Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Symphysurina

Trilobita - Asaphida - Nileidae

Taxonomy
Symphysurina was named by Ulrich (1924) [Sepkoski's age data: O Trem-l].

It was assigned to Asaphida by Sepkoski (2002); and to Nileidae by Jell and Adrain (2003).

Synonymy list
YearName and author
1924Symphysurina Ulrich
2002Symphysurina Sepkoski, Jr.
2003Symphysurina Jell and Adrain p. 449

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
subclassLibristomaFortey 1990
orderAsaphidaSalter 1864
familyNileidaeAngelin 1854
genusSymphysurinaUlrich 1924

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