Acastoides

Acastoides is an extinct genus of trilobite that lived during the Silurian and Devonian. It has been found in Bolivia, France, Morocco, Poland, Turkey and the United Kingdom.

Distribution

 * A. constricta is found in the Silurian of the United Kingdom (Wenlock, Woolhope Shale, Worcestershire, Malvern).

Species previously assigned to Acastoides

 * A. verneuili = Calmonia terrarocenai