A Mollusk Among Us!

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Across
  1. 3. shared derived trait that all mollusks have
  2. 5. developmental pathway that grows the coelom in mollusks
  3. 8. geologic chore of using fossils to correlate rock units in relative time
  4. 9. a bivalve that burrows into sad
  5. 11. mineral that creates “mother of pearl” in many mollusk shells
  6. 13. an ammonoid’s buoyancy device
  7. 14. stomach foot, a class of mollusks
  8. 15. orientation of the line of bilateral symmetry with respect to the hinge line in a brachiopod
  9. 16. orientation of the line of bilateral symmetry with respect to the hinge line in a bivalve
Down
  1. 1. part of the conch that is growing
  2. 2. head-foot, a class of mollusks
  3. 3. a bivalve that attaches to a rock using byssal threads
  4. 4. a garden pest or gourmet meal, a gastropod
  5. 6. two shells, a class of mollusks
  6. 7. a bivalve that cements one valve directly to the rock or substrate
  7. 10. tissue that makes mollusks a better meal than brachiopods
  8. 12. a bivalve that can “swim”