Bivalvia - Arcida - Parallelodontidae
Full reference: R. B. Stewart. 1930. Gabb's California Cretaceous and Tertiary type lamellibranchs. The Academy of Natural Sciences of Philadelphia Special Publication 3:1-314
Parent taxon: Grammatodon according to G. W. Kendrick and A. V. Vartak 2007
Sister taxa: Grammatodon (Grammatodon), Grammatodon (Indogrammatodon), Grammatodon (Lamellelodon), Grammatodon (Nordenskjoldia), Grammatodon concinnus, Grammatodon inornata, Grammatodon insons, Grammatodon malayensis, Grammatodon sulcatus, Grammatodon toyorensis, Grammatodon tripartitus
Subtaxa: none
Ecology: facultatively mobile low-level epifaunal suspension feeder
Distribution:
• Paleocene of the Russian Federation (1 collection)
• Cretaceous of China (1), India (3), Italy (1), Japan (15)
Total: 21 collections each including a single occurrence