Ostracoda - Podocopida - Bairdiidae
Parent taxon: Bairdiidae according to M. B. Forel 2022
See also Hazel and Holden 1971, Kollmann 1963, Kozur 1985, Marianos and Valentine 1958 and Sohn 1987
Sister taxa: Abrobairdia, Acratina, Anchistrocheles, Anisobairdia, Araxobairdia, Bairdia, Bairdiacypris, Bairdianella, Bairdiolites, Bairdoppilata, Bispinacratia, Bohlenatia, Carinobairdiinae, Celechovites, Ceratobairdia, Ceratobairdiinae, Edithobairdia, Elpinella, Fabalicypris, Famenella, Heterobairdia, Isobythocypris, Kempfina, Krausella, Liuzhinia, Neonesidea, Nodobairdia, Orthobairdia, Parabairdiacypris, Paramacrocypris, Paranesidea, Parurobairdia, Petasobairdia, Praezabythocypris, Pseudocyproides, Pustulobairdia, Sinabairdia, Spinobairdia, Triebelininae, Truncobairdia, Urobairdia, Vanganardia, Xixionopsis, Parabairdianella
Subtaxa: Alatobairdia Borgerscottia Cornutobairdia Havanardia Hiatobairdia Lobobairdia Mirabairdia Processobairdiini Ptychobairdia
Type: Bairdia
Ecology: epifaunal detritivore-grazer
Distribution:
• Eocene of Tonga (1 collection)
• Jurassic of Austria (2), Germany (12), Hungary (5), Portugal (7), Türkiye (5)
• Triassic of Austria (9), Canada (10: Yukon), China (4), Iran (2), Italy (5), Romania (4), Türkiye (2), United States (4: Alaska)
• Permian of China (76), Hungary (2), Thailand (5)
• Devonian of Belgium (1)
Total: 156 collections including 239 occurrences