Acastocephala

Acastocephala; Temporal range: Silurian
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Acastidae
Genus:	Acastocephala; Shergold, 1966
Species
	A. macrops (Salter, 1864) (type) synonym Phacops downingiae var. β. macrops; A. dudleyensis Shergold, 1966;

Acastocephala is a genus of trilobite from the middle Silurian, known from the United Kingdom.

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