30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA
30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA 30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA 30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA

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30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA

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Species
Amecephalus piochensis (Walcott, 1886)
Age
Cámbrico medio, Upper Glossopleura zone
Location
Pioche, Nevada (USA)
Formation
Chisholm Shale
Size
9 mm   •    in
Weight
10 g   •    oz
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Description
Amecephalus, Walcott 1924 (trilobite)
Trilobita - Alokistocaridae
 
PaleoDB taxon number: 20273

Parent taxon: Ptychopariacea according to F. A. Sundberg and L. B. McCollum 2000

See also Jell and Adrain 2002, Mason 1935, Palmer and Halley 1979, Sepkoski 2002 and Sundberg and McCollum 2000

Sister taxa: Eokochaspis, Kochina, Mexicella, Piochella

Subtaxa: Amecephalus arrojosensis, Amecephalus strangulatus

View classification

Ecology: fast-moving low-level epifaunal deposit feeder

Environments: marine (5 collections), (2), carbonate (1), transition zone/lower shoreface (1)

Age range: 513.0 to 488.3 Ma

Distribution:

• Cambrian of Canada (7: British Columbia, Northwest Territories, Yukon Territory collections), Mexico (1), United States (6: Nevada, Utah)
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