ASTEROTHECACEAE (PALAEOBOTANY)
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BTMARATTIALES (PALAEOBOTANY)
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UDC561.394.6*1
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Descriptor GERASTEROTHECACEAE (PALÄOBOTANIK)
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Descriptor ENGASTEROTHECACEAE (PALAEOBOTANY)
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Descriptor FREASTEROTHECACEAE (PALÉOBOTANIQUE)
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Variant GERASTEROTHECA (PALÄOBOTANIK)
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Variant ENGASTEROTHECA (PALAEOBOTANY)
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Variant FREASTEROTHECA (PALÉOBOTANIQUE)
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NTMARIOPTERIS (PALAEOBOTANY)