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Symphysurus angustatus

Trilobita - Asaphida - Nileidae

Taxonomy
Trilobites angustatus was named by Sars and Boeck (1838).

It was recombined as Symphysurus angustatus by Boeck (1838) and Hoel (1999).

Sister species lacking formal opinion data
S. subquadratus

Synonyms
Synonymy list
YearName and author
1838Symphysurus angustatus Boeck
1869Symphysurus socialis Linnarsson
1999Symphysurus angustatus Hoel

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyCyclopygoideaRaymond 1925
familyNileidaeAngelin 1854
genusSymphysurusGoldfuss 1843
speciesangustatus(Sars and Boeck 1838)

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.

†Symphysurus angustatus Sars and Boeck 1838
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Invalid names: Symphysurus socialis Linnarsson 1869 [synonym]
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 12:34:24
Modified: 2009-06-08 14:34:24
Source: g = genus, f = family, o = order, c = class
References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009

Age range: base of the Varangu to the top of the Billingen or 485.40000 to 471.10000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Tremadoc486.5 - 477.7France (Montagne Noire) Symphysurus angustatus (201717)
Tremadoc486.5 - 477.7Sweden Symphysurus angustatus (3107 3108)
Varangu485.4 - 484.5Norway (Oslo) Symphysurus angustatus (3183)
Varangu485.4 - 484.5Sweden Symphysurus angustatus (172663)
Varangu485.4 - 484.5Norway (Oslo-Asker) Symphysurus angustatus (185891)
Tremadocian - Floian485.4 - 470.0Norway (Oslo-Asker) Symphysurus angustatus (190979)
Tremadocian - Floian485.4 - 470.0Sweden Symphysurus angustatus (3194)
Tremadocian - Floian485.4 - 470.0Norway (Eiker-Sandsvær) Symphysurus angustatus (190921)
Tremadocian - Floian485.4 - 470.0Norway Symphysurus angustatus (190970 190982)
Lancefieldian484.3 - 474.9Norway (Oslo-Asker) Symphysurus angustatus (190975)
Floian477.7 - 470.0France (Montagne Noire) Symphysurus angustatus (20827)
Billingen474.8 - 471.1Sweden Symphysurus angustatus (192718)