File:Ophiacanthidae (10.5852-ejt.2013.48) Figure 24.jpg

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English: Fig. 24. Fossil lateral arm plates in external (a) and internal (b) views and articulated arm fragment of ophiacanthid brittle stars. 1-2. Alternacantha arges sp. nov. from the late Oxfordian (Late Jurassic) of Raedersdorf, France; M 610 in dorsal (1a) and ventral (1b) views and with details of dorsal (2a) and ventral (2b) arm plating. 3-6. Alternacantha dilionessa sp. nov. from the early Kimmeridgian of the Pointe du Chay, France. 3. GZG.INV.78662 (holotype), proximal LAP. 4. GZG.INV.78663 (paratype), proximal LAP. 5. GZG.INV.78664 (paratype), median LAP. 6. GZG.INV.78665 (paratype), distal LAP. One common scale bar for 1, for 2 and for 3-6, respectively.
Date
Source https://dx.doi.org/10.5852/ejt.2013.48
Author Thuy, T. 2013. Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea). European Journal of Taxonomy 48: 1-242.
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current17:38, 5 June 2020Thumbnail for version as of 17:38, 5 June 20201,890 × 2,557 (2.29 MB)Christian Ferrer{{Information | description = {{en|1=Fig. 24. Fossil lateral arm plates in external (a) and internal (b) views and articulated arm fragment of ophiacanthid brittle stars. 1-2. ''Alternacantha arges'' sp. nov. from the late Oxfordian (Late Jurassic) of Raedersdorf, France; M 610 in dorsal (1a) and ventral (1b) views and with details of dorsal (2a) and ventral (2b) arm plating. 3-6. ''Alternacantha dilionessa'' sp. nov. from the early Kimmeridgian of the Pointe du Chay, France. 3. GZG.INV.7866...

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