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Agkistrodon piscivorus Crotalus viridis Atheris nitschei Dolichophis jugularis Boiga dendrophila Bamanophis dorri Thamnophis sirtalis Natrix natrix Diadophis punctatus Hypsiglena torquata Naja kaouthia Naja annulata Dendroaspis polylepis Micrelaps cf. muelleri Micrelaps muelleri Micrelaps bicoloratus Psammophylax variabilis Gonionotophis brussauxi Lycophidion capense Bothrophthalmus lineatus Bothrolycus ater Lycodonomorphus laevissimus Lycodonomorphus rufulus Boaedon upembae Boaedon fuliginosus Atractaspis corpulenta Atractaspis bibronii Atractaspis micropholis Atractaspis irregularis Atractaspis boulengeri Atractaspis microlepidota Homoroselaps lacteus Polemon fulvicollis laurenti Polemon fulvicollis Polemon robustus Polemon christyi Polemon fulvicollis graueri Polemon cf. robustus Polemon collaris Polemon cf. christyi Polemon acanthias Polemon notatus Chilorhinophis gerardi Macrelaps microlepidotus Amblyodipsas concolor Xenocalamus michelli Xenocalamus transvaalensis Amblyodipsas microphthalma Amblyodipsas dimidiata Amblyodipsas polylepis Amblyodipsas unicolor Xenocalamus bicolor Xenocalamus mechowii Amblyodipsas ventrimaculata Aparallactus modestus Aparallactus niger Aparallactus cf. guentheri Aparallactus lunulatus Aparallactus werneri Aparallactus jacksonii Acrochordus granulatus Boa constrictor Rena humilis Eutropis longicaudata
0 40 80 120 165 Time (MYA)
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