30321 - Rare 0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK Pinnixa galliheri † Platecarpus sp

† Platecarpus sp

and collections Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry

It has very intense brightness

marginal marine (5)

Impressive specimen

30321 - Rare 0.48 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK Pinnixa galliheri † Platecarpus spPorterfieldia, 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