Awesome Ottoia prolifica fossil! Trilobite Age!

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Species: Ottoia prolifica Age: Middle Cambrian Formation: Spence Shale Location: Utah Here is a phenomenal priapulid worm fossil from the Middle Cambrian Spence Shale. This fossil species was made famous by the Burgess Shale. Even though the Spence Shale is just a little bit older than the Burgess, there is significant faunal overlap. This particular specimen is incredible well preserved. The proboscis can even be identified. The specimen measures 2.5cm long. Matrix measures 5 x 6cm.