Tetraporina horologia Staplin, 1960 ex Playford, 1963

Now Horologinella. Originally Tetraporina, subsequently (and now) Horologinella; see also Azonotetraporina (a presumed angiospermous pollen genus; name not validly published). The name Azonotetraporina horologia was not validly published in Staplin, 1960 since the generic name Azonotetraporina is not validly published.
Holotype: Staplin, 1960, pl.1, fig.4
Age: Carboniferous (Late Mississippian)