†family Heterastrididae Frech 1890 (fire coral)
Hydrozoa - Milleporina - Heterastrididae
Parent taxon: Milleporina according to G. D. Stanley and B. Senowbari-Daryan 1999
Sister taxa: Axoporidae, Millepora, Palaeomillepora, Subaxopora
Subtaxa: Heterastridium
Ecology: stationary epifaunal carnivore-suspension feeder
Distribution:
• Triassic of Austria (2 collections), Canada (2: British Columbia), Cyprus (1), Indonesia (4), Iran (5), Mexico (3), New Caledonia (1), Oman (2), the Russian Federation (4), Tajikistan (1), the United Arab Emirates (1), United States (29: Alaska)
• Permian of China (2)
Total: 57 collections each including a single occurrence