Parent taxon: Isocrinida according to H. Hess and C. G. Messing 2011
See also Hess 2012
Sister taxa: Echicrinus, Isocrinina, Polycerus, Siliesiacrinus
Subtaxa: Eocomatulidae Pentacrinitidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Eocene of Germany (1 collection), Japan (2)
• Paleocene of Austria (1), Egypt (1), United States (1: New Jersey)
• Cretaceous to Paleogene of Poland (1)
• Cretaceous of Chile (1), France (1), Germany (2), New Zealand (3), Poland (2), Switzerland (1), the United Kingdom (1), United States (4: California)
• Temaikan of New Zealand (1)
• Jurassic of Argentina (1), Bosnia and Herzegovina (1), Canada (11: Alberta, British Columbia, Northwest Territories, Yukon), Chile (8), Egypt (1), France (6), Germany (15), Greenland (7), Hong Kong (1), India (3), Italy (7), Luxembourg (1), Mexico (1), Poland (1), Portugal (1), Slovenia (1), Svalbard and Jan Mayen (2), Switzerland (3), Turkey (1), Ukraine (1), the United Kingdom (19), United States (13: Alaska, Idaho, Montana, South Dakota, Utah, Wyoming)
• Triassic of Austria (2), Germany (2), Indonesia (1), Italy (9), Japan (1), New Zealand (1), Peru (1), Poland (1), the Russian Federation (3), Spain (3), Svalbard and Jan Mayen (2), United States (9: Alaska, California)
Total: 163 collections including 169 occurrences