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Trilobita - Olenida - Pterocephaliidae

Cernuolimbus was named by Palmer (1960) [Sepkoski's age data: Cm Dres-u Cm Fran-l]. It is not extant. Its type is Cernuolimbus orygmatos.

It was assigned to Ptychopariida by Sepkoski (2002); to Pterocephaliidae by Jell and Adrain (2002); and to Pterocephaliinae by Palmer (1960) and Hopkins (2011).

Synonymy list
YearName and author
1960Cernuolimbus Palmer p. 84
2002Cernuolimbus Jell and Adrain p. 356
2002Cernuolimbus Sepkoski
2011Cernuolimbus Hopkins p. 1144

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
familyPterocephaliidaeKobayashi 1935

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. †Cernuolimbus Palmer 1960
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Cernuolimbus arcticus Palmer 1968
Cernuolimbus depressus Palmer 1960
Cernuolimbus granulosus Palmer 1965
Cernuolimbus laevifrons Palmer 1965
Cernuolimbus monilis Stitt et al. 1994
Cernuolimbus orygmatos Palmer 1960
M. J. Hopkins 2011Amended from Palmer (1965b) and Stitt et al. (1994). Anterior border concave. Preglabellar field down- sloping to noticeably convex. Coarse pits or granules in row along anterior border furrow of internal mold (character 6).
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-12-13 23:06:36
Modified: 2009-12-14 01:06:36
Source: f = family, c = class
References: Whittington et al. 1997, Aberhan et al. 2004

Age range: Steptoean or 497.00000 to 493.50000 Ma

Collections (24 total)

Time interval Ma Country or state Original ID and collection number
Steptoean497.0 - 493.5USA (Nevada) C. depressus (110447 122140) C. granulosus (111324 122134 122135 122136) C. laevifrons (110445) C. orygmatos (75269 75270 122139) C. orygmatos, C. semigranulosus (75268)
Steptoean497.0 - 493.5Canada (British Columbia) C. ludvigseni (219685)
Steptoean497.0 - 493.5USA (Arkansas) C. monilis (225281)
Steptoean497.0 - 493.5USA (Nevada and Utah) C. granulosus (74910)
Dresbachian497.0 - 485.4USA (Alaska) C. arcticus (225279 225280) C. longifrons (64800)
Dresbachian497.0 - 485.4Canada (Yukon) C. depressus (55224 55277) C. orygmatos (55233) C. pegakanthodes, C. orygmatos (55225)
Dresbachian497.0 - 485.4USA (Nevada) C. sp. (241)
Furongian497.0 - 485.4USA (California) C. granulosus (226280)
Furongian497.0 - 485.4USA (Utah) C. granulosus (156451)