Alaskothyris Blodgett, Baranov & Santucci, 2015 † (additional source)
Bornhardtina Schulz, 1914 † (basis of record)
Bornhardtininae Cloud, 1942 † (basis of record)
Chascothyris Holzapfel, 1895 † (basis of record)
Chinellirostra Baranov, Qiao & Blodgett, 2021 † (original description)
Chinellirostra rara Baranov, Qiao & Blodgett, 2021 † (original description)
Churkinella Baranov & Blodgett, 2018 † (taxonomy source)
Coronadothyris Baranov & Blodgett, 2018 † (taxonomy source)
Ectorensselandia Johnson, 1973 † (basis of record)
Elmaria Nalivkin, 1947 † (basis of record)
Erectocephalus Xian, in Xian & Jiang, 1978 † (basis of record)
Geranocephalinae Johnson, 1975 † (basis of record)
Geranocephaloides Baranov & Blodgett, 2013 † (additional source)
Geranocephalus Crickmay, 1954 † (basis of record)
Grandicephalus Xian, 1998 † (basis of record)
Guangshunia Xian, in Xian & Jiang, 1978 † (basis of record)
Hessenhausia Struve, 1982 † (basis of record)
Kaplex Ficner & Havlicek, 1975 † (additional source)
Kaplexinae Sun & Boucot, 1999 † (basis of record)
Leioseptathyridinae Sun & Boucot, 1999 † (basis of record)
Leioseptathyris Wu, in Wang et al., 1974 † (basis of record)
Newberria Hall, 1891 † (additional source)
Paracrothyris Wu, in Wang et al., 1974 † (basis of record)
Parastringocephalus Struve, 1965 † (additional source)
Pseudobornhardtina Sun & Hou, in Hou & Xian, 1964 † (basis of record)
Rensselandia Hall, 1867 † (basis of record)
Rensselandia cloudi Frost & Langenheim, 1966 † (additional source)
Rensselandioidea Yang, 1983 † (basis of record)
Stringocephalidae King, 1850 † (additional source)
Stringocephalus sinensis Baranov, Qiao & Blodgett, 2021 † (original description)
Stringodiscus Struve, 1982 † (basis of record)
Stringomimus Struve, 1965 † (basis of record)
Subrensselandia Cloud, 1942 † (basis of record)
Xiangzhounia Ni & Yang, in Yang et al., 1977 † (basis of record)
Yangirostra Baranov, Qiao & Blodgett, 2021 † (original description)
Yangirostra asiatica Baranov, Qiao & Blodgett, 2021 † (original description)