Porphyrocrinus with 5 unbranched rays, ~10 short disk-like proximal columnals, tall middle columnals (mesistele) ... [details]
Porphyrocrinus with more than 10 arms; at least some rays branched at primibrachial 8 and sometimes again at ... [details]
Celtic Sea, N Atlantic, W of Brittany, France. Depth range: 1,300-1,420 (1,470) m. [details]
NE Atlantic continental margin of Europe from W of Brittany and S of Ireland to NW and W of Iberian Peninsula. ... [details]