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Fig. 9 | Swiss Journal of Palaeontology

Fig. 9

From: Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Ardèche, France

Fig. 9

Secundibrachials with syzygies and cryptosyzygies of Isocrinida, Lower Bathonian, La Pouza. a Cryptosyzygy, M10878. b Proximal facet of epizygal (other facet is muscular with pinnule socket), M10885. c Epizygal, c1 proximal facet, c2 distal facet with pinnule socket (arrow), M10991. d Epizygal, d1 proximal facet, d2 distal facet with pinnule socket (arrow), M10883. e Cryptosyzygy (other facet is muscular without pinnule socket), M 10892. Scale bars 1 mm

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