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)
• Dobrotivian of Morocco (2)
• Uhaku of Latvia (1), Lithuania (1)
• Letna of the Czech Republic (1)
• Ordovician of Algeria (1), Belgium (2), China (1), the Czech Republic (5), Estonia (5), Iran (1), Ireland (4), Latvia (4), Lithuania (6), Morocco (6), Norway (9), Portugal (1), the Russian Federation (1), Sweden (17), the United Kingdom (3), United States (24: Colorado, Missouri, Oklahoma, Tennessee, Virginia)
• Tremadoc of the Czech Republic (2)
Total: 98 collections including 102 occurrences