In beach drift, Panama City Beach,
Bay County, Florida (3.0 mm.). Digital image by Lori Schroeder.
Beach drift, Shackleford, North Carolina
(3.5 mm.). Digital image by David Kirsh.
Scanning Electron Micrograph (SEM) of fossil specimen
Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (2.32
mm.).
SEM produced in collaboration with Dr. Ann Heatherington, Dept. Geological
Sciences,
University of Florida, Gainesville, FL.