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Genus: Gracilitheca Syssoiev , 1968 † (DB: 4 SP)
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Gracilitheca bayonet
(G.F. Matthew, 1899 †) (FOSSIL)
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Gracilitheca mirabilis
Valent & al., 2012 † (FOSSIL)
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Gracilitheca ternata
A.V. Sysoev, 1968 † (FOSSIL)
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Gracilitheca triangularis
Valent & al., 2012 † (FOSSIL)
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Genus: Lophotheca Qian , 1978 † (DB: 2 SP)
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Lophotheca aggregata
Z.X. Qian, 1989 † (FOSSIL)
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Lophotheca costellata
Z.X. Qian, 1978 † (FOSSIL)
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Genus: Nephrotheca Marek , 1966 † (DB: 1 SP)
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Nephrotheca betula
Valent & al., 2012 † (FOSSIL)
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Genus: Sokolovitheca Syssoiev , 1972 † (DB: 2 SP)
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Sokolovitheca insperata
A.V. Sysoev, 1972 † (FOSSIL)
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Sokolovitheca sokolovi
A.V. Sysoev, 1972 † (FOSSIL)
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