Pennatulaceans.
Phjylum : Cnidaria, Class: Anthozoa, Order : Pennatulacea.
Sometimes known as soft corals or Octocorals. These would have been anchored to the sea bed and floated in the sea currents as they fed. They are extremely rare as fossils. Beautiful specimen on both surfaces. Weird and wonderful.
Lower Carboniferous, Yoredale Series.
Askrigg Block, North Yorkshire.
Specimen : 14 x 5.5 cm.
