Taxonomic analysis of the genital plates and associated structures in Ophiuroidea (Echinodermata) Author Stöhr, Sabine 412800EB-AACE-4313-9810-61F89B740405 Swedish Museum of Natural History, Department of Zoology, Box 50007, 10405 Stockholm, Sweden. sabine.stohr@nrm.se text European Journal of Taxonomy 2024 2024-05-14 933 1 98 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2525/11335 journal article 10.5852/ejt.2024.933.2525 2118-9773 11198874 8F720F2B-BFBC-4CA1-BFF2-A2B8C7C8D3E1 Palaeocoma milleri (Phillips, 1829) ( Ophiopyrgidae ?), Middle Triassic to Early Jurassic: adGP clubshaped with long, rod-like proximal part, inflated distal part angling dorsalwards. Articular structures possibly with one or two condyles, and a patch or process proximal to inflated end. abGP cup-shaped, exposed distally, bearing large, flat, rectangular papillae forming an arm comb.