So I assume along with the great and the good that the Mars Eagle types was introduced to support the introduction of denarius and thus it dates to 211 BCE and after. Right? right. 
Ok. Fine. But doesn’t it seem likely that the Roman eagle inspired the eagle on the Capua As (HN Italy 503, BM 1937,0606.19 illustrated below) and Didrachm (HN Italy 480):
I know I know. Iconography is a terrible way to date coins but it does strike me as a little funny.
Liv Mariah Yarrow 