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Stigmaspis

Artiopoda - Asaphida - Dikelocephalidae

Taxonomy
Stigmaspis was named by Nelson (1951) [Sepkoski's age data: Cm Fran-u Sepkoski's reference number: 379]. It is not extant.

It was assigned to Saukiidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).

Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by D. van Oyen on 2013-04-30

Synonymy list
YearName and author
1951Stigmaspis Nelson
2002Stigmaspis Jell and Adrain p. 448
2002Stigmaspis Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyDikelocephaloidea(Miller 1889)
familyDikelocephalidae(Miller 1889)
genusStigmaspisNelson 1951

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.

G. †Stigmaspis Nelson 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: carnivorec
Vision: well-developedf
Created: 2009-12-13 22:54:18
Modified: 2009-12-14 00:54:18
Source: f = family, o = order, c = class
References: Hendy et al. 2009, Aberhan et al. 2004, Whittington et al. 1997

Age range: Sunwaptan or 493.50000 to 488.90000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Franconian497.0 - 486.85USA (Minnesota) S. hudsonensis (62117)
Sunwaptan493.5 - 488.9Canada (Alberta) S. albertensis (54088 54090 54091 64687 81302)