Dodatak:Abecedni popis trilobita: R
Ra uredi
Raashellina Rozova, 1963 † uredi
- †Raashellina paula Rozova 1963
Trilobita → Ptychopariida → Lonchocephalidae Rabienops, Radiopyge, Radioscutellum, Radonia, Rampartaspis, Randicephalus, Raphiophoridae, Raragnostus Rasettaspis, Rasettia, Raymondaspis, Raymondinidae,
Re uredi
Realaspis, Redlichaspis, Redlichiacea, Redlichiida, Redlichiidae, Redlichiina, Redlichinidae, Redlichops, Reediella, Regius, Remizites, Remopleuridacea, Remopleuridae, Remopleurididae, Renniella, Reraspis, Resseraspis, Resseria, Resseropsis, Reubenella, Reussiana,
Rh uredi
Rhadinopleura, Rhaptagnostus, Rhaxeros, Rhenogriffides, Rhinophacops, Rhinoreedops, Rhodope, Rhodotypiscus, Rhyssometopidae, Rhyssometropus,
Ri uredi
Richardsonellidae, Richteraspis, Richterella, Richterops, Rinconia,
Ro uredi
Rochaeva,
Rollia Cullison, 1944 † uredi
- †Rollia goodwini Cullison 1944
Trilobita → Proetida → Bathyuroidea → Hystricuridae
Rollmops McNamara, 1980 † uredi
Trilobita → Phacopida → Phacopoidea → Pterygometopidae Roncellia, Rondocephalus Rontrippia, Rorringtoniidae,
Rowia Deiss, 1939 uredi
Ru uredi
Runcinodiscus,
Ry uredi
Ryckholtia,