Photos: Ancient Marine Critter Had 50 Legs, 2 Large Claws

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Closer examination

ancient marine critter

(Image credit: Jean-Bernard Caron/Copyright Royal Ontario Museum)

The Tokkummia ROM63826 was found dorso-ventrally preserved with its bivalved shell covering the majority of its body and walking limbs. The large, almost symmetrically preserved pincers are visible at left. At the right, the animal's visible posterior appendages may have been used for swimming and possible respiratory function, and a furcate tailpiece completes the body.

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