Vertebrate Classes
Major vertebrate lineages from jawless fish to mammals.
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(((((Mammalia:300,(Reptilia:280,Aves:150):20):50,Amphibia:370):40,(Osteichthyes:420,Chondrichthyes:400):20):30,Agnatha:500):50,Cephalochordata:600);
Major vertebrate lineages from jawless fish to mammals.
(((((Mammalia:300,(Reptilia:280,Aves:150):20):50,Amphibia:370):40,(Osteichthyes:420,Chondrichthyes:400):20):30,Agnatha:500):50,Cephalochordata:600);