Ausia fenestrata is a curious Ediacaran period (635 – 539 million years ago)[2] fossil represented by only one specimen 5 cm long from the Nama Group, a Vendian to Cambrian group of stratigraphic sequences deposited in the Nama foreland basin in central and southern Namibia.

[1] It has similarity to Burykhia from Ediacaran (Vendian) siliciclastic sediments exposed on the Syuzma River of Arkhangelsk Oblast, northwest Russia.

[3][4][5] This fossil is of the form of an elongate bag-like sandstone cast (Nama-type preservation) tapering to a cone on one end.

The surface of the fossil is covered with oval depressions ("windows") regularly spaced over the surface in the manner of concentric/parallel rows.

The taxonomic identity of Ausia is unresolved.