Rhynchonellata - Orthida - Orthidae

PaleoDB taxon number: 26899

Parent taxon: Orthidae according to A. Williams et al. 2000

Sister taxa: Almadenorthis, Bastamorthis, Boreadorthis, Diochthofera, Duolobella, Gutiorthis, Lenorthis, Leoniorthis, Orthambonites, Orthinae, Orthostrophella, Orthostrophia, Palaeowingella, Paralenorthis, Rogorthis, Sinorthis, Sulcatorthis, Sulevorthis, Suriorthis, Taphrorthis, Trondorthis

Subtaxa: Orthis (Finkelnburgia), Orthis acuminata, Orthis australis, Orthis berthoisi, Orthis biforata, Orthis bilobata, Orthis callactis, Orthis christianae, Orthis christianiae, Orthis decipiens, Orthis expansa, Orthis intercostata, Orthis laurentina, Orthis piger, Orthis praeumbona, Orthis reversa, Orthis spinigera, Orthis testudinaria

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Type: Orthis callactis

Ecology: stationary epifaunal suspension feeder