Fig. 17. Fossil skeletal plates of ophiacanthid brittle stars; lateral arm plates (LAPs) in external (a) and internal (b) views. 1-2. <i>Ophiotreta striata</i> (Kutscher &amp; Jagt, 2000) comb. nov. from the early Maastrichtian of Rügen, Germany. 1. GZG.INV.78588, proximal LAP. 2. GZG.INV.78589, distal LAP. 3-11. <i>Ophiotreta dendrophyllicola</i> sp. nov. from the middle Danian (Paleocene) of Fakse, Denmark. 3. MGUH 30236 (holotype), proximal LAP. 4. NHMM 2012 050 (paratype), median LAP. 5. NHMM 2012 051 (paratype), distal LAP. 6. NHMM 2012 052 (paratype), vertebra in distal view. 7. NHMM 2012 053 (paratype), vertebra in proximal view. 8. NHMM 2012 054 (paratype), vertebra in dorsal view. 9. NHMM 2012 055 (paratype), oral plate in adradial (a) and abradial (b) view. 10. NHMM 2012 056 (paratype), arm spine fragment. 11. NHMM 2012 057 (paratype), arm spine fragment. 12-15. <i>Ophiotreta hedone</i> sp. nov. from the middle Lutetian (Eocene) of Grignon, France. 12. GZG.INV.78590 (holotype), proximal LAP. 13. GZG.INV.78591 (paratype), median LAP. 14. GZG.INV.78592 (paratype), distal LAP. 15. GZG.INV.78593 (paratype), median LAP. One common scale bar per species.
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.
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