Pseudofossils

Cone in cone
Dendrites
Ironstone concretion

Trace Fossils

Gastroliths
Cast
External mold
Internal mold (#1, #2)

Direct Fossil Evidence

Carbonization
Permineralization
Replacement
Bone before fossilization

Fossils

Phylum Protozoa

• Order Foraminifera
  
  • Nummulites
  • Fusulina (#1, #2)
• Order Radiolaria

Phylum Porifera

• Genus Receptaculites

Phylum Cnidaria

• Class Anthozoa
  • Order Rugosa (Tetracorals) (#1, #2)
  • Order Scleractinia (Hexacorals) (#1, #2)
  • Order Tabulata
    • Favosites "Honeycomb coral" (#1, #2, #3)
    • Halysites "Chain coral"
    • Syringopora "Organ pipe coral"

Phylum Bryozoa

• Nodular
• Branching
• Encrusting
• Genus Archimedes

Phylum Brachiopoda

• Class Inarticulata (#1, #2)
  
• Class Articulata (#1, #2, #3)
  

Phylum Mollusca

• Class Pelecypoda
  • Pecten (#1, #2)
  • Arca
  • Unio (#1, #2)
  • Venus (#1, #2, #3)
  • Ostrea
• Class Gastropoda (#1, #2, #3)
  • Trepospira
  • Worthenia
  • Busycon
• Class Cephalopoda
  • Subclass Nautiloidea
    • Nautilus (#1, #2, #3)
    • Orthoceras (#1, #2)
  • Subclass Ammonoidea
    • Ammonitic suture pattern (#1, #2, #3)
    • Ceratites
  • Subclass Coleoidea
    • Genus Belemnites

Phylum Arthropoda

• Class Trilobita #1, #2, #3, #4, #5)
• Class Crustacea
  • Order Ostracoda
  • Order Cirripedia

Phylum Echinodermata

• Attached
  • Class Blastoidea (#1, #2)
  • Class Crinoidea
    • Stems (#1, #2, #3)
    • Calyx (#1, #2)
• Unattached
  • Class Asteroidea
  • Class Echinodea (#1, #2)

Phylum Hemichordata (#1, #2, #3)

• Animated GIF showing the reflectiveness when you turn the rock containing the hemichordate.