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Genus: Chelodes Davidson & King, 1874 † (DB: 5 SP)
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Chelodes actinis
Cherns, 1998 † (FOSSIL)
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Chelodes bergmani
Davidson & King, 1874 † (FOSSIL)
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Chelodes cooperi
(J.R.M. Bergenhayn, 1960 †) (FOSSIL)
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Chelodes mirabilis
Butts, 1941 † (FOSSIL)
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Chelodes whitehousei
Runnegar & al., 1979 † (FOSSIL)
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Genus: Conodia Stinchcomb & Darrough, 1995 † (DB: 2 SP)
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Conodia acuminata
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Conodia levicosta
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Genus: Eukteanochiton Vendrasco & Runnegar, 2004 † (DB: 1 SP)
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Eukteanochiton milleri
Vendrasco & Runnegar, 2004 † (FOSSIL)
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Genus: Hemithecella Butts , 1941 † (DB: 4 SP)
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Hemithecella abrupta
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Hemithecella eminensis
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Hemithecella expansa
Butts, 1941 † (FOSSIL)
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Hemithecella quinquelites
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Genus: Matthevia Walcott , 1885 † (DB: 4 SP)
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Matthevia erecta
Pojeta & al., 2005 † (FOSSIL)
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Matthevia variabilis
Walcott, 1885 † (FOSSIL)
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Matthevia wahwahensis
Vendrasco & Runnegar, 2004 † (FOSSIL)
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Matthevia walcotti
Runnegar & al., 1979 † (FOSSIL)
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Genus: Plectrochiton Cherns , 1998 † (DB: 1 SP)
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Plectrochiton tegulus
Cherns, 1998 † (FOSSIL)
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Genus: Robustum Stinchcomb & Darrough, 1995 † (DB: 2 SP)
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Robustum nodum
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Robustum phallerium
Stinchcomb & Darrough, 1995 † (FOSSIL)
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Genus: Spicuchelodes Cherns, 1998 † (DB: 1 SP)
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Spicuchelodes cressmani
(Pojeta & Runnegar, 1976 †) (FOSSIL)
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