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Spirantyx

Trilobita - Asaphida - Alsataspididae

Taxonomy
Spirantyx was named by Whittard (1961) [Sepkoski's age data: O Llde-l O Cara-l Sepkoski's reference number: 378]. It is not extant.

It was assigned to Trilobita by Sepkoski (2002); and to Alsataspididae by Jell and Adrain (2003).

Synonymy list
YearName and author
1961Spirantyx Whittard
2002Spirantyx Sepkoski, Jr.
2003Spirantyx Jell and Adrain p. 447

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
subclassLibristomaFortey 1990
orderAsaphidaSalter 1864
familyAlsataspididaeTurner 1940
genusSpirantyxWhittard 1961

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