Fig. 13From: Asteroidea (Echinodermata) from the Oxfordian (Late Jurassic) of Savigna, Départment du Jura, FrancePlumaster ophiuroides Wright, 1863. Holotype, Lower Jurassic, Pliensbachian, Robin Hood’s or Skinningrove Bay, Yorkshire, UK (CAMSM J 13784); a1 actinal surface, a2 enlargement of four radii and part of mouth frame, actinal surface. Note broad, short adambulacrals with transverse single row of large spine bases. Scale bar 1 cmBack to article page