Fig. 7
From: Balanocrinus and other crinoids from Late Jurassic mudstones of France and Switzerland
Balanocrinus brachiospina n. sp., early Late Oxfordian, Savigna. a Pluricolumnal with nodal, M11277, a1 proximal ( upper) facet, a2 lateral. b Facet of weathered internodal with galleried α-stereom in the area of the interradial areolae and labyrinthic β-stereom along the radii and margin, M11278. c Broken pluricolumnal showing axial cross-section in the area of the areolae with through-going ligaments (α-stereom) and labyrinthic β-stereom around the latus, the lumen of the axial canal is filled by sediment, M11279. d Pluricirral with epizoic bryozoan “Berenicea”, M11280. e Pluricolumnal with cirrus, M11281. f Pathological pluricolumnal with stunted columnals and a nodal with only one cirrus socket, M11282. g Facet of proximal cirral, M11283. h Distal part of pluricirral with small terminal claw, M11284. i Distal part of pluricirral with higher cirrals and larger terminal claw, M11285. j Pluricirral with stunted element, M11363