New anatomical features revealed in some Early Cambrian calcareous microfossils suggest comparison with Rhodophyta (red algae), which makes it possible to define their taxonomic position. A taxonomically rich Early Cambrian paleobiocoenosis has been discovered in northern Tien Shan, which exemplifies the existence on earth at 535-513 Ma (million years) of morphologically complex fungiform microorganisms and red algae in a shallow-water biotope where environmental conditions favorable for life were created as a result of submarine volcanic eruptions.
 Kolosov, P.N., Maksumova, R.A., Korolev, V.G. and Konovod, A.V. (1983) A Record of Plant Microorganisms from the Lower Cambrian in the Karakatta Formation of Northern Tien Shan. Izvestia Akademii Nauk SSSR. Seriya Geologicheskaya, 3, 123-128.
 Kolosov, P.N. and Sofroneeva, L.S. (2012) Calcareous Microfossils from the Karakatty Formation (Lower Cambrian) of the Northen Tien Shan. Paleontological Journal, 46, 430-432.
 Kolosov, P.N. (2013) Fungiform Organisms from the Early Cambrian of the Northern Tien Chan. Paleontological Journal, 47, 549-553.
 Kolosov, P.N. (2013) The Role of Red Algae in Abrupt Appearance of Animals in the Early Cambrian on Siberian Platform. American Journal of Plant Sciences, 4, 60-64.