NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Fossil coleoid (Acanthoteuthis). Coleoids are soft-bodies cephalopods. The ink sac (black) is visible in this 15 centimetres long, exceptionally preserved specimen. It dates to the Jurassic period and was found in Wiltshire, UK. Natural History Museum, London, UK.
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