Pterygometopine trilobites from the Ordovician of Baltoscandia

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Pterygometopine trilobites from the Ordovician of Baltoscandia

  • Volume / Part: 36 / 4
  • Publication Date: December 1993
  • Page(s): 743 - 769
  • Authored By: Valdar Jaanusson and Lars Ramsköld

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A revision of the Pterygometopinae from Baltoscandia has revealed that the subfamily is more diverse at the generic level than previously known. New genera are Ingriops, Oelandiops, Upplandiops, and Keilapyge. The earliest species of Achatella are included in the new subgenus A. (Vironiaspis). The new species Oelandiops mirificus, Upplandiops calvus, Estoniops maennili, and E. fjaeckensis are described. Upplandiops calvus differs from most other dalmanitaceans in having only ten thoracic segments.

Palaeontology - Volume 36 Part 4 Pages 743-769



Palaeontology - Volume 36 Part 4 Pages 743-769

Citations

JAANUSSON, V., RAMSKÖLD, L. 1993. Pterygometopine trilobites from the Ordovician of Baltoscandia. Palaeontology, 36, 4, 743–769.