Bivalvia - Actinodontida

Full reference: T. M. Sanchez and N. E. Vaccari. 2003. Ucumariidae new family (Bivalvia, Anomalodesmata), and other bivalves from the Early Ordovician (Tremadoc) of northwestern Argentina. Ameghiniana 40:415-424

Parent taxon: Anodontopsoidea according to J. G. Carter et al. 2011

Sister taxa: Actinodontidae, Anodontopsidae, Baidiostracidae, Cycloconchidae, Redoniidae

Subtaxa: Cienagomya, Intihuarella

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Type: Intihuarella

Ecology: facultatively mobile infaunal suspension feeder