A monotypic genus, it contains the single species Geasteroides texensis, described by American mycologist William Henry Long in 1917.
[2] However, later changes in the nomenclatural rules meant that names of gasteroid species published before 1801 no longer had priority, rendering Terrostella illegitimate.
[4] Geasteroides texensis has a fruit body that splits open in maturity in a star-like fashion to reveal a spherical inner spore sac (gleba).
In some mature, weathered specimens, the gleba may be completely absent, with only the interior stipe and corky base remaining in the endoperidium.
[1] The species is known from Texas, where it grows in loamy soil around the decaying stumps of post oak (Quercus stellata).