Fossil crinoid (Pterocoma). This now extinct genus of crinoids is found in late Jurassic and early Cretaceous deposits in Europe and North America. Cr

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Fossil crinoid (Pterocoma). This now extinct genus of crinoids is found in late Jurassic and early Cretaceous deposits in Europe and North America. Crinoids, popularly known as sea-lilies, belong to a phylum known as Echinodermata. They have lived, in different forms, throughout the geological record from Palaeozoic times up to this day. Actual height of specimen is 210 mm.

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Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: cretaceous, crinoid, earth, echinodermata, extinct, fossil, jurassic, lily, palaeontology, paleontology, pterocoma, sciences, sea