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Rhopalastrum oracutibrachium Caulet, 1986

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Spongodiscid with three simple, undivided, spongy arms. Triangular shells, equilateral. Patagium present. Central structure partly obscured by spongy network, consisting of 5-6 concentric chambered rings. Spongy arms with sharp edges and ragged ends.
Dimensions:
Arm length, 120-130Ám; Inner disk diameter, 70-80Ám.
Remarks:
Some Pleistocene froms present well-marked arm edges, but these forms are smaller and their arm edges less sharp and thick.
Caulet 1986


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