Trilobita - Phacopida

Parent taxon: Phacopida according to J. M. Adrain 2011

See also Reijers 1972 and Sandford 2004

Sister taxa: Calpmenella, Calymenina, Cheirurina, Frenerinuroides, Sambremeusapis, Typhloiscus

Subtaxa: Acastoidea Dalmanitoidea Diaphanometopidae Phacopoidea Prosopiscidae

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Ecology: fast-moving low-level epifaunal carnivore

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