†subfamily Dielasmatinae Schuchert 1913 (lamp shell)

Rhynchonellata - Terebratulida - Dielasmatidae

Parent taxon: Dielasmatidae according to H. R. Feldman 2017

See also Feldman 2002 and Williams et al. 2006

Sister taxa: Campbellelasma, Centronelloideinae, Grigorjevaelasma, Gruntelasma, Lengwuella, Nucleatulinae, Ustritskia

Subtaxa: Adygella Amygdalocosta Aspidothyris Bittnerithyris Coenothyris Cruratula Dareithyris Dielasma Dielasmina Dongbaella Ectoposia Elasmata Fletcherithyris Pirithyris Plectelasma Praerhaetina Sulcatinella Tibetothyris Tosuhuthyris Tunethyris Whitspakia Yochelsonia

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Type: Dielasma

Ecology: stationary low-level epifaunal suspension feeder

Distribution:

• Triassic of Austria (5 collections), Bulgaria (1), China (40), Colombia (1), East Timor (1), Germany (15), Greenland (4), Hungary (60), India (1), Iran (2), Israel (5), Italy (4), Nepal (1), New Caledonia (1), New Zealand (14), Papua New Guinea (3), Poland (5), Romania (3), the Russian Federation (23), Serbia and Montenegro (8), Slovakia (6), Tajikistan (1), Tunisia (4), United States (5: Alaska, California, Montana), Vietnam (2), Yemen (2)

• Permian to Triassic of India (2)

• Permian of Afghanistan (4), Armenia (1), Australia (76), Austria (1), Bolivia (2), Canada (9: British Columbia, Nunavut, Yukon), Chile (2), China (76), Croatia (1), Germany (2), Greece (5), Greenland (7), India (6), Indonesia (1), Iran (10), Japan (7), Lithuania (10), Malaysia (2), Mexico (9), New Zealand (17), Oman (11), Pakistan (115), Peru (7), Poland (4), the Russian Federation (62), Slovenia (2), Thailand (13), Turkey (5), the United Kingdom (43), United States (300: Alaska, Idaho, Kansas, Nevada, New Mexico, Oklahoma, Oregon, Texas, Utah, Wyoming)

• Virgilian of United States (5: Kansas, Texas)

• Desmoinesian of United States (8: Kansas, Missouri, New Mexico, Pennsylvania, Utah)

• Pennsylvanian of United States (3: Alaska)

• Chesterian of Canada (1: Alberta), United States (16: Arkansas, Indiana, Oklahoma, Virginia)

• Osagean of Canada (1: Alberta), United States (5: Indiana, New Mexico)

• Carboniferous of Australia (17), Canada (4: Alberta, Yukon), China (3), India (1), Ireland (3), the United Kingdom (33), United States (96: Alaska, Arizona, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Montana, Nevada, New Mexico, New mexico, Oklahoma, Tennessee, Texas, Utah)

• Mississippian of United States (8: Alaska, Arizona, Utah)

• Devonian of China (3), Germany (1)

Total: 1237 collections including 1629 occurrences

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