Sceptaspis lincolnensis Branson 1909 (trilobite)

Trilobita - Phacopida - Pterygometopidae

Alternative combinations: Calyptaulax lincolnensis, Pterygometopus lincolnensis

Synonyms: Calliops huronensis Okulitch 1942, Calyptaulax calderi Wilson 1947, Calyptaulax conjuens Foerste 1919, Calyptaulax ottawanus Okulitch 1942, Pterygometopus conjuens Foerste 1919

Full reference: E.B. Branson. 1909. The fauna of the residuary Auburn chert of Lincoln County, Missouri. Transactions of the Academy of Science of St. Louis 18(4):39-52

Belongs to Sceptaspis according to R. Ludvigsen and B. D. E. Chatterton 1982

See also Branson 1909 and Delo 1940

Sister taxa: none

Type specimens:

  • Sceptaspis lincolnensis: UC 11484c, a cephalon/head (cranidium). Its type locality is Residuary Auburn Chert Beds, east of Auburn , which is in a Turinian carbonate claystone in the Decorah Formation of Missouri.
  • Calliops huronensis:
  • Calyptaulax calderi:
  • Calyptaulax conjuens:
  • Calyptaulax ottawanus:

Ecology: fast-moving low-level epifaunal carnivore


• Ordovician of Canada (4: Northwest Territories, Ontario, Quebec collections), United States (17: Illinois, Iowa, Iowa/Wisconsin, Minnesota, Missouri)

Total: 21 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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