Roger Weller, geology instructor
wellerr@cochise.edu copyright 2011-R.Weller
Docinia-1
St. Marys Formation, Calvert Cliffs State Park, Maryland
Widths range from 4 to 7 cm.
docinia
16
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
Fossil and identification courtesy of Larry Hampton