Bivalvia - Arcida - Glycymerididae
Parent taxon: Glycymerita according to G. W. Kendrick and A. V. Vartak 2007
Sister taxa: Glycymeris (Glycymerita) anae, Glycymeris (Glycymerita) apletos, Glycymeris (Glycymerita) ibariformis, Glycymeris (Glycymerita) magna, Glycymeris (Glycymerita) reefensis, Glycymeris (Glycymerita) sagittata, Glycymeris (Glycymerita) tecolotensis, Glycymerita aleuta, Glycymerita banosensis, Glycymerita concava, Glycymerita gigantica, Glycymerita major, Glycymerita robusta, Glycymerita sagittata, Glycymerita veatchii
Subtaxa: Glycymerita (Glycymerita) cardioides
Ecology: facultatively mobile semi-infaunal suspension feeder
Distribution:
• Eocene of New Zealand (1 collection)
• Cretaceous of India (2), Japan (1)
Total: 4 collections each including a single occurrence