Bretton W. Kent

NATURAL HISTORY OBSERVATIONS ON THE BUSYCONINE WHELKS BUSYCON CONTRARIUM (CONRAD) AND BUSYCOTYPUS SPIRATUM (LAMARCK)

Bretton W. Kent, 1983 .

Patterns of coexistence in busyconine whelks

Bretton W. Kent, 1983 .

The transition between Carcharocles chubutensis and Carcharocles megalodon (Otodontidae, Chondrichthyes): lateral cusplet loss through time

J. Nance, R. Weems, Victor J. Perez, 2018, Journal of Vertebrate Paleontology.

The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA

P. Vogt, G. Carnevale, D. Domning, 2018, Smithsonian Contributions to Paleobiology.