one corner of the square calyx of Mamsetia manunis Thin lines of muscle fibres demarcate the coronal muscles of the calyx and longitudinal muscles of the arm

This #FossilFriday i wanted to share this tiny #Staurozoan fossil from the Ediacaran of Newfoundland. It was the paratype of #Haootia but now belongs to #Mamsetia . We consider that it might be the #Stauropolyp. See the coronal muscle of the calyx & 1 arm. compare the arm of a modern #Lucernaria