Port of Arkhangelsk Port of Arkhangelsk Port of Arkhangelsk () is a major seaport at Arkhangelsk, located at the mouth of the Northern Dvina River, 50 km from the Dvina Bay of the White Sea. The important point links with coastal areas of the Russian North. For much of Russia's history this was Russia's main centre of international maritime trade, conducted by the so-called Pomors ("seaside settlers") from Kholmogory. During the Soviet period it was a major naval and submarine base of the Soviet Navy. It is still a major naval base of the Northern Fleet of the Russian Navy. Arkhangelsk sea port
Onega stepanovi by an undivided zone. The surface of the undivided region of "Onega" is covered with small tubercles. "Onega" was originally described by Mikhail Fedonkin as a problematic organism, being grouped together with "Vendia", "Praecambridium" and "Vendomia" as possible stem-group arthropods due to a vague similarity with primitive Cambrian trilobites and arthropods. In 1985 Mikhail Fedonkin erected Phylum Proarticulata, in which he placed: "Onega", "Dickinsonia", "Palaeoplatoda", "Vendia", "Vendomia", "Praecambridium" and "Pseudovendia sp.", although he did not exclude the possibility that "Onega" may still be related to various lower Cambrian arthropods, such as "Skania". Andrey Yu. Ivantsov has proposed that "Onega" be