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gptkb:Danian_Stage
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base of the nannoplankton zone NP4
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gptkb:Santonian_stage
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First appearance of the crinoid Marsupites testudinarius
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gptkb:Floian_Stage
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First appearance of conodont Baltoniodus triangularis
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gptkb:Pragian_Stage
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first appearance of the conodont Polygnathus kitabicus
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gptkb:Tournaisian
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first appearance of fusulinid Eoparastaffella simplex
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gptkb:Albian_stage
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first appearance of planktonic foraminiferan Rotalipora globotruncanoides
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gptkb:Givetian_Stage
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first appearance of Ancyrodella rotundiloba
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gptkb:Sandbian_Stage
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First appearance of graptolite Diplacanthograptus caudatus
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gptkb:Thanetian_Stage
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base of the Ypresian Stage
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gptkb:Terreneuvian_Series
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base of Cambrian Series 2
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gptkb:Tremadocian
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first appearance of the graptolite Tetragraptus approximatus
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gptkb:Tremadocian_Stage
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first appearance of the graptolite Tetragraptus approximatus
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gptkb:Furongian_Series
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First appearance of conodont Iapetognathus fluctivagus
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gptkb:Maastrichtian
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gptkb:Cretaceous–Paleogene_boundary
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gptkb:Lochkovian_stage
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first appearance of conodont Eognathodus sulcatus and Latericriodus steinachensis Morph beta
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gptkb:Aalenian_Stage
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first appearance of the ammonite genus Hyperlioceras
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gptkb:Tremadocian_Age
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first appearance of the graptolite Tetragraptus approximatus
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