Brewster-Wingard, G. L. (1993). A detailed taxonomy of Upper Cretaceous and Lower Tertiary Crassatellidae in the Eastern United States: An example of the nature of extinction at the boundary ; a detailed qualitative and quantitative taxonomic analysis of the Crassatellidae (Mollusca, Bivalvia) at the Cretaceous-Tertiary boundary demonstrates the inaccuracy of the published fossil record. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Brewster-Wingard, Georgiana Lynn. A Detailed Taxonomy of Upper Cretaceous and Lower Tertiary Crassatellidae in the Eastern United States: An Example of the Nature of Extinction at the Boundary ; a Detailed Qualitative and Quantitative Taxonomic Analysis of the Crassatellidae (Mollusca, Bivalvia) at the Cretaceous-Tertiary Boundary Demonstrates the Inaccuracy of the Published Fossil Record. Washington: US Gov. Print. Off, 1993.
MLA-Zitierstil (9. Ausg.)Brewster-Wingard, Georgiana Lynn. A Detailed Taxonomy of Upper Cretaceous and Lower Tertiary Crassatellidae in the Eastern United States: An Example of the Nature of Extinction at the Boundary ; a Detailed Qualitative and Quantitative Taxonomic Analysis of the Crassatellidae (Mollusca, Bivalvia) at the Cretaceous-Tertiary Boundary Demonstrates the Inaccuracy of the Published Fossil Record. US Gov. Print. Off, 1993.