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

Stephenaspis

Trilobita - Corynexochida - Zacanthoididae

Taxonomy
Stephenaspis was named by Rasetti (1951) [Sepkoski's age data: Cm Tojo-u Sepkoski's reference number: 80]. It is not extant.

It was assigned to Corynexochida by Sepkoski (2002); and to Zacanthoididae by Jell and Adrain (2003).

Synonymy list
YearName and author
1951Stephenaspis Rasetti
2002Stephenaspis Sepkoski, Jr.
2003Stephenaspis Jell and Adrain p. 448

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

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumMandibulata
classTrilobitaWalch 1771
orderCorynexochidaKobayashi 1935
familyZacanthoididaeSwinnerton 1915
genusStephenaspisRasetti 1951

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