Dudleyaspis

Dudleyaspis (meaning "Dudley shield") is an extinct genus of Lower to Middle Devonian odontopleurid trilobites that lived in a shallow sea that lay between Euramerica and Gondwana. It was named in 1949 by Prantl & Pribyl.

Fossils of Dudleyaspis have been found in the following locations:
 * Australia: Bathurst (Jesse Limestone ), Mudgee (Flirtation Hill ) and Murrumbateman (Black Bog Formation – Yarwood Siltstone Member )
 * Canada: Northwest Territories (Mackenzie Mountains – Delorme and Whittaker Formations ) and Nunavut (Bailie-Hamilton and Cornwallis Islands – Cape Phillips Formation )
 * Czech Republic: Prague (Loc. 5.2 – C. colonus Zone )
 * England: Cannock (Shelve District ) and Dudley (Wren's Nest – Much Wenlock Limestone Formation )
 * France: Coumiac (Coumiac quarry – Coumiac Formation )
 * Sweden: western Gotland (Visby – Rönnklint sea cliff and Kättelviken )
 * United States: Illinois (Chicago – Racine Dolomite and Kankakee – Racine Dolomite ), Iowa (Hopkinton Dolomite ), Oklahoma (Anadarko – Henryhouse Formation ) and Wisconsin (Milwaukee – Racine Dolomite )