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Cyrtometopus

Trilobita - Phacopida - Cheiruridae

Taxonomy
Cyrtometopus was named by Angelin (1854) [Sepkoski's age data: O l]. It is not extant.

It was reranked as Cheirurus (Cyrtometopus) by Reed (1906).

It was assigned to Cheirurus by Reed (1906); to Cheiruridae by Harrington and Leanza (1957) and Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).

Species
C. clavifrons
Species lacking formal opinion data
C. meridianus

Synonymy list
YearName and author
1854Cyrtometopus Angelin
1906Cheirurus (Cyrtometopus) Reed p. 141
1957Cyrtometopus Harrington and Leanza
2002Cyrtometopus Jell and Adrain p. 363
2002Cyrtometopus Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
genusCyrtometopusAngelin 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.

G. †Cyrtometopus Angelin 1854
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†Cyrtometopus clavifrons Dalman 1827
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivoref
Vision: well-developedg
Created: 2010-01-13 03:56:54
Modified: 2010-01-13 05:56:54
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Whittington et al. 1997, Hendy 2009

Age range: base of the Arenig to the top of the Ashgill or 478.60000 to 443.70000 Ma

Collections (54 total)


Time interval Ma Country or state Original ID and collection number
Tremadoc486.5 - 477.7France (Montagne Noire) C. sp. (20832 76572)
Arenig478.6 - 466.0Argentina C. sp. (8719 8721)
Arenig478.6 - 466.0Sweden C. sp. (3196)
Volkhov471.1 - 469.2Sweden (Bornholm) C. sp. (173564 173600) C. spp. (173625 173626)
Volkhov471.1 - 469.2Russian Federation C. clavifrons (157086 157102 157103 157104 157105 157106 157107 157108 157109 157110 157111 157112 157113 157114 157141) C. sp. (157116 157119 157120 157121 157124 157125 157128 157133 157136) C. sp., C. clavifrons (157117 157126)
Volkhov471.1 - 469.2Sweden C. sp. (198129 198144)
Kunda469.2 - 464.3Russian Federation C. clavifrons (157142 157143 157144)
Kunda469.2 - 464.3Sweden C. affinis (188215 188284) C. affinis, C. sp. (188214 188299) C. affinis, C. sp., C. clavifrons (188210 188219 188222) C. clavifrons (188216 188217 188288) C. sp. (188276)
Early/Lower Llanvirn468.0 - 461.1Norway C. sp. (3180)
Darriwilian467.3 - 458.4Argentina (San Juan) C. sp. (116105)
Ashgill449.5 - 443.7Spain (Aragon) C. meridianus (80725)