The 2.50 m (8 ft 4 in) tall
creature resembled a rhinoceros, possessing a forked (in a Y, or slingshot
shape), horn-like protrusion on its nose, with blunt ends. Many Brontotherium
remains have been found in South Dakota and Nebraska. In the past, specimens
exposed by severe rainstorms were found by Native Americans of the Sioux tribe.
The Sioux believed these creatures produced thunderstorms when running over the
clouds, and called them 'thunder horses'. Many of the skeletons found by the
Sioux belonged to herds which were killed by volcanic eruptions of the Rocky
Mountains, which were volcanically active at the time.
Last Modified 04/12/2012
(Click Photo to Enlarge)
Name: Brontotherium
Geologic Age: Oligocene (25 Million Years Old)
Stratigraphic detail: Chadron Formation
Location: White River Badlands, South Dakota
Description: This is a nice, BIG Rooted Tooth from the extinct "Thunder Beast" of the Oligocene... The enamel and chewing surfaces are very nice.. the root is complete with a MINOR amount of crack repair.. VERY RARE TOOTH!!!
Brontotherium Tooth 1 $425.00
(Click Photo to Enlarge)
Name: Brontotherium
Geologic Age: Oligocene (25 Million Years Old)
Stratigraphic detail: Chadron Formation
Location: White River Badlands, South Dakota
Description: This is a nice, BIG Rooted Tooth from the extinct "Thunder Beast" of the Oligocene... The enamel and chewing surfaces are very nice.. the root is complete with a MINOR amount of crack repair.. VERY RARE TOOTH!!!
Brontotherium Tooth 2 $425.00
(Click Photo to Enlarge)
Name: Brontotherium
Geologic Age: Oligocene (25 Million Years Old)
Stratigraphic detail: Chadron Formation
Location: White River Badlands, South Dakota
Description: This is a nice, BIG Rooted Tooth from the extinct "Thunder Beast" of the Oligocene... The enamel and chewing surfaces are very nice.. the root is complete with a MINOR amount of crack repair.. VERY RARE TOOTH!!!
Brontotherium Tooth 3 $425.00
(Click Photo to Enlarge)
Name: Brontotherium
Geologic Age: Oligocene (25 Million Years Old)
Stratigraphic detail: Chadron Formation
Location: White River Badlands, South Dakota
Description: This is a nice, BIG Rooted Tooth from the extinct "Thunder Beast" of the Oligocene... The enamel and chewing surfaces are very nice.. the root is complete with a MINOR amount of crack repair.. VERY RARE TOOTH!!!
Brontotherium Tooth 4 $575.00
