A Permian Productoid Brachiopod: Life History

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Science  29 Apr 1966:
Vol. 152, Issue 3722, pp. 660-662
DOI: 10.1126/science.152.3722.660


Spine arrangements on silicified specimens of Waagenoconcha abichi (Waagen) from the Khisor Range of West Pakistan suggest that the juvenile shell attached itself to a foreign object, and that the adult shell lay on its ventral valve in the substrate, anchored and stabilized by a dense corona of long slender spines around the ventral visceral disc.