29 
HALL 60. 
CENTER OF HALL. — Restoration of Megatherium Cu- 
vierx, or ancient sloth. This was a South American Edentate ofr 
the Quaternary epoch, which had one hundred times the bulk of 
any living species of this order. The genus had a wide range 
during this period, as shown by its bones being found as far- 
north as South Carolina. The species here shown was a huge, 
clumsy beast, its enormous femur, three times as thick as an 
elephant’s, being used for supporting the animal while with its 
fore limbs it tore down branches of trees for food. 
SOUTHWEST CORNER.— Restoration of Colossochelys 
atlas, a huge turtle which lived in India during the Tertiary 
period. 
NORTHWEST CORNER.— Skeleton of an Irish Deer, 
from Limerick, Ireland — 2 , large Post-Pliocene deer, the bones 
of which are occasionally found in marl beneath peat beds in 
Ireland and England. The antlers of this animal have a spread 
of seven feet, and its height was nearly eight feet. 
NORTHEAST CORNER. — A restoration showing the jaws- 
of Carcharodon, and within these, for comparison, the jaws of 
a modern shark. The Carcharodon was probably 50 to 70 feet 
in length. 
SOUTHEAST CORNER. — Cast of skull of Dinotherium. 
This was a huge herbivorous animal remarkable for two long- 
tusk-like teeth, projecting downwards. It combined in its char- 
acters and habits some features of the elephant, hippopotamus, 
tapir and dugong. 
SOUTH ALCOVE. — Group of Daemonelix or “Devil’s 
Corkscrews.” Daemonelix is a corkscrew-like fossil found in 
great quantities over the plains and among the strata of north- 
western Nebraska. Its exact nature is problematical but the 
most widely accepted view is that it represents the remains of' 
aquatic plants. According to another theory natural casts of 
ancient mole burrows form the fossil. The series shown is- 
thoroughly representative, and includes specimens showing sup- 
posed stages in the development of the form. 
WEST ALCOVE. — Invertebrate fossils of the Quaternary- 
period. Prominent among these are large shells of Ostrea or- 
