File:Skolithos declinatus.gif

Summary
A vertical burrows Skolithos declinatus from the Vendian (Ediacaran) beds of the White Sea area, Russia. Date Source

Sokolov, B. S. and Iwanowski, A. B., eds. (1985). "Vendian System: Historical–Geological and Paleontological Foundation, Vol. 1: Paleontology". Moscow: Nauka, (in Russian) Author

Sokolov, B. S. and Iwanowski, A. B., eds. (1985). "Vendian System: Historical–Geological and Paleontological Foundation, Vol. 1: Paleontology". Moscow: Nauka, (in Russian)