Gastropoda - Pleurotomarioidea - Phymatopleuridae

Full reference: R. L. Batten. 1956. Some new pleurotomarian gastropods from the Permian of west Texas. Journal of the Washington Academy of Sciences 46(1):42-44

Parent taxon: Phymatopleuridae according to J. B. Knight et al. 1960

Sister taxa: Austroscalata, Borestus, Callitomaria, Catazona, Euryalox, Eymarella, Lamellospira, Paragoniozona, Phymatopleura

Subtaxa: Discotomaria basisulcata, Discotomaria costata, Discotomaria dubia, Discotomaria nodosa, Discotomaria xingwenensis

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Type: Discotomaria basisulcata

Ecology: epifaunal grazer