Trilobita - Phacopida - Dalmanitidae
Parent taxon: Dalmanitidae according to J. Shergold 1966
Sister taxa: Acastinae, Anchiopsis, Andreaspis, Argentopyge, Bessazoon, Blanodalmanites, Chattiaspis, Coronura, Corycephalus, Crozonaspis, Dalmanites, Dalmanitina, Dalmanitininae, Dalmaniturus, Daytonia, Delops, Dreyfussina, Duftonia, Fenestraspis, Forillonaria, Francovichia, Furacopyge, Gamonedaspis, Glyptambon, Huntoniatonia, Kazachstania, Lygdozoon, Malladaia, Morgatia, Mucronaspis, Neoprobolium, Odontocephalus, Odontochile, Ormathops, Phalangocephalus, Preodontochile, Prodontochile, Reussiana, Roncellia, Schoharia, Synphoria, Synphoriinae, Synphoroides, Toletanaspis, Trypaulites, Zeliszkellinae, Zlichovaspis
Subtaxa: Acastocephala
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Silurian of the United Kingdom (3 collections)
Total: 3 collections each including a single occurrence