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Swiss Journal of Palaeontology
Fig. 5 | Swiss Journal of Palaeontology

Fig. 5

From: A relict Triassic brittle star (Echinodermata, Ophiuroidea) in Lower Jurassic strata of Asturias, north-west Spain

Fig. 5

a–d Arenorbis santameraensis sp. nov. from the upper Sinemurian of the Punta La Llastra W section, Villaviciosa (Asturias, north-west Spain); paratype (MUJA-3785); a general view of the specimen exposing ventral side; b detail of proximal arm segments; c dissociated lateral arm plate in external view; d dissociated lateral arm plate in internal view; e–g Arenorbis squamosus (Picard, 1858) from the Middle Triassic of Schillingstadt, Baden-Württemberg, Germany; dissociated lateral arm plate (MnhnL OPH198) in external (e) and internal (f) views and with detail of spine articulations (g). AS arm spines di distal DL dorsal lobe do dorsal GS genital slit LAP lateral arm plate MO muscle opening NO nerve opening TS tentacle scales VL ventral lobe

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