†family Stylostromatidae Webby 1993 (stromatoporoid sponge)
Stromatoporoidea - Labechiida - Stylostromatidae
Parent taxon: Labechiida according to C. W. Stearn et al. 1999
Sister taxa: Aulaceratidae, Labechiidae, Lophiostromatidae, Platiferostromatidae, Rosenellidae, Stromatoceriidae
Subtaxa: Pennastroma Stylostroma
Ecology: stationary epifaunal suspension feeder-photosymbiotic
Distribution:
• Devonian of Canada (1: Alberta collection), Poland (1)
• Silurian of the Russian Federation (1)
• Ordovician of Australia (2), China (7), the Russian Federation (1)
Total: 13 collections each including a single occurrence