†family Iowacystidae Gill and Caster 1960
Soluta - Syringocrinida - Iowacystidae
Synonym: Belemnocystitidae Caster 1967
Parent taxon: Syringocrinida according to F. Noailles et al. 2014
See also Lefebvre and Lerosey-Aubril 2018
Sister taxa: Castericystis, Drepanocystis, Minervaecystidae, Plasiacystidae, Syringocrinus
Subtaxa: Belemnocystites Iowacystis Myeinocystites Scalenocystites
Type: Iowacystis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of United States (16: Illinois, Illinois, Iowa, Iowa, Minnesota, Oklahoma collections)
Total: 16 collections including 21 occurrences