GD10000
Oligocene Entelodont
Archaeotherium sp.
South Dakota
30-34 million years
Measures 64 x 40 x 30 inches
The skull is 19 inches long. All teeth are original. Approximately 60% of the original skeleton is present. These animals belong to the Artiodactyls group and is distantly related to the modern pig. The skull is long and has two large bony protrusions behind the eye and several smaller ones on the lower jaw. Over the shoulders the dorsal spines are huge, giving it a large hump over the back. Displaying large crushing teeth, its large head allowed for more muscle attachment to the neck, helping it to crush bone.
$75,000

GDL393001
Fossil Horse Skull
Mesohippus bardi
South Dakota, USA
Oligocene
8 inches
An ancient horse, Mesohippus is an early member of the perissodactyls (odd-toed) Equid family. It stood only about two feet in height. Displaying impressive tooth preservation, this skull is prepared from both sides and mounted on a custom wooden base.
$2300

ARK110
Robust Mammoth Tusk
Mammuthus primigenius
Siberia, Russia
30,000 years
96 inches
Approximately 30,000 years old, this robust mammoth tusk displays a classic double curve. The virtually complete tusk with root and natural tip has been polished to reveal the beautiful colors produced by mineralization during its burial in the frozen peat of Siberia. Woolly Mammoths are an extinct species of Proboscidae and are related to the modern elephant.
SOLD

GDAR11260602
Woolly mammoth Skeleton
Mammuthus primigenius
Siberia, Russia
Pleistocene
16 feet 5 inches
Measuring an astounding 11 1/2 feet in height, this specimen represents one of the largest Woolly Mammoths ever discovered. Entombment for thousands of years in the Siberian permafrost has produced its distinctive brown patina. An extinct ancestor to todays elephant that ranged throughout Eurasia and North America during the Pleistocene, Woolly Mammoths were a very successful species. Using their long, curved tusks to sift the snow to forage for vegetation, and possessing long, thick coats and ample body fat, Woolly Mammoths were well adapted to the frozen wastelands of the last Ice Age. The males may have also used their tusks in intraspecies combat or competition for females. Scientists speculate that human hunting may have been partly responsible for their extinction. The specimen is 80% from an individual animal.
SOLD

GDB052707
Fossil Horse Skeleton
Mesohippus bardi
South Dakota, USA
Oligocene
42 inches
Mesohippus is an early member of the Perissodactyls Equid family. It had 3 toes on its feet. It was a small animal standing about 2 feet high. Its face was longer than earlier equids. The teeth were larger and more plentiful. Its brain was larger than its predecessors and more like that of a modern horse. This specimen is a fully mounted skeleton with some restoration. Mounted on a custom metal stand.
$25,000