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Symphysurus

Artiopoda - Asaphida - Nileidae

Taxonomy
Symphysurus was named by Goldfuss (1843). Its type is Asaphus palpebrosus.

It was assigned to Nileidae by Fortey (1975), Hoel (1999), Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).

Species
S. angustatus (syn. S. socialis), S. arcticus, S. goldfussi, S. microphthalmus, S. palpebrosus
Species lacking formal opinion data
S. calvus, S. kientchensis, S. pater, S. pater, S. subquadratus, S. superstes, Sympysurus planarius
Entered
by J. Sepkoski on 2003-01-23; modified by B. Kröger on 2017-12-04

Synonymy list
YearName and author
1843Symphysurus Goldfuss
1975Symphysurus Fortey
1999Symphysurus Hoel
2002Symphysurus Jell and Adrain p. 450
2002Symphysurus 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
superfamilyCyclopygoideaRaymond 1925
familyNileidaeAngelin 1854
genusSymphysurusGoldfuss 1843

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. †Symphysurus Goldfuss 1843
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†Symphysurus angustatus Sars and Boeck 1838
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Invalid names: Symphysurus socialis Linnarsson 1869 [synonym]
†Symphysurus arcticus Fortey 1975
†Symphysurus goldfussi Walcott 1884
†Symphysurus palpebrosus Barrande 1852
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
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-08 12:34:24
Modified: 2009-06-08 14:34:24
Source: g = genus, f = family, o = order, c = class
References: Hendy 2009, Hendy et al. 2009, Aberhan et al. 2004

Age range: base of the Varangu to the top of the Onnian or 483.80000 to 449.50000 Ma

Collections (83 total)


Time interval Ma Country or state Original ID and collection number
Tremadocian486.85 - 477.1Morocco S. sp. (96112)
Tremadocian486.85 - 477.1United Kingdom S. microphthalmus (278129)
Tremadocian486.85 - 477.1Russian Federation (Siberia) S. sp. (205377)
Tremadocian486.85 - 477.1China (Zhejiang) S. sp. (64594) Sympysurus planarius, S. sp. (278146)
Tremadocian - Floian486.85 - 471.3Norway S. angustatus (190970 190982)
Tremadocian - Floian486.85 - 471.3Norway (Eiker-Sandsvær) S. angustatus (190921)
Tremadocian - Floian486.85 - 471.3Sweden S. sp. (3195)
Tremadocian - Floian486.85 - 471.3Norway (Oslo-Asker) S. angustatus (190979)
Tremadoc486.4 - 477.1China (Guizhou) S. sp. (7363 7364 7366 7368 7387)
Tremadoc486.4 - 477.1China (JiangXi) S. sp. (7759 7765)
Tremadoc486.4 - 477.1China (ZheJiang) S. sp. (7774 7780 7815 7816)
Tremadoc486.4 - 477.1China (Hubei) S. sp. (7728)
Tremadoc486.4 - 477.1China (Hunan) S. sp. (7703)
Tremadoc486.4 - 477.1China (JiLin) S. sp. (21144)
Tremadoc486.4 - 477.1France (Montagne Noire) S. angustatus (201717) S. sp. (20819 20829 20832 76571 76572)
Tremadoc486.4 - 477.1Sweden S. angustatus (3107 3108) S. sp. (3110)
Tremadoc486.4 - 477.1Colombia S. sp. (8864)
Tremadoc486.4 - 477.1Morocco S. sp. (20998)
Tremadoc486.4 - 477.1China (Zhejian) S. kientchensis (235380)
Lancefieldian484.3 - 474.9Norway (Oslo-Asker) S. angustatus (190975)
Varangu483.8 - 482.9Norway (Oslo) S. angustatus (3183)
Varangu483.8 - 482.9Sweden S. angustatus (172663)
Varangu483.8 - 482.9Norway (Oslo-Asker) S. angustatus (185891)
Hunneberg482.9 - 475.6Sweden S. angustatus (3194)
Floian477.1 - 471.3France (Montagne Noire) S. angustatus (20827)
Klabava477.1 - 469.4Czechia (Prague) S. pater (76457)
Klabava477.1 - 469.4France (Montagne Noire) S. sp. (20824)
Arenig477.1 - 468.0Argentina S. sp. (8777)
Arenig477.1 - 468.0China (YunNan) S. sp. (7732)
Arenig477.1 - 468.0China (GanSu) S. sp. (8568)
Arenig477.1 - 468.0Sweden S. sp. (3196 3198 3199)
Arenig477.1 - 468.0China (QingHai) S. sp. (8687)
Arenig477.1 - 468.0China (AnHui) S. sp. (7841 7845)
Arenig477.1 - 468.0Morocco S. sp. (20979)
Arenig477.1 - 468.0China (Hunan) S. sp. (7700)
Arenig477.1 - 468.0France (Montagne Noire) S. sp. (20821 20823 20831)
Billingen475.6 - 471.3Norway (Spitsbergen) S. arcticus (106473)
Billingen475.6 - 471.3Sweden S. angustatus (192718) S. sp. (192904)
Blackhillsian475.3 - 471.3Norway (Spitsbergen) S. arcticus (106472 106475)
Volkhov471.3 - 469.1Sweden (Bornholm) S. spp. (173564 173600 173625 173626)
Whiterockian471.3 - 457.3USA (Utah) S. sp. (298)
Darriwilian469.4 - 458.2Iran S. subquadratus (66865)
Kunda469.1 - 464.3Sweden S. palpebrosus (188217 188300 188302)
Llanvirn468.0 - 458.2China (GanSu) S. sp. (20765)
Llanvirn468.0 - 458.2Czechia (Prague) S. sp. (76458)
Llandeilo - Caradoc461.1 - 449.5China (GanSu) S. sp. (20763)
Costonian - Harnagian458.2 - 457.2China (GanSu) S. sp. (8551)
Longvillian457.2 - 455.0China (ShanXi) S. sp. (7885)
Actonian - Onnian454.0 - 449.5China (Hunan) S. sp. (7688)
Katian452.8 - 445.2Sweden (Scania) S. superstes (278880 278895 278897 278898 278902)