†subfamily Gemmarculinae Elliott 1947 (lamp shell)
Rhynchonellata - Terebratulida - Terebrataliidae
Parent taxon: Terebrataliidae according to A. Williams et al. 2006
Sister taxa: Terebrataliinae, Trigonoseminae
Subtaxa: Arenaciarcula Choristothyris Gemmarcula Helvetella Ismenia Oblongarcula Ruegenella
Type: Gemmarcula
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Cretaceous of Australia (1 collection), Austria (3), Belgium (1), France (3), Germany (3), Greenland (1), Italy (1), Kazakhstan (1), Poland (2), Romania (1), the Russian Federation (1), Ukraine (1), the United Kingdom (15), United States (6: Arizona, New Jersey)
• Jurassic of France (1), Germany (1), Greece (1), Ukraine (1)
Total: 44 collections including 58 occurrences