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Fig. 3 | Swiss Journal of Palaeontology

Fig. 3

From: Gymnodiadema and the Jurassic roots of the Arbacioida (stirodont echinoids)

Fig. 3

Gymnodiadema hessi sp. nov.; Bajocian, Enjil, Morocco. Camera lucida drawings of plating. Apical disc plating: a NHM EE13924 (paratype) b NHM EE13925 (paratype), c NHM EE13923 (holotype). Ambulacral plating: d NHM EE13924 (paratype) from subambital region to peristome, e NHM EE13925 (paratype) detail of two compound plates in phyllode region. f Adoral interambulacral plating, NHM EE13924 (paratype), with basicoronal plate shaded grey (basicoronal tubercle in white). Scale barsac 1 mm, e 2 mm, d, f 5 mm

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