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

Onchocephalites claytonensis

Artiopoda - 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.

Sister species lacking formal opinion data
O. rotundiformis, O. spinulosus

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

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

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou 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
show all | hide all
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.
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-11 20:00:46
Modified: 2009-12-19 06:30:51
Source: f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: Delamaran or 509.70000 to 505.30000 Ma

Collections (29 total)


Time interval Ma Country or state Original ID and collection number
Delamaran509.7 - 505.3USA (California) Onchocephalites claytonensis (69499 69506 69512 69513 69515 69516)
Delamaran509.7 - 505.3USA (Nevada) Onchocephalites claytonensis (69406 69410 69413 69419 69429 69432 69434 69445 type locality: 69447 69456 69474 69475 69478 69479 69480 69482 69484 69485 69486 69487 69489 69493 69495)