see text[2] Bangia is an extant genus of division Rhodophyta that grows in marine or freshwater habitats.

Bangia has small thalli with rapid growth and high reproductive output, and exhibits behavior characteristic of r-selected species.

Bangia is a red alga that arises from a discoid holdfast and short stipe consisting of the extensions of rhizoidal cells.

Carpospores germinate to form the diploid filamentous conchocelis phase, which produces conchosporangial branches bearing conchosporangia, each containing a single conchospore.

Silicified peritidal carbonate rocks have been found off Somerset Island, arctic Canada, which contain fossils of well-preserved bangiophyte red algae (Bangiomorpha).

This resolution distinguished these fossils from other pre-Ediacaran eukaryotes and contributes to evidence that multicellular algae diversified before the Ediacaran radiation of large animals.