See more from this Division: Topical Sessions
See more from this Session: Breaking the Curve: Historical Development, Current State, and Future Prospects for Understanding Local and Regional Processes Governing Global Diversity II
Abstract:
Based on an analysis of first and last appearance data for Cretaceous inoceramid bivalves in the U.S. Western Interior Seaway and Cretaceous-Oligocene turritelline gastropods in the U.S. Gulf and Atlantic Coastal Plains, we conclude that sea-level change is an important influence on speciation, but that it is neither necessary nor sufficient to cause speciation, at least in these groups. A more explicit framework for analyzing the process and causes of speciation points in these cases to different causal factors being most important at different times.
See more from this Division: Topical Sessions
See more from this Session: Breaking the Curve: Historical Development, Current State, and Future Prospects for Understanding Local and Regional Processes Governing Global Diversity II