Fig. 4
From: Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Ardèche, France
Isocrinus nicoleti (Thurmann in Thurmann & Étallon), Upper Bajocian–Lower Bathonian, Pont des Étoiles. a Pluricolumnal with complete noditaxis of eight columnals, a1 cryptosymplectial facet of infranodal on top, a2 lateral view, M10927. b Pluricolumnal with incomplete noditaxis, b1 symplectial facet, b2 lateral view, M10928. c Proximal (upper) facet of proximal nodal, M10929. d Proximal (upper) facet of nodal from mesistele, M10930. Scale bar 1 mm