True False Glochidia morphology (shape) Mytilus Mercenaria Neotrigonia Velesunio Hyridella Castalia Triplodon Etheria Chambardia Lamproscapha Mar, margaritifera M. monodonta Lamell, corrianus L. generosus Parreysia olivacea P. tavoyensis Coelatura Oxynala Scables Radiatula Unio Lasmigona Pyganodon Quadrula Amblema Lampsillis Truncilla Potamilus Ensidens Contra. contradens Contradens sp. Trapezoideus Gonided Potomida Lamprotula Pronodularia Pilsbryoconcha D S-shaped hooked Lasidia 2854E O D DE DOU D DI 1 0000 0 Unhooked Hooked w/ spines Axe-head shaped Asymmetrical Pseudodon cumingil 00000 P.mouhtil Pinoscularis DOUBLE 177506 P. vondembushianus 200 P. cambodjensis Hyriidae Lasidium-bearing Mussels Margaritiferidae Parreysiinae Unioninae Ambleminae Rectidentinae Gonideinae Given the above phylogeny, is the following statement true or false? The common ancestor of Rectidentinae mussels most likely had Unhooked glochidia.

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