-
Gryphaea, one of the
genera known as devil's toenails, is a
genus of
extinct oysters,
marine bivalve mollusks in the
family Gryphaeidae.
These fossils...
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Gryphaea arcuata is an
extinct species of foam oyster, a
bivalve mollusc in the
family Gryphaeidae from the
Early Jur****ic of Europe. It is
commonly referred...
- of individuals. It is
closely related to the
similar species Gryphaea dilobotes.
Gryphaea arcuata Jur****ic
Coast http://piclib.nhm.ac.uk/piclib/www/image...
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Montage of
animal fossils.
Clockwise from top left:
Onychocrinus and Palaeosinopa;
bottom row:
Gryphaea and Harpactocarcinus...
- 2013-02-21.
Retrieved 2009-02-11.
Lexicon of
Canadian Geologic Units. "
Gryphaea Bed".
Archived from the
original on 2013-02-22.
Retrieved 2009-02-11. Lexicon...
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together as one. At the top of the
shield are two
fossils of the
species Gryphaea incurva.
These remains of oysters,
known as the "devil's toenails", were...
- ISBNÂ 978-0-393-01380-1 1980. Gould,
Stephen Jay (December 1980). The
Evolution of
Gryphaea. New York: Arno Press. ISBNÂ 978-0-405-12751-9. 1981. The
Mismeasure of...
- the Mull volcano. Near the loch s****line,
today are
fossil oysters, or
Gryphaea, that
lived on the s****line of a
tropical sea here 200
million years ago...
- Jur****ic of
Southern England. He also
published work on the
evolution of
Gryphaea, an
extinct species of oyster. He was
awarded a PhD in 1959 for a thesis...
- crocodiles, ichthyosaurs,
cephalopods (such as belemnites),
bivalves (such as
Gryphaea), and a
variety of gastropods.
Dinosaur eggs are
stratigraphically present...
