[3] Ernietta have been recovered from present-day Namibia,[4] and are a part of the Ediacaran biota, a late Proterozoic radiation of multicellular organisms.

[8] Hydrodynamic modeling carried out by Gibson et al. in 2019 assumed that Ernietta inhabited shallow marine environments in aggregations.

The presence of this seam and offset symmetry unites the Ernettiomorpha, which includes taxa more similar to Ernietta (for example, Pteridinium, Swartpuntia, and Mietta) than to the rangeomorphs.

[9] His study also shows that specimens have been found covered with thin layers of wind-drift sand of alluvial levees.

[10] All occurrences of Ernietta are known from the Nama Group (specifically, the Kuibis and Schwarzrand subgroups) of present-day Namibia.

[5] A significant discovery of this taxon was reported in 2016, at the Farm Aar field site in southern Namibia, which recovered a number of specimens preserved in life position in the water column.

[2] Other reports of Ernietta exist outside Namibia, including Nevada, USA [11] An occurrence in the Windermere group of British Columbia, Canada has not yet been described.

[2] Ediacaran fossils are difficult to assign to taxonomic classifications based on modern organisms, as they have no living representatives.