†subfamily Hemitoechiinae Savage 1996 (lamp shell)

Rhynchonellata - Rhynchonellida - Trigonirhynchiidae

Parent taxon: Trigonirhynchiidae according to A. Williams et al. 2002

Sister taxa: Ancillotoechia, Ptychomalotoechia, Ripidiorhynchinae, Rostricellulinae, Trigonirhynchiinae, Virginiatinae

Subtaxa: Bathyrhyncha Browneella Dalerhynchus Dushanirhynchia Hemitoechia Lenatoechia Libyaerhynchus Losvia Luterella Nymphorhynchia Pampoecilorhynchus Paurogastroderhynchus Ptychomaletoechia Sartenaerus Tabarhynchus Yanetechia

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Type: Hemitoechia

Ecology: stationary epifaunal suspension feeder

Distribution:

• Carboniferous of China (2 collections), Libya (1)

• Devonian to Carboniferous of China (1), the United Kingdom (1)

• Devonian of Afghanistan (6), Australia (2), Canada (10: Alberta, Yukon, Yukon Territory), China (6), the Czech Republic (1), Germany (14), Iran (13), Italy (2), Kyrgyzstan (1), Libya (2), Poland (6), the Russian Federation (20), Tajikistan (2), Ukraine (1), the United Kingdom (6), United States (4: Ohio)

• Silurian of Belarus (1), Canada (1: Northwest Territories), Estonia (5), Mongolia (2), Poland (1), the Russian Federation (6), Ukraine (2)

• Ordovician to Silurian of the Russian Federation (1)

• Ordovician of the Russian Federation (2)

Total: 122 collections including 161 occurrences

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