|
|
,_______________________________________________________ Protostomia
|
| ,____________________________________ Pterobranquios
__| |
| |____________________________________ Equinodermos
|_ Deuterostomia __|
| ,___________________ Enteropneustos
| |
|_ Circotretes __| ,______ Urocordados
| |
|_ Cordados _| ,__ Cefalocordados
|___|
|__ Vertebrados
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