Parent taxon: Glyptocrinina according to G. D. Webster et al. 2025
Sister taxa: Eucalyptocrinitacea, Glyptocrinacea, Glyptocrinoidea, Melocrinitacea, Patelliocrinoidea, Platycrinitacea, Stipatocrinacea
Subtaxa: none
Type: Platycrinites
Ecology: stationary upper-level epifaunal suspension feeder
Distribution:
• Permian of Australia (23 collections), Canada (2: British Columbia, Nunavut), China (1), Indonesia (16), Oman (5), Serbia (1), Slovenia (1), Timor-Leste (1), United States (2: Alaska, Nevada)
• Carboniferous of Antarctica (2), Australia (3), Canada (2: Alberta), China (3), Iran (2), Ireland (2), Poland (1), the United Kingdom (7), United States (192: Alabama, Alaska, Georgia, Idaho, Illinois, Indiana, Iowa, Kentucky, Montana, Nevada, New Mexico, Ohio, Oklahoma, Tennessee, Utah, Virginia)
• Devonian of China (5), Czechia (2), Germany (4), Mongolia (1), United States (1: Missouri)
• Silurian of United States (1: Indiana)
Total: 280 collections including 466 occurrences