Fig. 1 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. 1. Ophiacanthid brittle star lineages and their fossil record in shallow (<200 m palaeodepth, thick grey lines) and deep (> 200 m palaeodepth, thick black lines) environments through time. Extant lineages are indicated by the thin median line extending to the Holocene.