Conodonta - Ozarkodinida - Gondolellidae
Synonym: Xaniognathidae Sweet 1981
Parent taxon: Ozarkodinida according to M. L. Golding and M. J. Orchard 2018
See also Clark et al. 1981, Igo 2009, Maekawa and Igo 2014 and Plasencia et al. 2007
Sister taxa: Anchignathodontidae, Elictognathidae, Ellisoniidae, Gamachignathus, Gondolellidea, Gondolelloidea, Idiognathodontidae, Kockelellidae, Microzarkodina, Ozarkodinina, Palmatolepididae, Periodon, Plectodina, Pterospathodontidae, Spathognathodontidae, Spathognathodontodae, Vjalovognathidae
Subtaxa: Acuminatella Carnepigondolella Chirodella Clarkina Cornudininae Cratognathodus Epigondolella Epigondolellinae Gondolella Hayashiella Icriospathodus Jinogondolella Kraussodontus Mesogondolella Metapolygnathus Mullerinae Neoclarkina Neogondolellinae Novispathodinae Paragondolellinae Paullella Platyvillosus Primatella Scythogondolellinae Sephardiellinae Sweetocristatus Sweetospathodus Xaniognathus
Ecology: nektonic carnivore
Distribution:
• Kaihikuan of United States (9: Nevada collections)
• Triassic of Austria (54), Bosnia and Herzegovina (3), Canada (63: British Columbia), Chile (1), China (55), Croatia (2), Germany (30), Greece (48), Greenland (1), Hungary (52), India (20), Indonesia (1), Israel (8), Italy (54), Japan (61), Malaysia (5), Mexico (1), Nepal (18), New Zealand (14), Oman (57), Papua New Guinea (1), Peru (3), the Philippines (1), Poland (12), Romania (15), the Russian Federation (158), Serbia (20), Slovakia (48), Slovenia (58), Spain (3), Svalbard and Jan Mayen (36), Thailand (2), Timor-Leste (4), Türkiye (72), United States (60: Alaska, California, Idaho, Nevada, Oregon, Utah, Washington), Vietnam (33), Yemen (10)
• Permian to Triassic of China (3), India (2)
• Permian of Azerbaijan (2), China (54), Greece (4), Greenland (1), Iran (3), Italy (1), Japan (1), Mexico (1), the Russian Federation (3), Thailand (3), United States (8: Alaska, Texas)
• Carboniferous of Greece (3), Mexico (1), the Russian Federation (2), United States (3: Illinois, Missouri)
• Devonian to Triassic of Greece (1)
Total: 1189 collections including 3047 occurrences