This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!

A detailed qualitative and quantitative taxonomimc analysis of the Crassatellidae (Mollusca, Bivalvia) at the Cretaceous-Tertiary boundary demonstrates the inaccuracy of the published fossil record.