Fig. 8

Radial (a) and brachials (b–k) of Isocrinida, Lower Bathonian, La Pouza. a Radial, a1 proximal (lower) with facets to basals, a2 distal, M10853. b Secundibrachial with symmorphy, b1 adoral, b2 distal (cryptosyzygial to synostosial facet), M 10856. c Distal facet of first primibrachial with verrucose aboral surface, M10888. d Proximal facet of first primibrachial, M 10889. e Cryptosyzygial facet of secundibrachial with verrucose aboral surface, M10882. f Distal muscular facet of secundibrachial with verrucose aboral surface and pinnule socket, M10890; g Axillary second primibrachial, g1 proximal facet (cryptosyzygy), g2 distal (muscular facets), M10948. h Distal muscular facet of secundibrachial with pinnule socket, M10886. i Distal muscular facet of wide secundibrachial with pinnule socket, M10946. j Epizygal secundibrachial, j1 proximal facet with syzygy restricted to margin, j2 distal muscular facet with pinnule socket, M10949. k Wide secundibrachial with flat relief, M10945. Scale bars 1 mm