Based on the work of Samuel Wendell Williston and Dr. W.K. Gregory, author and editor of the original title published in 1925, this volume consists of two major parts - a structure-by-structure account of the reptile skeleton, followed by a classification of the various reptile groups based on osteological characters. This update isdesigned to give, in outline form, an account of the nature of the skeletal system of numerous reptile types both living and extinct.
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Study of the osteology of extant forms, primarily morphological in focus but with some chapters stressing development, functionality or phylogeny. Topics include: a comparison of dermal skulls of recent amphibians with those of their palaeozoic ancestors; whole bones of the 3 orders of modern amphibians; salamanders; caecilians; anurans.
|Author||: Paul Schultz Martin|
|Release Date||: 1958|
|Pages||: 102 pages|
|Author||: Alexander Grant Ruthven|
|Release Date||: 1907|
|Pages||: 121 pages|
|Author||: J. Hill Hamon|
|Release Date||: 1964|
|Pages||: 210 pages|
The order Passeriformes (perching birds) includes over half of the 8,650 species of birds known in the world today, little is known about their fossil record. Only 32 extinct passerine species have been described, as compared with 801 extinct non-passerine forms.