†Helicelasma rusticum Billings 1858 (horn coral)
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Anthozoa - Stauriida - Streptelasmatidae
Alternative combination: Streptelasma rusticum
Belongs to Helicelasma according to B. Neuman 1969
Sister taxa: Helicelasma fossulatum, Helicelasma giganteum, Helicelasma randi, Helicelasma simplex, Helicelasma whittardi
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Canada (8: Nunavut, Ontario, Québec collections), United States (13: Colorado, Kentucky, Michigan, Ohio, Tennessee)
Total: 21 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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