{{Short description|Extinct genus of trilobites}} {{Automatic taxobox | fossil_range = {{fossilrange|463.5|457.5}} | image = | image_caption = | taxon = Protolloydolithus | authority = Williams, 1948 | subdivision_ranks = Species | subdivision = }}
'''''Protolloydolithus''''' is a genus of trinucleid trilobites found in Ordovician rocks in Gilwern Hill, Powys, Wales.
==References== {{Reflist}} * The World Encyclopedia of Fossils& Fossil-Collecting, ''Steve Parker'' * [http://www.scran.ac.uk/database/record.php?usi=000-000-617-231-C Protolloydolithus fact file]
{{Taxonbar|from=Q7252024}}
Category:Trinucleidae Category:Asaphida genera Category:Ordovician trilobites of Europe
{{Asaphida-stub}}