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Psephosthenaspis

Trilobita - Proetida - Bathyuridae

Taxonomy
Psephosthenaspis was named by Whittington (1953) [Sepkoski's age data: O Llvi-l].

It was assigned to Proetida by Sepkoski (2002); and to Bathyuridae by Jell and Adrain (2003).

Synonyms
Synonymy list
YearName and author
1953Psephosthenaspis Whittington
1991Ludvigsenella Tremblay and Westrop
2002Psephosthenaspis Sepkoski, Jr.
2003Psephosthenaspis Jell and Adrain p. 432

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyBathyuridaeWalcott 1886
subfamilyBathyurinaeWalcott 1886
genusPsephosthenaspisWhittington 1953

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