Placenticeras meeki, 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
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Like a Mesozoic jigsaw puzzle, these interlocking layers of shell reveal a pattern of growth by the
ammonite Placenticerasmeeki.
This 80 million-year-old fossil was found in South Dakota by Japheth Boyce.