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Cernuolimbus
Taxonomy
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).
It was assigned to Ptychopariida by Sepkoski (2002); to Pterocephaliidae by Jell and Adrain (2002); and to Pterocephaliinae by Palmer (1960) and Hopkins (2011).
Species
C. arcticus, C. depressus, C. granulosus, C. laevifrons, C. monilis, C. orygmatos (type species), C. semigranulosus
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Cernuolimbus Palmer p. 84 |
| 2002 | Cernuolimbus Jell and Adrain p. 356 |
| 2002 | Cernuolimbus Sepkoski |
| 2011 | Cernuolimbus Hopkins p. 1144 |
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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
†Cernuolimbus semigranulosus Palmer 1960
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. J. Hopkins 2011 | Amended 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). |