Description: English: An early stage in the development of Antedon, showing the foot-plate or “dorso-central” fp at the end of the stem col. Some of the thecal plates, infrabasals I B, basals B, and orals O are forming around the body-cavities r.pc and l.pc; p is the water-pore. (After Seeliger.). Date: 1911. Source: Encyclopædia Britannica, 1911. Author: Encyclopædia Britannica, Volume 8, Slice 10., available freely at Project Gutenberg.
Description: English: Antedon bifida, the common feather star. The Garvellachs, western Scotland, UK. Date: 9 October 2013. Source: Own work. Author: Bernard Picton.
Description: Français : cette comatule de couleur jaune est aussi très fragile et le fait de vouloir la "détacher" de son support, peut la briser en plusieurs morceaux. Il faut toucher avec les yeux. Date: 6 August 2010. Source: Own work. Author: Parent Géry.