Fig. 32. Fossil skeletal plates of ophiacanthid brittle stars; lateral arm plates (LAPs) in external (a) and internal (b) views. 1. <i>Ophiomitrella</i>? sp. 2 from the Bathonian (Middle Jurassic) of Jumara, India; GZG. INV.78740, median to distal LAP. 2. <i>Ophiomitrella</i> sp. nov. from the late Maastrichtian (Late Cretaceous) of Maastricht, the Netherlands; NHMM JJ 5104, proximal LAP. 3-6. <i>Ophiomalleus beneficarum</i> gen. et sp. nov. from the Callovian of Bauer-Wehrland (3), Althüttendorf (4-5) and Hohensaaten (6), Germany. 3. GZG.INV.78741 (holotype), proximal to median LAP. 4. GZG.INV.78742 (paratype), proximal LAP. 5. GZG.INV.78743 (paratype), distal LAP. 6. GZG.INV.78744 (paratype), arm spine. 7-9. <i>Ophiomalleus stevenwilsoni</i> gen. et sp. nov. from the latest Hauterivian (Early Cretaceous) of Sarstedt, Germany. 7. GZG.INV.78748 (holotype), proximal LAP. 8. GZG.INV.78749 (paratype), median LAP. 9. GZG. INV.78750 (paratype), distal LAP. One common scale bar per species except for 6.
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). <i>European Journal of Taxonomy</i> 48: 1-242.
CC BY 3.0
<a rel="nofollow" class="external free" href="https://dx.doi.org/10.5852/ejt.2013.48">https://dx.doi.org/10.5852/ejt.2013.48</a>