Asteriidae, Gray, 1840

Clade Asteriidae View in CoL

28. Ambulacral with strongly arched abactinal profile (convergent with the Brisingida ) ( Fig. 7B, D)

29. The muscle insertion lim represent more than 40% of the ossicle height and finishing under the actam (convergent with Labidiaster annulatus ) ( Fig. 7B, D)

67. Round pustule absent on the inferomarginals (presence only of keyhole pustules; see Supporting Information, Figs S8 View Figure 8 , S 9 View Figure 9 ).

79. Abactinals differentiate with at least two level of plates (convergent with Pedicellaster hypernotius ; Fig. 9 View Figure 9 ).

81. Abactinals, intercalary inter-arc ossicles present (convergent with Pedicellaster hypernotius ; Fig. 9E View Figure 9 ).

*110. Wreath organ present (characters number 60, 83 and 91 are also on wreath organs, see Appendix 1)