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Peces y Anfibios - Laboratorio de Ontogenia y Filogenia

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Milokunmingia y Haykouichthys, <strong>de</strong>l cámbrico inferior, revelan<br />

la adquisición <strong>de</strong> arcos branquiales pareados, ojos pares, cápsulas<br />

óticas, y una musculatura axial más compleja<br />

Haikouichthys

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