Smithsonian Miscellaneous Collections
Format: Paperback
ISBN13: 9780217995627
Paperback|9780217995627
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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CONTENTS. PAGB. Introduction 1 Description of Genera and Species, with a Discussion of their Genetic Relationships 7 A. The genus Fusus 7 1. Eocene species of Fusus 11 2. The Fusus colus series iS 3. Fusus luberculatus and its allies 3 4. The Fusus distans series 36 5. The Fusus longissimus series 4 6. The Fusus beckii series 43 7. Fusus dupetit-thouarsii and its allies 46 8. The Fusus longirostris series 52 9. The Fusus rostratus series 5 10. The .Fusus australis series 65 ir. Species of Fusus, whose precise relations are undetermined 72 B. Species of Fusoid shells generally referred to Fusus 7 12. The Genus Aptyxis 78 13. Eocene species generally referred to Fusus 80 14. The genus Heilprinia (gen. nov.) 87 15. The genus Euthriofusus 93 C. Phylogerontic Fusida 96 16. The genus Cyrtulus 96 17. The Eocene Clavilithoids' 98 Geographical distribution 145 Literature: 153 Description of plates I-XVIII 160 PHYLOGENY OF FUSUS AND ITS ALLIES. BY AMADEUS W. GRABAU. INTRODUCTION. The phylogeny of Gastropoda has received but little attention from students of Mollusca, who have either confined themselves to the study of faunas, and to specific description, or have investigated problems in connection with the ontogeny of individual members of one or more phyletic series. Besides the classical memoir of Hyatt, on the Tertiary species of Planorbis at Steinheim, only two other important works which are devoted to a study of the serial development of phyletic groups have come to my notice. These are Koken's Entwickelung der Gastropoden vom Cambrium bis zur Trias, and an elaborate paper by the countess Maria von Linden, in which she traces the development of several genera of recent gastropoda including ...
| ISBN-13 | 9780217995627 |
|---|---|
| ISBN-10 | 0217995624 |
| Weight | 0.82 Pounds |
| Dimensions | 9.00 x 6.00 x 0.56 In |
| List Price | $26.27 |
| Format | Paperback |
|---|---|
| Pages | 248 pages |
| Publisher | |
| Published On | 2009-08-01 |
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