Trinucleioidea es una superfamilia de trilobites . Tradicionalmente se la clasificaba dentro de Asaphida , pero ahora se la considera un orden propio, Trinucleida . [1] [2]
Hay cinco familias en la superfamilia: Alataspididae, Dionididae, Liostracinidae, Raphiophoridae y Trinucleidae.
Alsataspididae: Ajrikina, Alataupleura, Araiopleura, Calycinoidia, Caputrotundum, Clavatellus, Falanaspis, Hapalopleura, Huamiaocephalus, Jegorovaia, Jiangxiaspis, Orometopus, Pagometopus, Palquiella, Paracalymenemene, Plesioparabolina, Pyrimetopus, Rhadinopleura, Seleneceme, Sibiriopleura Skl, jarella, Spirantyx, Trigocephalus, Yumenaspis, Zacompsus.
Dionididae: Aethedionide, Digrypos, Dionide, Dionideina, Dionidella, Huangnigangia, Paradionide, Tongxinaspis, Trinucleoides .
Liostracinidae: Aplexura, Doremataspis, Liostracina, Lynaspis .
Español: Raphiophoridae : Ampyx , Ampyxella, Ampyxina, Ampyxinella, Ampyxoides, Anisonotella, Bulbaspis , Caganaspis, Carinocranium , Cerampyx, Cnemidopyge , Collis, Edmundsonia, Ellsaspis, Endymionia, Globampyx , Jiuxiella, Kanlingia, Lonchodomas , Malinaspis, Malongullia, Mendolaspis , Metalonchodomas, Miaopopsis, Nambeetella , Nanshanaspis , Parabulbaspis, Parampyx, Pseudampyxina, Pytine , Raphioampyx, Raphiophorus , Raymondella, Rhombampyx, Salteria, Sinampyxina, Sinoluia, Taklamakania .
Trinucleidae : Anebolithus , Australomyttonia, Bancroftolithus, Bergamia, Bettonolithus , Botrioides, Broeggerolithus , Costonia , Cryptolithoides, Cryptolithus , Deanaspis , Declivolithus, Decordinaspis, Eirelithus, Famatinolithus , Furcalithus , Guandacolithus, Gymnostomix , Hanchungolithus, Huenickenolithus, Incaia, Jianxilithus, Lloydolithus , Lordshillia , Marekolithus, Marrolithoides, Marrolithus, ?Microdiscus, Myinda, Myindella, Myttonia , Nankinolithus, Ningkianolithus , Novaspis, Onnia , Paratretaspis, Paratrinucleus, Parkesolithus, Pragolithus, Protoincaia, Protolloydolithus . Reedolithus, Reuscholithus, Salterolithus , Stapeleyelta, Telaeomarrolithus, Tetrapsetlium, Tretaspis, Trinucleus , Whittardolithus, Xiushuilithus, Yinpanolithus . [2]