Fig. 14. Plesiastropecten hallovensis Peyer, 1944. A in The fossil record of the family Benthopectinidae (Echinodermata, Asteroidea), a reappraisal

Fig. 14. Plesiastropecten hallovensis Peyer, 1944. A. Holotype (MZA L13a), the original of Peyer (1944: pl. 7) and Blake (1984: fig. 1a–h). B. Enlargement of distal arm. C–F. Line drawings of MZA L 13b/32a–e. C. Ossicle distribution of entire individual; note large, stellate abactinal ossicles which each carry a large boss for attachment of a single spine. D. Ambulacral ossicle, in abactinal view, and two abactinal ossicles. E. Adambulacral ossicle with spines attached. F. Two marginal ossicles, with serrated spines attached. Provenance: Lower Jurassic (Hettangian, liasicus ammonite Zone) of Hallau, Canton Schaffhausen, Switzerland. Scale bars: A = 10 mm; B–C = 5 mm; D–G = 2 mm.