Rhynchonellata - Rhynchonellida - Hypothyridinidae
Parent taxon: Uncinuloidea according to A. Williams et al. 2002
Sister taxa: Eatoniidae, Glossinotoechiidae, Hadrorhynchiidae, Hebetoechiidae, Innaechiidae, Obturamentellidae, Uncinulidae
Subtaxa: Glosshypothyridina Hypothyridina Lorangerella Pseudouncinulus Uchtella Xiaobangdaia
Type: Hypothyridina
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Afghanistan (2 collections), Austria (1), Belgium (1), Canada (3: Alberta, Saskatchewan, Mackenzie, Northwest Territories, Ontario), China (4), the Czech Republic (1), Germany (2), the Russian Federation (11), United States (24: Alaska, Iowa, Missouri, Nevada, New Mexico, New York)
• Silurian of United States (1: California)
Total: 50 collections including 54 occurrences