PRIMITIVE WORLDS
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    • Classic Trilobites
    • Classic Cystoids
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  • Quarry Fauna Record
    • Coral (3)
    • Bivalves (2)
    • Bryozoan (15)
    • Brachiopods (26)
    • Gastropods (5)
    • Cephalopods (5)
    • Conulariids (4)
    • Graptolites (8)
    • Worm Tubes (4)
    • Machaeridian Worms (1)
    • Edrioasteroid (2)
    • Starfish (3)
    • Brittle Stars (2)
    • Coronoidea (1)
    • Crinoids (14)
    • Cystoids (3)
    • Trilobites (11)
    • Incertae Sedis (uncertain group) (3)
    • Ichnofossils (trace fossils) (4)

Classic Cystoids

Caryocrinites ornatus Hall, 1852
PictureCaryocrinites ornatus
 This plate has 11 superb specimens on it. The longest specimen measures 19.5 cm and the shortest is 10.2 cm. The width of the cluster at its widest point is 15 cm. This cluster is attached to a bryozoan mass which measures
​ 8.3 cm x 53. cm.

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Callocystites jewetti Say, 1825
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Here is the periproct. (waste removal valve)
Apiocystites elegans Hall, 1852
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Here is the one and only specimen found with the feeding arms extended!
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  • Home
  • Unique Specimens
  • Research News
    • Graptolite Update
  • The Caleb Quarry
    • Stratigraphy & Paleoenvironments
    • A Silurian Environment Illustration
    • Quarry Stratigraphy
  • Classic Photos
    • Classic Trilobites
    • Classic Cystoids
    • Classic Crinoids
    • Classic Conulariid
    • Classic Bryozoan
    • Classic Worm Tubes
  • Quarry Fauna Record
    • Coral (3)
    • Bivalves (2)
    • Bryozoan (15)
    • Brachiopods (26)
    • Gastropods (5)
    • Cephalopods (5)
    • Conulariids (4)
    • Graptolites (8)
    • Worm Tubes (4)
    • Machaeridian Worms (1)
    • Edrioasteroid (2)
    • Starfish (3)
    • Brittle Stars (2)
    • Coronoidea (1)
    • Crinoids (14)
    • Cystoids (3)
    • Trilobites (11)
    • Incertae Sedis (uncertain group) (3)
    • Ichnofossils (trace fossils) (4)