Nyonoksa Nyonoksa Nyonoksa () is a rural locality (a "selo") under the administrative jurisdiction of Severodvinsk Town of Oblast Significance, Arkhangelsk Oblast, Russia. It is located at the coast of the Onega Bay of the White Sea (the Summer Coast) northwest of the city of Severodvinsk. In the vicinity of Nyonoksa there is also a rocket launching site of the Russian Navy with the same name. Since 1965 numerous rockets of the types R-27, R-29, Rif and Gnom were launched from Nyonoksa. These rockets were prototypes for the employment on missile submarines. The launching site is located in the settlement of
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.