Trinucleioidea

Trinucleioidea Temporal range: Furongian–Silurian PreꞒ Ꞓ O S D C P T J K Pg N
Cryptolithoides ulrichi , a trilobite in the family Trinucleidae
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	† Trilobita
Order:	† Asaphida
Superfamily:	† Trinucleioidea
Families
See text

Trinucleioidea is a superfamily of trilobites. Traditionally placed within the Asaphida, it is now sometimes considered its own order, Trinucleida. ^{[1] [2]}

Damghanampyx ghobadipour fossil from Lashkark Formation, Ordovician, Damghan, Iran

Taxonomy

There are five families in the super family; they are the: Alataspididae, Dionididae, Liostracinidae, Raphiophoridae, and Trinucleidae

Families and genera

Alsataspididae: Ajrikina, Alataupleura, Araiopleura, Calycinoidia, Caputrotundum, Clavatellus, Falanaspis, Hapalopleura, Huamiaocephalus, Jegorovaia, Jiangxiaspis, Orometopus, Pagometopus, Palquiella, Paracalymenemene, Plesioparabolina, Pyrimetopus, Rhadinopleura, Seleneceme, Sibiriopleura, Skljarella, Spirantyx, Trigocephalus, Yumenaspis, Zacompsus.

Dionididae: Aethedionide, Digrypos, Dionide, Dionideina, Dionidella, Huangnigangia, Paradionide, Tongxinaspis, Trinucleoides .

Liostracinidae: Aplexura, Doremataspis, Liostracina, Lynaspis.

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]

References

1. Bignon, Arnaud; Waisfield, Beatriz G.; Vaccari, Emilio; Chatterton, Brian D. E. (2020). "Reassessment of the Order Trinucleida (Trilobita)" . Journal of Systematic Palaeontology . 18 (13): 1061–1077. Bibcode:2020JSPal..18.1061B. doi:10.1080/14772019.2020.1720324. S2CID   212995185.
2. "TRILOBITE ORDER TRINUCLEIDA FACT SHEET". www.trilobites.info.