File:Psammaster davidsoni (10.5194-fr-23-141-2020) Figure 2.png

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English: Figure 2. Psammaster davidsoni (de Loriol and Pellat 1874). Disc of the lectotype NHMUK PI E 53996, (a) photography and (b) interpretation drawing. Dashed lines indicate uncertain contour of the ossicles. Coloured areas indicate ossicle homology. Orange: the central; red: the madreporite; light green: carinals; dark green: primary radials; light blue: superomarginals; dark blue: primary interradials; pink: abactinals. Scale bars: 5 mm.
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Source Fau M., Villier L. Ewin T.A.M., Gale A.S. (2020). A revision of Ophidiaster davidsoni de Loriol and Pellat 1874 from the Tithonian of Boulogne (France) and its transfer from the Valvatacea to the new forcipulatacean genus Psammaster gen. nov. Fossil Record. 23(2): 141–149. https://doi.org/10.5194/fr-23-141-2020
Author Fau M., Villier L. Ewin T.A.M., Gale A.S. (2020)
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current19:20, 17 December 2022Thumbnail for version as of 19:20, 17 December 20222,067 × 934 (528 KB)Christian Ferrer (talk | contribs){{Information | description = {{en|1=Figure 2. ''Psammaster davidsoni'' (de Loriol and Pellat 1874). Disc of the lectotype NHMUK PI E 53996, (a) photography and (b) interpretation drawing. Dashed lines indicate uncertain contour of the ossicles. Coloured areas indicate ossicle homology. Orange: the central; red: the madreporite; light green: carinals; dark green: primary radials; light blue: superomarginals; dark blue: primary interradials; pink: abactinals. Scale bars: 5 mm}} | date = 2020...

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