of
Marcus Antonius (32 BC) depicting a
legionary eagle
(aquila) on the reverse Guide animals from the
ver sacrum and their legends may explain the use of animal insignia by the
Roman army.
Gaius Marius was the first to adopt the eagle in all the
signa militaria; previously the eagle had been the first and highest of the
signa. Others in use were the wolf, the
Minotaur, the horse and the boar.
Andreas Alföldi has linked each animal with a
Roman god, starting with the eagle and
Jupiter and ending with the boar of
Quirinus: thus the wolf would be related to
Mars, the
Minotaur to
Liber and the horse to
Neptune. Dumézil emphasizes the affinity of
Indo-Iranian human and warrior gods with animal forms: among the
Iranian god of victory
V(e)r(e)thragnas
incarnations, seven are of animal form, including the bull, horse, boar and hawk, each of which is associated at one time or another with a
ver sacrum and Roman army insignia. On the
recto of coins from Campania appears a human character bearing over his head that of a boar, and on the
verso the word
ROMA. German scholar C. Koch interprets this character as god
Quirinus, since he identifies the boar,
aper, as the animal symbol of the god. Dumézil remarks that the boar is the animal symbolizing
Freyr, a
Vane (god) in Scandinavian mythology, who rides one. ==The Roman
ver sacrum==