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Xenasaphus (Xenasaphus) devexus

Trilobita - Asaphida - Asaphidae

Taxonomy
Asaphus devexus was named by Eichwald (1840) [lectotype designated by Ivantsov 2000]. Its type specimen is DHG SPbSU, no. 1-1211 (lectotype), a pygidium, and it is a 3D body fossil. It is the type species of Xenasaphus, Xenasaphus (Xenasaphus).

It was recombined as Xenasaphus devexus by Jaanusson (1953); it was recombined as Xenasaphus (Xenasaphus) devexus by Ivantsov (2000).

Synonymy list
YearName and author
1840Asaphus devexus Eichwald p. 417
1953Xenasaphus devexus Jaanusson
2000Xenasaphus (Xenasaphus) devexus Ivantsov p. 417

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyAsaphidaeBurmeister 1843
genusXenasaphusJaanusson 1953
subgenusXenasaphusJaanusson 1953
speciesdevexus(Eichwald 1840)

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.

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Diagnosis
No diagnoses are available