Classification of Frýda 1999

G. †Bellerophon de Montfort 1808
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†Bellerophon scaber Perner 1903
G. †Alaskacirrus Frýda and Blodgett 1998
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†Alaskacirrus bandeli Frýda and Blodgett 1998
G. †Alaskiella Frýda and Blodgett 1998
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†Alaskiella medfraensis Frýda and Blodgett 1998
G. †Barrandecirrus Frýda 1997
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G. †Murchisonia d'Archiac and de Verneuil 1841
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†Murchisonia pragensis Frýda and Manda 1997
G. †Pernericirrus Frýda 1997
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G. †Katoptychia Perner 1907
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†Katoptychia holynensis Frýda and Bandel 1997
Subg. †Palaeozygopleura (Bohemozyga) Frýda and Bandel 1997
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Or. †Perunelomorpha Frýda and Bandel 1997
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Superfm. †Peruneloidea Frýda and Manda 1997
G. †Vltaviella Frýda and Manda 1997
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†Vltaviella reticulata Frýda and Manda 1997
G. †Perunela Frýda and Bandel 1997
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†Perunela bohemica Frýda and Bandel 1997
G. †Zenospira Frýda and Bandel 1997
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†Zenospira pragensis Frýda and Bandel 1997
Subg. †Murchisonia (Murchisonia) d'Archiac and de Verneuil 1841
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†Murchisonia (Murchisonia) holynensis Frýda and Manda 1997