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1 gen 541000000 anni a. C. - Chordados peces

Descrizione:

Primeros acordados primitivos con una sistema respiratorio branquias de filtrado y una columna carente de un sistema nervioso bien desarollado. Surgen en el periodo cambrico como peces sencillos, todavía lejanos de los peces cartilaginosos

Aggiunto al nastro di tempo:

Filogenia

ByEduardo Perez Correa
14 mag 2020
1
0
330

Data:

1 gen 541000000 anni a. C.
Adesso
~ 5883516 years ago
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