Rhynchonellata - Terebratulida - Nucleatidae
Parent taxon: Discolioidea according to L. Bujtor and R. Albrecht 2022
See also Williams et al. 2006
Sister taxa: Carinatothyris, Dyscoliidae, Papodina, Pygopidae
Subtaxa: Buckmanithyris Linguithyris Nucleata Phymatothyris
Type: Nucleata
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Cretaceous of the Czech Republic (18 collections), Greenland (2), Hungary (15), Italy (1), Poland (12), Slovakia (1), Spain (1)
• Jurassic to Cretaceous of Hungary (1), Poland (8)
• Jurassic of Algeria (5), Austria (14), Bulgaria (4), Ethiopia (2), France (9), Greece (10), Hungary (150), Italy (7), New Caledonia (3), New Zealand (1), Poland (22), Serbia and Montenegro (1), Slovakia (2), Spain (7), Switzerland (3), Tunisia (4), Turkey (1), Ukraine (2), the United Kingdom (1)
Total: 307 collections including 377 occurrences