Fig. 17

Cyrtocrinus praenutans n. sp., Lower Bathonian, La Pouza, secundibrachials. a Secundibrachial, a1 adoral (pinnule socket to the right), a2 distal, M10846. b Distal facet of secundibrachial, paratype, pinnule socket is on extension at right, M10881. c Distal view of small asymmetric secundibrachial with verrucose surface, M10859. d Oblique lateral-distal view of block-like secundibrachial with pinnule socket on high side, M 10898. e Distal view of secundibrachial with high extension, pinnule socket is on low part at right, M10879. f Adoral view of secundibrachial with pit-like proximal muscle fossa facet at lower left, M10909. g Distal view of small secundibrachial with pronounced verrucose surface, M10834. h Adoral view of thin secundibrachial, M10869. i Synostosial facet of low weakly verrucose secundibrachial lacking pinnule socket, M10860. j Verrucose secundibrachial, j1 proximal synostosial facet, j2 distal muscular facet with pinnule socket, M10857. k Small, asymmetric thin secundibrachial, k1 adoral view, k2 upper facet, axial canal is below the food groove at right, M10995. Scale bars 1 mm, the short one only refers to Fig. 15e