Rhynchonellata - Spiriferida - Ambocoeliidae

Full reference: R. E. Grant. 1976. Permian brachiopods from southern Thailand. Paleontological Society Memoir 9:1-269

Parent taxon: Ambocoeliinae according to A. Williams et al. 2006

Sister taxa: Ambocoelia, Attenuatella, Biconvexiella, Bisinocoelia, Crurithyris, Cyrtinoides, Dicoelospirifer, Echinocoelia, Eoplicoplasia, Guangxiispirifer, Metaplasia, Orbicoelia, Paracrurithyris, Plicoplasia, Spinoplasia, Swaicoelia

Subtaxa: Cruricella couria, Cruricella curvata, Cruricella minutalis, Cruricella subspeciosa

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Type: Cruricella couria

Ecology: stationary epifaunal suspension feeder