Monthly Archives: October 2013

Wooster’s Fossil of the Week: A cheilostome bryozoan and serpulid worm bryolith from the Recent of Massachusetts

A bryolith is a mobile, unattached mass of bryozoans. Cheilostome bryozoans are especially good at forming bryoliths because of their hardy skeletons and relatively rapid rates of growth. The above specimen is a bryolith collected by my good friend Al … Continue reading

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Wooster’s Fossil of the Week: A gastropod/coral/hermit crab combination from the Pliocene of Florida

These two shells show a lovely symbiosis between shallow marine hermit crabs and encrusting scleractinian corals. I was first introduced to the concept of “pagurized” shells by my friends Paul Taylor and Sally Walker. They showed me the many ways … Continue reading

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