprint and was named Tyrannosauripus pillmorei by Lockley and Hunt. An impression of the hallux was preserved and indicates that the trackmaker was a theropod. Lockley and Hunt attribute the track to T. rex based on the large size (pedal track length 86 cm) and age (late Maastrichtian). Lockley and Hunt estimated a speed of 11.5 km per hour using Alexander's formula and a minimum stride length of 5.6 m.
Martin Lockley, Paul R. Janke & Mike Triebold. 2011. TrackingTyrannosaurus: Notes on Purported T. rex Tracks. Ichnos 18 (3):172-175.
On March 30, 2021 at 8:42 AM Gregory Paul <gsp1954@aol.com> wrote:
If anyone has link to or copy of Lockley, M. G.; Hunt, A. P. (1994). A track of the giant theropod dinosaur Tyrannosaurus from close to the Cretaceous/Tertiary Boundary, northern New Mexico. Ichnos, 3(3): 213-218 please send along.
GSPaul