Species: C. nefrens
Author Citation Ward and Blackwelder, 1975
Geological Time Scale
BiostratigraphyShattuck Zone 17
Date Collected: 04/19/2016
Acquired by: Field Collection
Chesapectin nefrens is an index fossil for the Drum Cliff Member of the Choptank Formation. This example is particularly nice because the interior is almost completely layered in pearl.