See text Lycomeia Pleuromeia is an extinct genus of lycophytes related to modern quillworts (Isoetes).

Its sedimentary context in monospecific assemblages on immature paleosols, is evidence that it was an opportunistic pioneer plant that grew on mineral soils with little competition.

The top of the cone carries microsporophylls, the lower part megasporophylls, and both types may be intercalated midlength.

Megaspores have a layered outer skin with a small trilete mark, are also hollow, round to ovoid and up to 300–400 μm in diameter.

[3] Dense populations of Pleuromeia, in the aftermath of Permian–Triassic extinction event, are recorded around the world from habitats ranging from semi-arid to tidal.

[3] When the Cathedral of Magdeburg was under repair during the 1830s, a block of sandstone crashed and split open, revealing a fragment of the stem of Pleuromeia sternbergi.

The sandstone had been mined in a quarry near Bernburg (Saale) where later on numerous specimens of Pleuromeia were found, including cones.