Rhombifera - Echinosphaeritidae
Parent taxon: Caryocystitidacea according to M. Mergl and R. J. Prokop 2006
See also Beaver et al. 1967 and Botting 2003
Sister taxa: none
Subtaxa: Arachnocystites Deutocystites Echinosphaerites
Type: Echinosphaerites
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Permian of Italy (1 collection)
• Uhaku of Latvia (1), Lithuania (1), the Russian Federation (1)
• Dobrotivian of Morocco (2)
• Letna of Czechia (1)
• Ordovician of Algeria (1), Belgium (2), China (1), Czechia (6), Estonia (3), Iran (1), Ireland (4), Latvia (4), Lithuania (6), Morocco (6), Norway (9), Portugal (1), the Russian Federation (3), Sweden (17), the United Kingdom (3), United States (24: Colorado, Missouri, Oklahoma, Tennessee, Virginia)
Total: 98 collections including 103 occurrences