Figure 7. <i>Ophiogojira labadiei</i> gen. et sp. nov. from the late Early Pliensbachian (Davoei chronozone, Early Jurassic) of Sedan, Ardennes, France. (a) Holotype (MnhnL OPH159), arm fragment in ventral view. (b–e) Paratype (MnhnL OPH160), disc in dorsal (b) and ventral (c) views and with details of ventral arm base (d) and oral skeleton (e). (f) Paratype (MnhnL OPH161), oral plate in adradial view. (g) Paratype (MnhnL OPH162), proximal vertebra in distal view. (h–i) Paratype (MnhnL OPH163), proximalmost lateral arm plate in external (h) and internal (i) views. (j–k) Paratype (MnhnL OPH164), proximal lateral arm plate in external (j) and internal (k) views. (l–m) paratype (MnhnL OPH165), median lateral arm plate in external (l) and internal (m) views. (n–o) Paratype (MnhnL OPH166), distal lateral arm plate in external (n) and internal (o) views. adMA, adradial muscole attachment area; AOSs, adoral shield spine; AS, arm spine; CPP, central primary plate; di, distal; do, dorsal; GP, genital plate (abradial); GS, genital scale; OPa, oral papillae sensu lato; pr, proximal; R, vertebral articular ridge; RS, radial shield; RTo, ridge bordering the tentacle opening; SA, spine articulation; SP, spur; TO, tentacle opening; TS, tentacle scale; VAP, ventral arm plate; ZC, zygocondyle; ZS, zygosphene. Scale bars equal 1 mm in (a–c), and 0.5 mm in (d–o).
Thuy Ben, Numberger-Thuy Lea D. and Pineda-Enríquez Tania 2021. New fossils of Jurassic ophiurid brittle stars (Ophiuroidea; Ophiurida) provide evidence for early clade evolution in the deep sea. <i>Royal Society Open Science</i>. 8: 210643.
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