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Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle - Nature

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Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle - Nature

The origin of vertebrate paired appendages is one of the most investigated and debated examples of evolutionary novelty1–7. Paired appendages are widely considered as key innovations that enabled new opportunities for controlled swimming and gill ventilation and were prerequisites for the eventual transition from water to land. The past 150 years of debate8–10 has been shaped by two contentious theories4,5: the ventrolateral fin-fold hypothesis9,10 and the archipterygium hypothesis8.

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Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle - Nature

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Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle - Nature

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