New Vendian Saarinid Microorganisms from the Siberian Platform

Resumo

Vendian (Ediacaran) tubiform organic-walled segmented microfossils from the East Siberian Platform, with no biological interpretation, were previously assigned to the Incertae sedis genus Kursovia Kolosov et Rudavskaja, 1984 and identified as Kursovia sp. 4. The re-examination of these fossils showed that these are new saarinid microorganisms that resemble Saarina juliae in the tubiform shape, segmented structure, presence of crenulae on free (upper) edge of segments and in the prominence of these features, but are smaller by one–two orders of magnitude. They are herein assigned to a new genus and species Saarinomorpha infundibularis Kolosov et Sofroneeva, gen. et sp. nov. in the family Saarinidae Sokolov, 1965.