What caused the virtually simultaneous demise of mammoths, mastodons and saber-toothed cats, not to mention native horses, ground sloths
, native camels, armadillo-like glyptodonts, giant peccaries, mountain deer, giant beavers, four-pronged antelopes, dire wolves, native lions and giant short-faced bears?
Taxon Dust Sloth Confidence cave caves Shasta ground sloth
- X 1 (Nothrotheriops shastensis) Prairie dog (Cynomys) * X X 1 Gunnison's prairie dog - cf.
describes the teeth and postcranial elements of juvenile and adult ground sloths
that lived some 400-450 thousand years ago in the state's Coastal Plain.
Gigantic prey creatures like the 18-foot tall giant ground sloth
were heavily armed with savage claws and were pretty much untouchable.
Roughly the size of a Volkswagen Beetle, the prehistoric Shasta ground sloth
ate the leaves, seeds, and fruits of the plant, traveled great distances, and, along the way, passed the seeds through its digestive system, fertilizing them with its manure.
Both the outer and inner layers of dentine from the ground sloth
, Paramylodon harlani, show [[delta].
The remains included several Egyptian mummies and two extinct species -- the marsupial wolf and ground sloth
From the well-known saber-toothed tiger and wooly mammoth to the obscure--but equally amazing--giant ground sloth
, 100 mammals are showcased vividly in full color.
One of the ice age animals these cats preyed on was the ground sloth
At the end of the last ice age, near what is now Las Vegas, early Americans left evidence of having dined on Nothrotherium, a now extinct seven-foot ground sloth
Found by society member and co-author Matthew Burr, the bones were from a Jefferson's Ground Sloth
During the Ice Age, mammals such as Harlan's ground sloth
, the Colombian mammoth and the American lion would have wandered through the area.
Adults of some ground sloth
species approached 5 meters in length.
ONE million years ago, the Earth was inhabited by an array of bizarre creatures including the giant ground sloth
, terror birds, giant armadillos and the mighty sabre-toothed cat.
Anthropologist Paul Martin believes that the extinction of the mammoth, mastodon, ground sloth
, and the saber-toothed cat directly or indirectly resulted from the "prehistoric overkill" by exceptionally competent hunters.