Fig. 36 in 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)

Fig. 36. Lateral arm plates (LAPs) of fossil and Recent ophiacanthid brittle stars in external (a) and internal (b) views. 1-3. Reitneracantha dissidens gen. et sp. nov. from the late Sinemurian to early Pliensbachian (Early Jurassic) of the Glasenbach Gorge, Austria. 1. NHMW 2012/0137/0029 (holotype), proximal LAP. 2. NHMW 2012/0137/0030 (paratype), median LAP. 3. NHMW 2012/0137/0031 (paratype), distal LAP. 4-5. Ophiohamus nanus O'Hara & Stöhr, 2006, Recent. 4. Proximal to median LAP. 5. Proximal to median LAP. 6-8. Sabinacantha archetypa gen. et sp. nov. from the late Oxfordian (Late Jurassic) of the Plettenberg, Germany. 6. GZG.INV.78771 (holotype), proximal LAP. 7. GZG.INV.78772 (paratype), median LAP. 8. GZG.INV.78773 (paratype), distal LAP. One common scale bar per species.