Stenolaemata - Cryptostomata - Acanthocladiidae
Parent taxon: Acanthocladiidae according to A. Ernst 2000
Sister taxa: Acanthocladiinae, Adlatipora, Baculopora, Diploporaria, Ichthyorachis, Matheropora, Polypora, Pteropora, Ptylopora, Samaria, Synocladia, Synocladiopsis, Neopolypora, Reteporidra, Mackinneyella, Parapolypora, Pseudopolypora, Wjatkella, Protoretepora, Paucipora, Polyporella, Polyporellina, Tibetiporella
Subtaxa: Penniretepora
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Australia (7 collections), Austria (2), Canada (2: British Columbia, Nunavut), China (7), Germany (3), Hong Kong (1), Indonesia (1), Iran (3), Japan (2), Mongolia (1), Oman (5), Pakistan (1), the Russian Federation (1), Svalbard and Jan Mayen (4), Thailand (4), Timor-Leste (1), the United Arab Emirates (1), United States (57: Alaska, Kansas, Nevada, Texas)
• Carboniferous of France (1), Ireland (2), Japan (4), the Russian Federation (1), Spain (6), Svalbard and Jan Mayen (2), the United Kingdom (9), United States (46: Alaska, Idaho, Idaho-Utah, Indiana, Kansas, Missouri, Nevada, New Mexico, Oklahoma, Pennsylvania, Texas, Utah)
• Devonian to Carboniferous of the United Kingdom (1)
• Devonian of Germany (10), Poland (1), the Russian Federation (1), Spain (1), the United Kingdom (3), United States (3: Michigan, Ohio), Western Sahara (1)
• Ordovician of the United Kingdom (3)
Total: 198 collections including 250 occurrences