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Mazon Creek Fauna

Cnidaria
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Essexella asherae (scyphomedusan jellyfish) - Mazon Creek
Essexella asherae - scyphomedusan jellyfish
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Polyplacophora
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Glaphurochiton concinnus - rare fossil chiton from the Essex biota (marine); as shown with a modern chiton example on the left - Mazon Creek

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Sea Cucumber concretion - Mazon Creek
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Illinichtys cozarti? - Fish concretion - Mazon Creek
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Fish concretion - Mazon Creek
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Megathentomum pustulatum - insect wing concretion - Mazon Creek

Tullimonstrum gregarium
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Tullimonstrum gregarium ("Tully Monster") - Mazon Creek - proboscis not preserved

Xiphosura
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Euproops danae - horseshoe crab concretion - Mazon Creek

Bivalvia
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Aviculopecten mazonensis - Pecten concretion - Mazon Creek

Polychaete Worms
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Polychaete annelid worm (bristle worm) - Mazon Creek

Cyclus
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Cyclus concretion - Mazon Creek
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Cyclus concretion - Mazon Creek
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Cyclus concretion - Mazon Creek
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Cyclus concretion - Mazon Creek

Crustacea
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Belotelson magister - Shrimp concretion - Mazon Creek
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Shrimp concretion - Mazon Creek
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Shrimp concretion - Mazon Creek
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Shrimp concretion - Mazon Creek
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