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†suborder Phymosomatoida Mortensen 1904 (sea urchin)

Echinoidea - Calycina

PaleoDB taxon number: 32932

Alternative spelling: Phymosomina

Full reference: T. Mortensen. 1904. The Danish Expedition to Siam 18991900. III. Echinoidea (1). Kongelige Danske Videnskabelige Selskabs, Skrifter 7(1):1-124

Parent taxon: Calycina according to A. Kroh and A. B. Smith 2010

Sister taxa: Salenioida, Salenocidaris

Subtaxa: Boletechinus, Cottaldia, Cotteaudia, Diplopodiidae, Dixieus, Echinocyphus, Emiratiidae, Gauthiosoma, Heterodiadematidae, Leioechinus, Murravechinus, Phymosomatidae, Polydiadematidae, Trochotiara, Zeugopleurus

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Ecology: slow-moving low-level epifaunal omnivore