Fig 7. Ophiuroid skeletal characters identified as the potential synapomorphies.
<dl><dd>(A) Vertebrae of <i>Gorgonocephalus caputmedusae</i> in lateral view (SMNH-131549). (B) Vertebra of <i>Euryale aspera</i> in distal view (SMNH-131557). (C) Vertebra of <i>Ophionereis porrecta</i> in proximal view (SMNH-111047). (D) Lateral arm plate of <i>Ophiocopa spatula</i> (SMNH-122912). (E) Lateral arm plate of <i>Ophioleuce seminudum</i> (SMNH-118750). (F) Lateral arm plate of <i>Ophiodoris malignus</i> (MnhnL OPH018). (G) Lateral arm plate of <i>Ophiomyxa pentagona</i> (SMNH-90260). (H) Lateral arm plate of <i>Ophiactis fragilis</i> (SMNH-67805). (I) Spine articulations of <i>Gorgonocephalus caputmedusae</i> (SMNH-131549). (J) Spine articulation of <i>Ophiura ophiura</i> (MnhnL OPH019). (K) Spine articulation of <i>Ophiomusium lymani</i> (MnhnL OPH020). (L) Spine articulation of <i>Ophienigma spinilimbatum</i> (SMNH-131562). (M) Spine articulation of <i>Histampica duplicata</i> (SMNH-131574). (N) Spine articulation of <i>Ophiacantha bidentata</i> (SMNH-45856). (O) Spine articulation of <i>Ophiomyces delata</i> (SMNH-123451). (P) Spine articulation of <i>Ophiarachna incrassata</i> (MnhnL OPH021). Abbreviations: mo: muscle opening; no: nerve opening; dl: dorsal lobe; vl: ventral lobe; sf: sigmoidal fold. All lateral arm plates in external view. Scale bars equal 0.5 in (A)-(C), 0.25 mm in (D)-(H) and 0.1 mm in (I)-(P).</dd></dl>
Thuy B, Stöhr S (2016)
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Thuy B, Stöhr S (2016) A New Morphological Phylogeny of the Ophiuroidea (Echinodermata) Accords with Molecular Evidence and Renders Microfossils Accessible for Cladistics. <i>PLoS ONE</i> 11(5): e0156140. <a rel="nofollow" class="external free" href="https://doi.org/10.1371/journal.pone.0156140">https://doi.org/10.1371/journal.pone.0156140</a>