Acastocephala
# Acastocephala

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 (kephalē) "head", indicating the headshield is similar to Acaste.

## Taxonomy

Acastocephala may contain the ancestor of Acastava.

## Distribution

* 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).
