30321 - Rare  0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK
30321 - Rare  0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK 30321 - Rare  0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK 30321 - Rare  0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK

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30321 - Rare 0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK

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Species
† Porterfieldia punctata
Age
Ordovician, (~460 Million Years)
Location
Wales, UK
Formation
Wales Ordovician Outcrops
Size
12.2 mm   •    in
Weight
100 g   •    oz
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Description
Porterfieldia, Cooper 1953 (trilobite)
Trilobita - Olenidae
 
PaleoDB taxon number: 20859

Full reference: B. N. Cooper. 1953. Trilobites from the Lower Champlainian formations of the Appalachian Valley. Geological Society of America Memoir 55:1-69

Parent taxon: Oleninae according to R. Ludvigsen and P. A. Tuffnell 1983

See also Harrington and Leanza 1957, Jell and Adrain 2002 and Sepkoski 2002

Sister taxa: Plesioparabolina, Triarthrus, Bienvillia

Subtaxa: Porterfieldia caecigenus, Porterfieldia convergens, Porterfieldia fisheri, Porterfieldia jachalensis, Porterfieldia parapunctata, Porterfieldia sinensis, Porterfieldia thor

View classification

Ecology: fast-moving low-level epifaunal carnivore

Environments: slope (7 collections), deep subtidal shelf (2), offshore (2), basinal (siliciclastic) (1), platform/shelf-margin reef (1), deep-water (1), marine (1), basinal (carbonate) (1)

Age range: 466.0 to 449.5 Ma

Distribution:

• Ordovician of Argentina (4 collections), Canada (3: Newfoundland and Labrador, Northwest Territories ), China (2), Ireland (1), Peru (1), the United Kingdom (1), Venezuela (1)

• Whiterockian of Canada (12: Newfoundland and Labrador), Norway (2)

• Arenig of Argentina (2)
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