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Trinucleus
Taxonomy
Trinucleus was named by Murchison (1839) [Sepkoski's age data: O Llvi-l O Llde-u Sepkoski's reference number: 795]. It is not extant.
It was assigned to Asaphida by Sepkoski (2002); and to Trinucleidae by Jell and Adrain (2003).
It was assigned to Asaphida by Sepkoski (2002); and to Trinucleidae by Jell and Adrain (2003).
Species lacking formal opinion data
Sister genera
Anebolithus, Bergamia, Bettonolithus, Botrioides, Broeggerolithus, Cryptolithoides, Cryptolithus, Deanaspis, Declivolithus, Decordinaspis, Eotrinucleus, Famatinolithus, Furcalithus, Guandacolithus, Gymnostomix, Hanchungolithus (syn. Ichangolithus), Incaia, Lloydolithus, Lordshillia, Marekolithus, Marrolithoides, Marrolithus, Myinda, Myindella, Myttonia, Nankinolithus, Ningkianolithus, Novaspis, Onnia, Parkesolithus, Protolloydolithus, Reedolithus, Reuscholithus, Salterolithus, Stapeleyella, Tretaspis
Download authority and opinion data - View classification of included taxa
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Trinucleus Murchison |
| 2002 | Trinucleus Sepkoski, Jr. |
| 2003 | Trinucleus Jell and Adrain p. 455 |
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