TY  - BOOK
AU  - Wingard,G.Lynn
TI  - 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
T2  - U.S. Geological Survey professional paper
AV  - QE812.V45 W56 1993
U1  - 564/.11 20
PY  - 1993///
CY  - Washington, Denver, CO
PB  - U.S. G.P.O., For sale by U.S. Geological Survey, Map Distribution
KW  - Crassatellidae
KW  - United States
KW  - Local
KW  - Paleontology
KW  - Cretaceous/Tertiary boundary
KW  - Tertiary
KW  - Cretaceous
N1  - Spine title: Cretaceous and Tertiary Crassatellidae, eastern United States; Includes bibliographical references (p. 96-104)
ER  -