Onega stepanovi placed in phylum Proarticulata, as the segments in recently discovered, exceptionally well-preserved fossils display the glide, or "staggered", symmetry characteristic of the majority of proarticulatans. Imprints of "Onega stepanovi" have been found in the Verkhovka and Zimnie Gory Formations of the Ediacaran (Vendian) rocks of the Arkhangelsk Region, Russia. All the fossil specimens are negative imprints on the bases of fine-grained sandstone beds with the "elephant skin" and tubercle texture diagnostic of microbial mats. The same bedding planes contain various other Ediacaran species: "Cyclomedusa", "Ediacaria", palaeopascichnids, "Eoporpita", "Yorgia", "Andiva", "Archaeaspinus", "Vendia", "Dickinsonia", "Anfesta", "Albumares", "Tribrachidium", "Kimberella", "Parvancorina", "Charniodiscus" and others.
Republic of Karelia of high-quality fresh water. Lake Ladoga (Finnish: "Laatokka") and Lake Onega ("Ääninen") are the largest lakes in Europe. Other lakes include: The lakes Ladoga and Onega are located in the south of the republic. White Sea coast: In Lake Onega: In Lake Ladoga: The majority of the republic's territory (148,000 km², or 85%) is composed of state forest stock. The total growing stock of timber resources in the forests of all categories and ages is 807 million m³. The mature and over-mature tree stock amounts to 411.8 million m³, of which 375.2 million m³ is coniferous. Fifty useful minerals are