Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Sigmocheilus flabellifer

Trilobita - Olenida - Pterocephaliidae

Taxonomy
Dikelocephalus flabellifer was named by Hall and Whitfield (1877). Its type specimen is USNM 24569, a pygidium, and it is a 3D body fossil.

It was recombined as Sigmocheilus flabellifer by Palmer (1965).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1877Dikelocephalus flabellifer Hall and Whitfield p. 227
1960Sigmocheilus serratus Palmer p. 91 figs. Pl. 10, fig. 1
1965Sigmocheilus flabellifer Palmer p. 73

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderOlenida
familyPterocephaliidaeKobayashi 1935
subfamilyPterocephaliinae
genusSigmocheilus
speciesflabellifer(Hall and Whitfield 1877)

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.

Sigmocheilus flabellifer Hall and Whitfield 1877
show all | hide all
Invalid names: Sigmocheilus serratus Palmer 1960 [synonym]
Diagnosis
No diagnoses are available