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Sphaerocoryphe robusta

Trilobita - Phacopida - Cheiruridae

Sphaerocoryphe robustus was named by Walcott (1875) [Holotype also figured by Shaw (1968, Pl. 14, fig. 1) and Ludvigsen (1978, figs. 32D). Hypotypes: GSC 40451, 44254-44270, 40452 (Ludvigsen 1979)]. Its type specimen is MCZ 7567, an exoskeleton, and it is a 3D body fossil.

It was corrected as Sphaerocoryphe robusta by Brett et al. (1999).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1875Sphaerocoryphe robustus Walcott p. 273 figs. figs. 18a, b
1995Sphaerocoryphe robustus Lespérance and Desbiens
1999Sphaerocoryphe robusta Brett et al. p. 300 fig. 8.2

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
subfamilyDeiphoninaeRaymond 1913
genusSphaerocorypheAngelin 1854
speciesrobusta(Walcott 1875)

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.

Sphaerocoryphe robusta Walcott 1875
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No diagnoses are available
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: 2010-01-10 01:31:04
Modified: 2010-01-10 03:31:04
Source: g = genus, f = family, c = class
References: Whittington et al. 1997, Hendy 2009, Aberhan et al. 2004

Age range: base of the Chatfieldian to the top of the Edenian or 453.80000 to 450.20000 Ma

Collections (5 total)

Time interval Ma Country or state Original ID and collection number
Shermanian - Edenian457.3 - 450.2Canada (Northwest Territories) Sphaerocoryphe robustus (24637)
Rocklandian - Kirkfieldian457.3 - 449.6Canada (Northwest Territories) Sphaerocoryphe robustus (24635)
Chatfieldian453.8 - 451.0USA (New York) Sphaerocoryphe robusta (181521)
Edenian451.0 - 450.2Canada (Northwest Territories) Sphaerocoryphe robustus (24636)
Edenian451.0 - 450.2Canada (Quebec) Sphaerocoryphe robustus (163865)