PHACOPIDA (PALAEOZOOLOGY)
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BTTRILOBITA (PALAEOZOOLOGY)
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UDC565.2,15
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Descriptor GERPHACOPIDA (PALÄOZOOLOGIE)
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Descriptor ENGPHACOPIDA (PALAEOZOOLOGY)
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Descriptor FREPHACOPIDA (PALÉOZOOLOGIE)
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Variant GERPHACOPINA (PALÄOZOOLOGIE)
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Variant ENGPHACOPINA (PALAEOZOOLOGY)
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Variant FREPHACOPINA (PALÉOZOOLOGIE)
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NTDALMANITIDAE (PALAEOZOOLOGY)
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NTENCRINURIDAE (PALAEOZOOLOGY)