Aleksey Nagovitsyn

The oldest animals appear in the fossil record among Ediacara biota communities. They prelude animal-dominated ecosystems of the Phanerozoic and may hold clues to the appearance of modern animal phyla in the Cambrian explosion. However, little is known about the phylogeny of the Ediacaran organisms and even less about their diet and feeding behavio...

Several specimens of Dickinsonia cf. D. menneri, originating from a single burial event at the Lyamtsa locality of the late Ediacaran (Vendian) in the southeastern White Sea area, Russia, represent deviations from normal morphology: a reduction in the total length of the body; the loss of portions of the body; various deformations of the transverse...

Due to homonymy, a new name Cephalonega Fedonkin, nom. nov. was proposed for the genus of Vendian macroorganisms, Onega Fedonkin. The improved diagnosis of this genus and evidence that this genus belongs to Proarticulata, an extinct phylum of Metazoa, are given. A detailed characterization of the phylum and all Proarticulata classes is given for th...

We describe traces of macroorganisms in association with the body imprints of trace-producers from Ediacaran (Vendian) deposits of the southeastern White Sea region. They are interpreted as traces of locomotion and are not directly related to a food gathering. The complex remains belong to three species: Kimberella quadrata, Dickinsonia cf. menneri...

Proarticulata, the largest mobile animals of the Late Precambrian, inhabited shallow marine basins of normal salinity in Baltica (eastern and northern Europe) and East Gondwana (Australia) in the Late Ediacaran. They represented a substantial part of benthic palaeocommunities of macroorganisms inhabiting microbial mats, and at least some of them fe...

Proarticulata, the largest mobile animals of the Late Precambrian, inhabited shallow marine basins of normal salinity in Baltica (eastern and northern Europe) and East Gondwana (Australia) in the Late Ediacaran. They represented a substantial part of benthic palaeocommunities of macroorganisms inhabiting microbial mats, and at least some of them fe...

Proarticulata, which include well-known genus Dickinsonia, were the largest mobile animals of the Ediacaran Period. Body fossil impressions, classified as Proarticulata, were formed by bilateral objects, divided in transverse direction into two rows of "half-segments". It has been previously thought that the body of the animal was isomeric, consist...