Stromatoporoidea - Labechiida - Aulaceratidae
Synonym: Aulaceridae Kuhn 1927
Parent taxon: Labechiida according to C. W. Stearn et al. 1999
See also Bolton 1988, Copper 2001 and Webby 2015
Sister taxa: Labechiidae, Lophiostromatidae, Platiferostromatidae, Rosenellidae, Stromatoceriidae, Stylostromatidae
Subtaxa: Alleynodictyon Aulacera Cryptophragmus Ludictyon Pararosenella Quasiaulacera Sinodictyon Thamnobeatricea
Ecology: stationary epifaunal suspension feeder-photosymbiotic
Distribution:
• Silurian of the Russian Federation (1 collection)
• Ordovician to Silurian of Canada (10: Québec)
• Ordovician of Australia (7), Canada (40: Manitoba, Northwest Territories, Ontario, Quebec, Québec), China (5), Mongolia (3), the Russian Federation (1), United States (41: Georgia, Kentucky, Michigan, Ohio, Virginia)
Total: 108 collections including 126 occurrences