†Cardirhynchus Schluter 1862 (crab)
Parent taxon: Grapsoidea according to C. E. Schweitzer et al. 2010
Sister taxa: Aulacopodia, Brome, Daragrapsus, Daranyia, Eurycarpus, Gecarcinidae, Glyptodynomene, Glyptograpsidae, Grapsidae, Liocaris, Lupeites, Paradosilissopsa, Plagusiidae, Psammograpsus, Pseudodaranyia, Pseudomicippella, Roemerus, Sesarmidae, Tiche, Vanua, Varunidae, Wulaicarcinus, Xenograpsidae
Subtaxa: Cardirhynchus spinosus
Type: Cardirhynchus spinosus
Ecology: epifaunal carnivore