Kategoria BISAC: Nature >> Fossils

The record of man's early evolution, though still fragmentary, is more complete on the African continent than anywhere else in the world. The ecological context of this evolution, however, has been studied intensively only in recent years. This pioneering volume draws together eminent specialists from many fields--physical anthropologists, zoologists, geologists, paleontologists, and prehistorians--who summarize here the results of their diverse research on Pleistocene environments and the cultural and biological evolution of man in Africa.

This volume was sponsored by the...

From 1907 to 1931 at Tendaguru, a remote site in present-day Tanzania, teams of German (and later British) paleontologists unearthed 220 tons of fossils, including the bones of a new dinosaur, one of the largest then known. For decades the mounted skeleton of this giant, Brachiosaurus, was the largest skeleton of a land animal on exhibit in the world. The dinosaur and other animal fossils found at Tendaguru form one of the cornerstones of our understanding of life in the Mesozoic era. Visited sporadically during the '30s and '40s, Tendaguru again became the site of scientific interest late...

The American horseshoe crab that comes ashore on the East Coast in vast numbers to mate and nest is much the same creature that haunted the coast before the time of the dinosaurs. It is among the world's most intensely studied marine invertebrates, critical to our understanding of many groups of organisms, both modern and extinct, and crucial to the ecology of large estuaries such as the Delaware Bay. Some stocks of this great survivor, whose ancestors made it through the mass extinction some 286 million years ago, have been severely depleted today because of overfishing and habitat...