Suborder Agoniatitina
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Suborder Anarcestina
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Suborder Clymeniina
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Suborder Gephuroceratina
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Suborder Goniatitina
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Suborder Gonioclymeniina
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Suborder Otoceratina
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Suborder Paraceltitina
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Suborder Pharciceratina
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Suborder Prolecanitina
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Suborder Tornoceratina
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Suborder unrecognized
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