Acastocephala

Updated on Dec 20, 2024

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Kingdom Animalia Class Trilobita Family Acastidae		Phylum Arthropoda Order Phacopida Rank Genus
Similar Balizoma, Acaste, Acastoides, Cnemidopyge, Lloydolithus

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

Etymology

The name is derived from the genus Acaste and the Ancient Greek κεφαλή (cephale) "head", indicating the headshield is similar to Acaste.

Acastocephala may contain the ancestor of Acastava.

A. macrops occurs in the Middle Silurian of the United Kingdom (Wenlock Shale, Malvern, Worcestershire; Wenlock Limestone, Pen-y-Lan, Cardiff, and Dudley and Ludlow, Ledbury, Hereford).

A. dudleyensis has been found in the Middle Silurian of the United Kingdom (Wenlock Limestone, Wren's Nest, Dudley, Worcestershire).

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