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- Brachiopods: Easy to find fossils
- Bryozoa: "Moss animals" of the sea
- Callixylon: 375-million-year-old wood
- Cephalopods: 500-million-year-old mollusks
- Collecting plant fossils in Indiana
- Conodonts: Micro fossils of distinction
- Corals: Reef builders in ancient and modern seas
- Crinoids: Ancient versus modern forms
- Crinoids: Living fossils of the sea
- Cystoids and blastoids: Primitive stalked marine animals
- Dinosaur fossils are not found in Indiana
- Eurypterids: Scorpions of the sea
- Fossils: Numbers on the pages of time
- Gastropods
- Ice Age mammals: What catastrophe overtook them?
- Indiana's fossil fusulinids
- Ostracods
- Ostracoderms: The first vertebrates
- Pelecypods
- Sea urchins: The echninoids
- Sharks: Monarchs of the ancient seas
- Sponges in Indiana rocks
- Spoonbill (polydon spathula): Primitive Hoosier fish
- The starfish family: Stelleroidea
- Trace fossils
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