NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Brittlestar (Ophioderma egertoni) fossil. A brittle star is a marine invertebrate that is related to starfish. It has five flexible arms radiating from a central disc-shaped body, which means that unlike starfish it can use its arms to walk on the sea floor. This specimen dates from the Middle Lias of the Jurassic, around 195-189 million years ago. It was found in Bridport, Dorset, UK.
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