Lockwood: Late Cretaceous Molluscan Abundance Data (Sohl %26amp; Koch)

Dataset contains abundance data for fossil mollusk genera from the Late Cretaceous of the U.S. Coastal Plain published by Sohl and Koch (1983, 1984, 1987). Also contains global stratigraphic ranges, global geographic ranges, and taxonomic information for genera, downloaded from the Paleobiology Database (PBDB) in February 2008. Used to examine the link between rarity and extinction across the end-Cretaceous mass extinction in Coastal Plain mollusks.