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Megistaspis (Megistaspidella) acuticauda

Artiopoda - Asaphida - Asaphidae

Taxonomy
Megalaspis acuticauda was named by Angelin (1854).

It was recombined as Megistaspis (Megistaspidella) acuticauda by Nielsen (1995).

Sister species lacking formal opinion data
M. gibba, M. filacovi, M. aliena, M. gibba

Synonymy list
YearName and author
1854Megalaspis acuticauda Angelin p. 50 figs. Pl. 27:4
1995Megistaspis (Megistaspidella) acuticauda Nielsen pp. 153 - 156 figs. 118 - 119

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
RankNameAuthor
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyAsaphidaeBurmeister 1843
subfamilyIsotelinaeAngelin 1854
genusMegistaspisJaanusson 1956
subgenusMegistaspidellaJaanusson 1956
speciesacuticauda(Angelin 1854)

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
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-08 11:56:30
Modified: 2009-06-08 13:56:30
Source: g = genus, f = family, o = order, c = class
References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004

Age range: base of the Volkhov to the top of the Hunderum or 471.30000 to 465.90000 Ma

Collections (32 total)


Time interval Ma Country or state Original ID and collection number
Hunderum472.1 - 465.9Sweden Megistaspis acuticauda (198059)
Volkhov471.3 - 469.1Russian Federation Megistaspis acuticauda (157117 157119 157120 157121 157124 157126 157127 157128 157130 157133 157135 157137 157139 157140 157141)
Volkhov471.3 - 469.1Sweden Megalaspis acuticauda (188266)
Kunda469.1 - 464.3Russian Federation Megistaspis acuticauda (157142 157143 157144 157145 157146 157147 157148 157149)
Kunda469.1 - 464.3Sweden Megalaspis acuticauda (188217 188218 188224 188268 188283 188300 188302)