Complex sentence: The form of taurobolium presented by later Roman sources probably developed over time, and was not unique to Magna Mater-one was given at Puteoli in 134 CE to honour Venus Caelestia (C.I.L. X.1596)-but anti-pagan polemic represents it as hers.
Split into simpler sentences: The form of taurobolium presented by later Roman sources probably developed over time. It was not unique to Magna Mater-one was given at Puteoli in 134 CE to honour Venus Caelestia (C.I.L. X.1596)-but anti-pagan polemic represents it as hers.