Trace fossils with "Edicara-like" enigmatic structures: Middle Cambrian, St Petersburg Region, Russia
Nikolai M. Natalin1, Radek2 Mikulas & Andrei V. Dronov3.
1 Department of Geology, University of St Petersburg, Universitetskaya Emb., St Petersburg, Russia
2 Institute of Geology, Academy of Sciences of the Czech Republic, Rozvojova 269, 165 02 Praha; e-mail: miculas@gli.cas.cz
3 Paleontological Institute, Russian Academy of Sciences, Profsouznaya Str. 123, 117647 Moscow, Russia; e-mail: dronov@ginras.cz