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Fossils in Indiana

Bivalves

  • Include clams, oysters, scallops, etc.
  • Appear first about 500 million years ago in the early Cambrian period
  • number of living species approx. 9,200
  • from Madison and Jefferson Counties

Brachiopods

Crinoids

Corals

  • Brightly colored when alive
  • Been around for nearly 400 million years
  • Capture prey by using tentacles with stinging cells
  • Found in southwest Indiana
  • most common fossil in Indiana
  • resemble dams
  • distinct type of marine animal (shellfish)
  • from early part of Cambrian period about 525 million years ago
  • can find north of Madison & Jefferson Co.
  • known as sea lillies
  • north of Madison and Jefferson Co.
  • live in both deep and shallow water
  • 450 million years old

Bryozoans

  • 470 million years ago
  • barely bigger than a comma ona printed page
  • groups of marine creatures living in colonies made of hundreds of tiny animals
  • Can be found north of Madison and Jefferson Co.
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