Anthozoa - Stauriida - Streptelasmatidae
Parent taxon: Streptelasma according to Dybowski 1873
Sister taxa: Streptelasma (Grewingkia), Streptelasma (Streptelasma), Streptelasma arcticum, Streptelasma bystrowi, Streptelasma collucata, Streptelasma compactum, Streptelasma complanata, Streptelasma concamerata, Streptelasma concavum, Streptelasma corniculum, Streptelasma curvatum, Streptelasma cylindricum, Streptelasma cyrtum, Streptelasma dispandum, Streptelasma distinctum, Streptelasma divaricans, Streptelasma duncani, Streptelasma eccentricum, Streptelasma etnaense, Streptelasma fevida, Streptelasma hiumica, Streptelasma linnarssoni, Streptelasma luminosa, Streptelasma medioseptatum, Streptelasma oanduensis, Streptelasma ostrogothicum, Streptelasma prima, Streptelasma primum, Streptelasma prolongatum, Streptelasma rectum, Streptelasma rostrata, Streptelasma solida, Streptelasma tennysoni, Streptelasma undulata
Subtaxa: Streptelasma (Kenophyllum) canaliferum Streptelasma (Kenophyllum) siluricum Streptelasma (Kenophyllum) subcylindricum
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Estonia (18 collections), the Russian Federation (1)
Total: 19 collections each including a single occurrence