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

Fig. 5

From: The pitfalls of extrapolating modern depth ranges to fossil assemblages: new insights from Middle Jurassic brittle stars (Echinodermata: Ophiuroidea) from Switzerland

Fig. 5

Alternacantha occulta gen. et sp. nov., M9761 (holotype) from the Varians beds, middle Bathonian of Sichtern near Liestal, Switzerland. a General aspect of specimen from Hess and Holenweg (1985); b detail of oral skeleton; c detail of jaw; d drawing of c; e median arm segments in dorso-lateral view; f distal arm segments in dorsal view; g median arm segments in ventral view. AOS adoral shield; DP dental plate; LAP lateral arm plate; OS oral shield; OP oral plate; OPa oral papilla; S arm spine; T tooth; VAP ventral arm plate

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