Austroplaca soropelta is a species of saxicolous and muscicolous (rock- and moss-dwelling), crustose lichen in the family Teloschistaceae.

The type specimen was collected from Greenland, specifically on the rocky slopes northeast of the Arctic Station Godhavn in Disko Island.

The specimen was found growing on basalt, within the south-facing protected crevices of a bird cliff, at an elevation of about 20 m (66 ft).

[5] Austroplaca soropelta is a species of lichen that forms crust-like structures, ranging up to 2 cm in size, on mosses or rocks.

In contrast, in Tierra del Fuego and the Northern Hemisphere, Austroplaca soropelta adopts a saxicolous (rock-dwelling) habit, preferring the shelter of crevices.