30579 - Positive/Negative 0.45 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK Gastropods Ceratopyge

Ceratopyge

Zazvorkaspis

Apart from the main teeth it can be observed as it preserves an emerging germ replacement tooth

In the same matrix you can also see a coral

Euphemerites

30579 - Positive/Negative 0.45 Inch Porterfieldia punctata Ordovician Trilobite - Wales, UK Gastropods CeratopygePorterfieldia, 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