| Abstract: | The first part of this synthesis summarizes the morphology of the jelly layers surrounding an amphibian ovum. We propose a standard terminology and discuss the evolution of jelly layers, The second part reviews the morphological diversity and arrangement of deposited eggs - the oppositional mode; we recognize 5 morphological classes including 14 modes. We discuss some of the oviductal, ovipositional, and postovipositional events that contribute to these morphologies. We have incorporated data from taxa from throughout the world but recognize that other types will be discovered that may modify understanding of these modes. Finally, we discuss the evolutionary context of the diversity of clutch structure and present a first estimate of its evolution. ?? 2007 by The Herpetologists‘ League, Inc. |
| Genre: | Article |
| ProdID: | 70031355 |
| Citation Author: | Altig, R.; McDiarmid, R. W. |
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| Citation End Page: | 32 |
| Citation Issue: | 21 |
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| Citation Language: | English |
| Citation Larger Work Title: | Herpetological Monographs |
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| Citation Number Of Pages: | 32 |
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| Citation Search Results Text: | Morphological diversity and evolution of egg and clutch structure in amphibians; 2007; Article; Journal; Herpetological Monographs; Altig, R.; McDiarmid, R. W. |
| Citation Start Page: | 1 |
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| Citation Year: | 2007 |
| Type: | citation/reference |
| Text: | Morphological diversity and evolution of egg and clutch structure in amphibians; 2007; Article; Journal; Herpetological Monographs; Altig, R.; McDiarmid, R. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 2007 00:00 -0600 |
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