Author: David M. Delo
From the original introduction: The phacopid trilobites form a widely diverse group which first appeared in North America during the early Chazyan (Lenoir limestone). From then until the close of the Hamilton, they form an element in almost all faunas, and an occasional straggler extends their range into the Chemung. Their history in North America, therefore, is shorter than in Europe, where they first appeared in the early Ordovician and continued into the early Mississippian. Little is known of their history in other parts of the world, although members of the group are found in the Paleozoic strata of Burma, Australia, and China, and form a prominent element in the Devonian faunas of South Africa and South America.
Published: 12/31/1940
ISBN Number: 9780813720296
Pages: 143
Product Category: EBooks
