hmmm. that timeline has little to do with the way the constellations revolve. on average, it takes 2,100 years or so for a zodiac sign to rotate one space along the ecliptic.
so assuming jc is the beginning of pisces means fourteenth century bc moses was in aries. which doesn't help the theory that moses has anything to do with the astrological bull.
also, if i remember correctly, the astrology of the babylonian era isn't an exact match for the greek zodiac.