Difference between heat of neutralization and enthalpy of neutralization

They are the same

Explanation:

Heat of neutralization and enthalpy of neutralization is the same. It measure the change in enthalphy when one equivalent of acid and one equivalent of base react to produce 1 mole of water and salt. They heat of neutralization are usually negative and it depends on the reactant involved. For acid and bases that are weak the are pH dependent.

i think the miocene epoch spans the time from 23 million to 12 million years ago.