Dinosaur Systematics: Approaches and Perspectives
Dinosaur Systematics: Approaches and Perspectives
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DOI:
10.1016/0012-8252(92)90082-5
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发表时间:
1992-07
期刊:
影响因子:
--
通讯作者:
K. Carpenter;P. Currie
中科院分区:
文献类型:
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作者:
K. Carpenter;P. Currie
If dinosaurs, or any other groups of extinct organisms, are to be studied as the living creatures they once were, the systematics of the extinct and living must be consistent. This extends to the level of species, viewed as the basic building blocks of systematics. This is the basic concept around which the symposmm reported in this volume was organized. The symposium entitled" The Dinosaur Systematic Symposium" was held in 1986 at the Tyrrell Museum of Paleontology, Drumheller, Alberta, Canada. Thirteen of the twenty eight papers presented form the core of the book. The symposium was dedicated to Charles C. Sternberg and a Foreword by Loris Russell reviews his work on the dinosaurs of Alberta, Canada. Following is a short Preface in which the purpose of the symposium is stated to be to examine sexual dimorphism, ontogeny, individual, variation and any other factors that may influence the taxonomic designation of a particular specimen of dinosaur. In the Introduction entitled" Systematics and Morphological Variation" by Carpenter and Currie the recurrent theme of variation is set in context. It is an extended review of the role that variation has played in the development of dinosaur systematics as the numbers and varieties of specimens have increased and concepts have changed as dinosaurs have come to be studied from a more strictly biological point of view. Each of the thirteen papers published in this book was peer reviewed and most were modified and updated following the original presentations. Some attack the central theme of the symposium expressed in the Preface directly, others tangentially, and some almost not at all. They are arrayed in nine sections or chapters. The first, Methods, includes two papers. The first of these, Clades and grades in dinosaur systematics, Paul Sererno analyzes in some detail the uses that have been made of each two approaches in studies of dinosaur and presents the bases for his support of a strictly cladistic system in dinosaur systematics. In the second paper, Shape analysis in the study of dinosaur morphology, Ralph E. Chapman explains and illustrates morphometric and shape analysis by analyses of carnosaur crania, of ontogeny in Bagaceratops, of sexual dimorphism in Protoceratops, of asymmetry in Plateosaurus plus a complex analysis of crania of several genera of pachycephalosaurids. Morphometrlc techniques are also used in a study of Plateosaurus by Weishampel and Chapman in section II and by Goodwin in his analysis of pachycephalosaurid cranial material in section V. Sections II through VIII treat in sequence systematic problems of taxa within the Sauropodomorpha, Theropoda, Ornithopo-