Anthozoa - Stauriida - Kleopatrinidae

Alternative combination: Thysanophyllum major

Synonym: Thysanophyllum regressum Fedorowski 1965

Belongs to Protowentzelella according to J. Fedorowski et al. 2007

Sister taxa: Protowentzelella aseptatum, Protowentzelella columellata, Protowentzelella cystosa, Protowentzelella dubiosa, Protowentzelella gigantea, Protowentzelella grandis, Protowentzelella hyporiphaea, Protowentzelella kunthi, Protowentzelella longiseptata, Protowentzelella minima, Protowentzelella noinskyi, Protowentzelella permica, Protowentzelella perpasta, Protowentzelella regularis, Protowentzelella shastensis, Protowentzelella variabilis

Ecology: stationary epifaunal suspension feeder