Cenozoic snails, photos, thomas wiewandt, tom wiewandt, images, photographs, photography, gallery, arts
T
h o m a s W i e w a n d t
PREHISTORIC
LIFE
8
of 18
Shells
of these early Cenozoic
snails, Turritella mortoni, filled
with mud and dissolved away
leaving stone casts of
their interiors (steinkerns). These
fossils were found in Maryland
by the Potomac Museum Group.
