People are faced with a lot of claims that we evolved from apes, and that there has been an evolutionary creation over an enormous period of time. This would also propose a continued evolutionary process.
The claim of millions of years is brought into scriptural conflict by D&C 77:6 "... the hidden things of his economy concerning this earth during the seven thousand years of its continuance, or its temporal existence." This is proposing that the only period that the earth will spend in a temporal existence (where things live and die) is 7 thousand years. This is also expressed in D&C 77:12 " ...even so, in the beginning of the seventh thousand years will the Lord God sanctify the earth, and complete the salvation of man..."
The millenium is also referred to as the time for the earth to rest (being a sabbath rest). The millenium is a thousand years. So if it is a sabbath rest then that also points to only 6 thousand years as coming before it.
The question also is one of whether evolution is a sound scientific principle as so many believe it to be?