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Rhinophrynus dorsalis Pipa snethlageae Pipa pipa Pipa parva Pipa myersi Pipa carvalhoi Pipa aspera Pipa arrabali Xenopus laevis Xenopus tropicalis Pseudhymenochirus merlini Hymenochirus boettgeri
0 40 80 120 156 Time (MYA)
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