Rugosa
Species

Helicelasma poulseni (Cox, 1937)

https://files.geocollections.info/large/71/27/712737ad-e64b-4f02-ab48-d53dec3cfc94.jpghttps://files.geocollections.info/large/21/76/2176c3a8-85c4-4dc2-a826-6048b0d8be4e.jpg
Synonymy list
1937     Streptelasma poulseni — Cox , pp. 9,10 , fig. 2:8,9
1975     Helicelasma poulseni — McLean & Webby , pp. 233
1981     Helicelasma poulseni (Cox, 1937) — Elias , pp. 20
Classification
Organism groupBiota
KingdomAnimalia
PhylumCnidaria
ClassAnthozoa
SubclassRugosa
OrderStauriida
SuborderStreptelasmatina
FamilyStreptelasmatidae
SubfamilyStreptelasmatinae
GenusHelicelasma
Speciesbystrowi
poulseni
simplex