Girvanella problematica Nicholson and Etheridge 1878

Hormogoneae - Oscillatoriales - Girvanellaceae

Full reference: H. A. Nicholson and R. Etheridge. 1878. A Monograph of the Silurian Fossils of the Girvan District in Ayrshire. Vol. I, fasc. I.

Belongs to Girvanella according to A. Wood 1957

Sister taxa: Girvanella mexicana, Girvanella richmondensis

Type specimen: V. 34566. Its type locality is eastern end of Tormitchell Quarry, which is in an Abereiddian carbonate limestone in the Stinchar Formation of the United Kingdom.

Ecology: stationary epifaunal "photoautotroph"

Distribution:

• Cretaceous of Egypt (1 collection)

• Devonian of Belgium (1), China (8), Germany (5)

• Silurian of Canada (1: Québec), Ukraine (1), United States (3: Alaska)

• Arenig of Australia (1)

• Ordovician of Australia (2), China (2), Norway (1), the United Kingdom (2)

• Cambrian of Canada (1: Northwest Territories), Mongolia (1), the Russian Federation (2)

Total: 32 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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