Microzarkodina

Microzarkodina is an extinct genus of conodonts mainly from the Middle Ordovician of Baltoscandia. The Microzarkodina apparatus probably consisted of 15 or 17 elements: four P, two or four M and nine S elements. The S elements include different Sa, Sb1, Sb2, and Sc element types.[2]

Microzarkodina
Temporal range: Middle Ordovician
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Conodonta
Order:
†Ozarkodinida
Genus:
†Microzarkodina

Species
  • †Microzarkodina bella
  • †Microzarkodina flabellum
  • †Microzarkodina hagetiana
  • †Microzarkodina ozarkodella
  • †Microzarkodina parva
  • †Microzarkodina russica

Use in stratigraphy

The base of the Darriwilian, the fourth stage of the Ordovician, lies just above the North Atlantic Microzarkodina parva conodont zone.

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References
  1. Vom Anfang, Hochstand und Ende eines Epikontinentalmeeres. Maurits Lindström, Geologische Rundschau, March 1971, Volume 60, Issue 2, pages 419-438, doi:10.1007/BF02000464
  2. Morphology, evolution and stratigraphic distribution in the Middle Ordovician conodont genus Microzarkodina. Anita Löfgren and Tatiana Tolmacheva, Earth and Environmental Science Transactions of the Royal Society of Edinburgh, Volume 99, Issue 01, March 2008, pages 27-48, doi:10.1017/S1755691008007056


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