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Onchocephalites claytonensis

Trilobita - Ptychopariida - Ptychopariidae

Taxonomy
Onchocephalites claytonensis was named by Sundberg and McCollum (2003). Its type specimen is USNM 517520 and is a 3D body fossil. Its type locality is USNM 41985, Split Mountain, Clayton Ridge, which is in a Delamaran offshore shelf lime mudstone/lime mudstone in the Emigrant Formation of Nevada.

Synonymy list
YearName and author
2003Onchocephalites claytonensis Sundberg and McCollum pp. 971 - 974 figs. Plate 6, figures 1- 15

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyPtychopariidaeMatthew 1887
genusOnchocephalitesRasetti 1957
speciesclaytonensis

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.

Onchocephalites claytonensis Sundberg and McCollum 2003
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Diagnosis
ReferenceDiagnosis
F. A. Sundberg and L.B. McCollum 2003Cranidium has shallow lateral glabellar furrows, axial furrows, anterior border furrow, median inbend of the anterior border, and wide palpebral lobes.