Rostroconchia - Conocardiida - Pseudobigaleaidae

Full reference: M. W. Caldwell and B. D. E. Chatterton. 1995. Phylogenetic analysis of some Silurian rostroconchs (Mollusca) from northwestern Canada. Canadian Journal of Earth Sciences 32:806-827

Parent taxon: Pseudobigaleainae according to N. S. Rogalla and M. R. W. Amler 2006

Sister taxa: Hadropipetta, Kandosoconcha, Nehedia, Pseudobigalea

Subtaxa: Redstonia buskasi, Redstonia cooperi, Redstonia knaeckei, Redstonia tercierae, Redstonia visbyensis

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Type: Bigalea tercierae

Ecology: stationary semi-infaunal suspension feeder