Strophomenata - Billingsellida - Billingsellidae
Full reference: C. Schuchert. 1893. A classification of the Brachiopoda. American Geologist 11:141-167
Parent taxon: Billingselloidea according to A. Williams et al. 2000
See also Rubel 1961 and Zhan et al. 2010
Sister taxon: Chaniellidae
Subtaxa: Billingsella Cymbithyris Eoorthinae Eosotrematorthis Kozhuchinella Saccogonum Xenorthis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Dawan of China (1 collection)
• Arenig of China (6)
• Ordovician of Canada (1: Newfoundland)
• Tremadoc of China (2)
• Cambrian of Antarctica (1), Australia (6), Bhutan (1), China (24), Iran (5), Kazakhstan (1), Morocco (2), the Russian Federation (12), Spain (1), United States (40: California, Idaho, Montana, Nevada, Oklahoma, South Dakota, Texas, Utah, Wisconsin, Wyoming)
Total: 103 collections including 117 occurrences