Polycystinea - Spumellaria - Relindellidae
Parent taxon: Spongodiscacea according to P. De Wever et al. 2001
Sister taxon: Myelastridae
Subtaxa: Copicyntroides Pentaspongodiscus Tetraspongodiscus
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Distribution:
• Triassic of Albania (1 collection), Armenia (1), Austria (1), Canada (26: British Columbia), China (4), Cyprus (1), Hungary (2), Italy (1), Japan (3), New Zealand (5), Slovenia (12), Thailand (3), Türkiye (49)
• Permian of China (15), Japan (31)
Total: 155 collections including 204 occurrences
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