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Symphysurus

Trilobita - Asaphida - Nileidae

Taxonomy
Symphysurus was named by Goldfuss (1843). Its type is Asaphus palpebrosus.

It was assigned to Asaphida by Sepkoski (2002); and to Nileidae by Fortey (1975), Hoel (1999) and Jell and Adrain (2003).

Synonymy list
YearName and author
1843Symphysurus Goldfuss
1975Symphysurus Fortey
1999Symphysurus Hoel
2002Symphysurus Sepkoski, Jr.
2003Symphysurus Jell and Adrain p. 450

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
subclassLibristomaFortey 1990
orderAsaphidaSalter 1864
familyNileidaeAngelin 1854
genusSymphysurusGoldfuss 1843

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