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Review of the Pelycosauria

Alfred Sherwood Romer and Llewellyn Ivor Price
Review of the Pelycosauria
Special Paper - Geological Society of America (December 1940): 538 pp.


PREFACE The Pelyeosauria, or Theromorpha, of the late Paleozoic, reptiles particularly characteristic of the Permo-Carboniferous redbeds of the American Southwest, form a group of major importance in the history of land vertebrates. As first recognized by Cope, they represent an early stage in the beginning of mammal-like forms. They are also the dominant types in the oldest adequately known reptilian fauna and possess many archaic features which illustrate the structure of the primitive reptilian stock. Most of the earlier work on pelycosaurs was done by Cope. He realized the significance of the material, but his brief and often inadequate descriptions and meager illustrations failed to give the group the scientific prominence it deserved. A decade of work on the group by Case culminated in the publication in 1907 of his Revision of the Pelyeosauria of North America. Case figured most of the important material then known, straightened out many taxonomic snarls, and gave the first account of the general structure of a number of the more adequately represented types. Through the influence of this work, the pelycosaurs were at length generally accorded a place of importance among fossil vertebrates. This earlier period of the study of the pelycosaurs occupied essentially 3 decades. Since Case"s 1907 work increases in our knowledge have been slow. The paucity of material of even the most common types necessitated the leaving of lacunae in Case"s descriptions, few of which have since been filled. Many new data have been obtained, but little has . . .

ISSN: 0072-1077
EISSN: 2331-219X
Serial Title: Special Paper - Geological Society of America
Title: Review of the Pelycosauria
Author(s): Romer, Alfred Sherwood
Author(s): Price, Llewellyn Ivor
Published: 194012
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 978-0-81372-028-9
Number of pages: 538
Accession Number: 1949-014293
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Monographic
Illustration Description: illus.
Source Note: 28, x
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1949
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