"23932738"^^ . . . "Protolloydolithus"@en . . . . "777"^^ . "Williams, 1948"@en . . "1020444055"^^ . . "Protolloydolithus is a genus of trinucleid trilobites found in Ordovician rocks in Gilwern Hill, Powys, Wales."@en . "Species"@en . . . . . . . . "Protolloydolithus is a genus of trinucleid trilobites found in Ordovician rocks in Gilwern Hill, Powys, Wales."@en . . . . . . . "Protolloydolithus"@en . . . . . . . .