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Hedinaspis

Artiopoda - Asaphida - Ceratopygidae

Taxonomy
Hedinaspis was named by Troedsson (1951) [Sepkoski's age data: Cm Fran-u Cm Trep Sepkoski's reference number: 484]. It is not extant.

It was assigned to Ceratopygidae by Bao and Jago (2000), Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).

Species
H. regalis, H. shengi, H. uniformis
Species lacking formal opinion data
H. kueichouensis

Synonyms
  • Hedinia was named by Troedsson (1937). It is not extant.

    It was replaced with Hedinaspis by Troedsson (1951).
Synonymy list
YearName and author
1937Hedinia Troedsson
1951Hedinaspis Troedsson
2000Hedinaspis Bao and Jago pp. 892, 893
2002Hedinaspis Jell and Adrain p. 383
2002Hedinaspis 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
superfamilyAsaphoideaSalter 1864
familyCeratopygidaeRaymond 1913
genusHedinaspisTroedsson 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. †Hedinaspis Troedsson 1951
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†Hedinaspis regalis Troedsson 1937
†Hedinaspis shengi Lu 1964
†Hedinaspis uniformis Bao and Jago 2000
Invalid names: Hedinia Troedsson 1937 [replaced]
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 22:50:48
Modified: 2009-12-14 00:50:48
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009

Age range: base of the Trempealeauan to the top of the Datsonian or 490.20000 to 486.85000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Franconian497.0 - 486.85USA (Nevada) H. sp. (252)
Furongian497.0 - 486.85China (Guizhou) H. kueichouensis (277023 277024)
Taoyuanian - Niuchehean495.2 - 486.85China (Zhejiang) H. regalis (125522 125523 125525 125567 125668 125692) H. regalis, H. shengi (125566)
Niuchehean491.0 - 486.85China (Hunan) H. regalis (107330 126671 126672 126673 126724 126726)
Payntonian - Datsonian491.0 - 486.85Australia (Tasmania) H. uniformis (62275)
Stage 10491.0 - 486.85China (Zhejiang) H. regalis (277012 277013) H. regalis, H. shengi (276999)
Stage 10491.0 - 486.85USA (Nevada) H. sp. (276606)
Trempealeauan490.2 - 486.85USA (Nevada) H. regalis (75438)