†Sigmocheilus flabellifer Hall and Whitfield 1877

Trilobita - Olenida - Pterocephaliidae

Alternative combination: Dikelocephalus flabellifer

Synonym: Sigmocheilus serratus Palmer 1960

Belongs to Sigmocheilus according to A. R. Palmer 1965

See also Palmer 1960

Sister taxa: Sigmocheilus compressus, Sigmocheilus delicatus, Sigmocheilus grata, Sigmocheilus pogonipensis

Type specimens:

  • Sigmocheilus flabellifer: USNM 24569, a pygidium
  • Sigmocheilus serratus: USNM 136898a, a cephalon/head (cranidium).

Distribution:

• Cambrian of Canada (1: Yukon collection), United States (10: Nevada)

Total: 11 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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