It is named after Devon, England, where rocks from this period were first studied.During the Devonian Period the pectoral and pelvic fins of lobe-finned fish evolved into legs as they started to walk on land as tetrapods around 397 Ma.. 
Ṣugbọn ó tipẹ́ tí wọ́n ti pínyà.Àwọn ìtọ́kasí àwọn eniyan alààyèàwọn Ọjọ́ìbí ni 1984.. 