Classification of the superfamily Stringocephaloidea
Superfm. †Stringocephaloidea King 1850
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Fm. †Centronellidae Waagen 1882
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Subfm. †Amphigeniinae Cloud 1942
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Subfm. †Centronellinae Waagen 1882
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G. †Centronella Billings 1859
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†Centronella glansfagea Hall 1857
†Centronella impressa Hall 1867
†Centronella navicella Hall 1867
†Centronella tumida Billings 1861
G. †Oriskania
G. †Proboscidina
Subfm. †Rensselaeriinae Raymond 1923
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G. †Etymothyris
G. †Nanothyris
G. †Rensselaeria
G. †Rensselaerina
G. †Guangshunia
Fm. †Meganterididae Schuchert and LeVene 1929
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Subfm. †Adreninae Boucot 1994
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G. †Adrenia
G. †Barbarothyris
G. †Cydimia
G. †Lingshanella
G. †Micidus
G. †Sturtella
Subfm. †Mutationellinae Cloud 1942
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G. †Cloudella
G. †Mendathyris
G. †Mutationella
G. †Neopaulinella Ă–zdikmen 2008
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†Neopaulinella guerangeri Verneuil 1851
Invalid names: Paulinella [replaced]
G. †Podolella
G. †Prorensselaeria
G. †Scaphiocoelia
G. †Xana
Fm. †Rhipidiothyrididae Cloud 1942
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Fm. †Stringocephalidae King 1850
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Subfm. †Geranocephalinae Johnson 1975
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G. †Geranocephalus
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Invalid names: Acrothyris [synonym], Catacephalus [synonym], Conomimus [synonym]
G. †Paracrothyris
G. †Stringomimus
G. †Xiangzhounia
Subfm. †Rensselandiinae Cloud 1942
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G. †Chascothyris
G. †Ectorensselandia
G. †Elmaria
G. †Newberria
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Invalid names: Denckmannella Schuchert and LeVene 1929 [synonym], Rensselandia [synonym]
G. †Rensselandioidea
G. †Subrensselandia
Subfm. †Stringocephalinae King 1850
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G. †Stringocephalus
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†Stringocephalus burtini Defrance 1825
†Stringocephalus nevadensis Frost and Langenheim, Jr. 1966
G. †Stringodiscus