Ordovician Jesse Russell

ISBN: 9785510988475

Published: July 19th 2012

Paperback

92 pages


Description

Ordovician  by  Jesse Russell

Ordovician by Jesse Russell
July 19th 2012 | Paperback | PDF, EPUB, FB2, DjVu, talking book, mp3, RTF | 92 pages | ISBN: 9785510988475 | 3.11 Mb

High Quality Content by WIKIPEDIA articles! The Ordovician (pronounced / rd v n/) is a geologic period and system, the second of six of the Paleozoic Era, and covers the time between 488.3 1.7 to 443.7 1.5 million years ago (ICS, 2004). It followsMoreHigh Quality Content by WIKIPEDIA articles!

The Ordovician (pronounced / rd v n/) is a geologic period and system, the second of six of the Paleozoic Era, and covers the time between 488.3 1.7 to 443.7 1.5 million years ago (ICS, 2004). It follows the Cambrian Period and is followed by the Silurian Period. The Ordovician, named after the Celtic tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same rock beds in northern Wales into the Cambrian and Silurian periods respectively. Lapworth, recognizing that the fossil fauna in the disputed strata were different from those of either the Cambrian or the Silurian periods, realized that they should be placed in a period of their own.



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