30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA
30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA 30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA 30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA 30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA 30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA

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30367 - Top Rare 0.50 Inch Spencia typicalis Middle Cambrian Trilobite - Utah USA

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Species
† Spencia typicalis (Resser, 1939)
Age
Middle Cambrian,(~509 Million Years)
Location
Richmont, Utah, USA
Formation
Spence Shale
Size
12.6 mm   •    in
Weight
40 g   •    oz
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Description
Spencia typicalis, Resser 1939 (trilobite)
Trilobita - Ptychopariida - Ptychopariidae

PaleoDB taxon number: 235010

Full reference: C. E. Resser. 1939. The Spence Shale and its fauna. Smithsonian Miscellaneous Collections 97(12):1-29

Belongs to Spencia according to C. E. Resser 1939

Sister taxa: Spencia plena, Spencia quadrata, Stauroholcus typicalis

Type specimen: USNM 96535

Ecology: fast-moving low-level epifaunal carnivore
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