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Nucleurus

Trilobita - Phacopida - Encrinuridae

Taxonomy
Nucleurus was named by Ramskold (1986) [Sepkoski's age data: S Ldov-m S Ldov-u Sepkoski's reference number: 1088]. It is not extant.

It was assigned to Phacopida by Sepkoski (2002); and to Encrinuridae by Jell and Adrain (2003).

Synonymy list
YearName and author
1986Nucleurus Ramskold
2002Nucleurus Sepkoski, Jr.
2003Nucleurus Jell and Adrain p. 412

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumMandibulata
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
familyEncrinuridaeAngelin 1854
genusNucleurusRamskold 1986

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
No diagnoses are available