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. 2012 Oct 10;7(10):e46913. doi: 10.1371/journal.pone.0046913

Figure 3. Additional diagnostic skeletal components of the echinoderm groups from the Aptian-earliest Albian (Early Cretaceous) of Blake Nose (ODP Site 1049).

Figure 3

A: Ophiacanthidae gen. et sp. nov., lateral arm plate (GZG.INV.78784). B: Ophiologimus sp. nov. (Ophiacanthidae), lateral arm plate (GZG.INV.78785). C: Ophiologimus sp. nov. (Ophiacanthidae), lateral arm plate (GZG.INV.78786). D: Ophiacantha sp. nov. (Ophiacanthidae), lateral arm plate (GZG.INV.78787). E: Balanocrinus sp. (Isocrinidae), columnal (GZG.INV.78788). F: Bathycrinus? sp. (Bathycrinidae), holdfast (GZG.INV.78789). G: Bathycrinus? sp. (Bathycrinidae), second primibrachial (GZG.INV.78790). H: echinothurioid ambulacral plate (GZG.INV.78791). I: echinothurioid? spine (GZG.INV.78792). J: diadematoid spine (GZG.INV.78793). K-L: Histocidaridae gen. et sp. indet., adoral spine fragments (GZG.INV.78794–78795). M: holasteroid ambulacral plate (GZG.INV.78796). N: holasteroid spine fragment (GZG.INV.78797). O: holasteroid spine fragment (GZG.INV.78798). P: Jumaraina sp. (Chiridotidae) body wall ossicle (upper side) (GZG.INV.78799). Scale bars equal 100 µm.