Species: Tyrannosaurus rex
Composited Fully Mounted Skeleton
Skeleton: 45% complete (135/300)
Skull: 44.44% complete (24/54)
Hell Creek Formation (MT)/ Lance Creek Formation (WY)
Garfield Co. Montana/ Weston Co. Wyoming
Late Cretaceous (Maastrichtian)
Collection Date: (2012-2014)
Introduction

Specimen TE-036, nicknamed “Roosevelt” is a premium quality composited example of the “Tyrant Lizard King,” Tyrannosaurus rex. It is named for President Franklin D. Roosevelt, after two partial T. rex specimens were discovered south of Fort Peck Lake, a monumental hydroelectric dam project constructed by the Army Corp of Engineers under FDR’s New Deal in 1940. Garfield County, Montana, which lies in the shadow of the reservoir, has produced some of the highest quality specimens of Tyrannosaurus rex that have been recovered. “Roosevelt” takes his place alongside composite T. rex specimens including those exhibited at the American Museum of Natural History and the Natural History Museum in London, UK. “Roosevelt” is truly a beautiful and exciting display specimen, fully prepared and mounted for exhibition.

Representation

All fossils recovered have been fully cleaned and stabilized for mounting. Bones are of a very good quality overall, exhibiting beautiful detail, solid outer surfaces, and a natural dark brown patina common to fossils recovered from iron rich geological formations such as the Hell Creek and Lance Creek Formations.

– Overall skeleton: 45% complete (135/300) with representative material from all skeletal regions

– Skull count: 44.44% complete (24/54) with skull material from one site

– Postcranial skeleton: 45% complete (111/246)

Geology
“Roosevelt” was compiled with material from three partial Tyrannosaurus rexspecimens recovered in Montana and Wyoming. All three sites were comprised of a similar matrix, largely clay/ mudstone, which is generally indicative of a slow moving aqueous environment. Although the specimens and their respective sites were quite remote from one another, the similar conditions of preservation and overall size have made the materials a natural fit for a composite skeleton. Absent bones are replaced with high quality replica.

Locality
TE-036 contains Tyrannosaurus rex fossils from two of the post prestigious geological formations in which T. rex fossils are recovered. The Lance Creek Formation of northeastern, Wyoming and the Hell Creek Formation of eastern Montana share similar geology and faunal species due to the relative age of their respective sedimentary layers.

Age
The material composited to complete TE-036 dates to the Maastrichtian age of the Late Cretaceous epoch, roughly 72 – 65.5 million-years ago. Tyrannosaurus rex was among the last of the dinosaurs extant at the time of the extinction which abruptly ended the Cretaceous.

Dimensions
Mounted specimen measures:
38ft (l) x12ft (h) x 10ft (w)

Skull measures: 54in (l)

Mount base footprint measures:
32 (l) x 8ft (w)

Systematics
Order: Saurischia
Family: Tyrannosauridae
Subfamily: Tyrannosaurinae
Genus: Tyrannosaurus
Species: rex

Purchase Includes
– Applicable quarry Maps
– Inventory lists of all collected material
– All field and labratory photos
– All field and labratory notes
– GPS location data
– All legal documentation including signed lease agreement