Invertebrate Fossils - Lesson 16 - Part 5 of 7
•Mollusks in the Cambrian time
•Deposit feeders; snails gastropods, not many cephalopods
•This shows Cambrian ocean floor was dominated deposit feeders
•Graptolites floating organisms in Ordovician time
•Brachiopod filtering sea water -- Ordovician time
•Horn coral
•Echinoderm -- Sea urchin -- Sea Star filter feeders, Ordovician
•Ancient climates during these periods
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flyingscience 1 year ago