Fig. 8
From: Asteroidea (Echinodermata) from the Oxfordian (Late Jurassic) of Savigna, Départment du Jura, France
Drawings of Tylasteria jurensis ossicles. Savigna 2b horizon, stenocycloides Subzone. Material associated with the individual figured in Fig. 7 (BMNH EE 13940). Circumoral ossicle, in a1 abactinal and a2 actinal aspects. Oral ossicle, in interradial (b1) and radial (b2) aspects. c Ambulacral ossicle, base in oblique proximal aspect to show articulation (ada1) and muscle (padam) sites. Adambulacral ossicle in distal (d1) and abactinal (d2) aspects. Scale bar 5 mm