Rhynchonellata - Spiriferida - Acrospiriferidae
Parent taxon: Delthyridoidea according to A. Williams et al. 2006
Sister taxa: Cyrtinopsidae, Delthyrididae, Filispiriferidae, Hysterolitidae, Mucrospiriferidae
Subtaxa: Acrospiriferinae Costispiriferinae Elymospiriferinae
Type: Acrospirifer
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Algeria (1 collection), Australia (3), Brazil (2), Canada (6: Ontario, Quebec), China (42), Colombia (28), Czechia (2), France (1), Germany (10), Guinea-Bissau (1), Libya (1), New Zealand (4), Peru (3), the Russian Federation (4), South Africa (2), Spain (5), the United Kingdom (2), United States (18: Nevada, New Hampshire, New York, West Virginia), Venezuela (3), Vietnam (6)
Total: 144 collections including 187 occurrences