†family Pentamerocrinidae Jaekel 1918 (Sea lily)
Crinoidea - Inadunata - Pentamerocrinidae
Parent taxon: Inadunata according to S. V. Rozhnov 2016
Sister taxa: Cladida, Dicirrocrinus, Disparata, Disparida, Fistulata, Larviformia, Merocrinidae, Metabolocrinidae, Paractocrinidae, Passalocrinus, Poteriocrinidae, Thuringocrinus
Subtaxa: Pentamerocrinus
Type: Pentamerocrinus
Ecology: stationary upper-level epifaunal suspension feeder
Distribution:
• Ordovician of the Russian Federation (2 collections)
Total: 2 collections each including a single occurrence