Mazon Creek Fauna
Cnidaria
Essexella asherae (scyphomedusan jellyfish) - Mazon Creek
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Essexella asherae - scyphomedusan jellyfish
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Polyplacophora
Glaphurochiton concinnus - rare fossil chiton from the Essex biota (marine); as shown with a modern chiton example on the left - Mazon Creek
Sea Cucumber concretion - Mazon Creek
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Illinichtys cozarti? - Fish concretion - Mazon Creek
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Fish concretion - Mazon Creek
Megathentomum pustulatum - insect wing concretion - Mazon Creek
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Tullimonstrum gregarium
Tullimonstrum gregarium ("Tully Monster") - Mazon Creek - proboscis not preserved
Xiphosura
Euproops danae - horseshoe crab concretion - Mazon Creek
Bivalvia
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Aviculopecten mazonensis - Pecten concretion - Mazon Creek
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Polychaete Worms
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Polychaete annelid worm (bristle worm) - Mazon Creek
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Cyclus
Cyclus concretion - Mazon Creek
Cyclus concretion - Mazon Creek
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Cyclus concretion - Mazon Creek
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Cyclus concretion - Mazon Creek
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Crustacea
Belotelson magister - Shrimp concretion - Mazon Creek
Shrimp concretion - Mazon Creek
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Shrimp concretion - Mazon Creek
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Shrimp concretion - Mazon Creek
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