Trilobita - Phacopida - Calymenidae
Full reference: W. T. Dean. 1962. The trilobites of the Caradoc Series in the Cross Fell Inlier of northern England. Bulletin of the British Museum (Natural History) Geology v. 7, no. 3, p. 65 7(3):65-134
Parent taxon: Flexicalymene according to B. R. Hunda and N. C. Hughes 2007
See also Dean 1962, Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Flexicalymene (Flexicalymene), Flexicalymene (Reacalymene), Flexicalymene aurora, Flexicalymene cambrensis, Flexicalymene caractaci, Flexicalymene cavei, Flexicalymene croneisi, Flexicalymene forcipata, Flexicalymene granulosa, Flexicalymene griphus, Flexicalymene incerta, Flexicalymene magnipapilla, Flexicalymene meeki, Flexicalymene onniensis, Flexicalymene peregrina, Flexicalymene planilabra, Flexicalymene planimarginata, Flexicalymene praelongicephala, Flexicalymene quadricapita, Flexicalymene retrorsa, Flexicalymene scabustula, Flexicalymene scotica, Flexicalymene shirleyi, Flexicalymene tazarinensis, Flexicalymene trinucleina, Flexicalymene vaccarii, Flexicalymene verecunda
Subtaxa: Flexicalymene (Onnicalymene) jemtlandica Flexicalymene (Onnicalymene) scabustula
Ecology: nektobenthic carnivore
Distribution: