The Bible is clear. The ancestors of every animal that ever lived were created during Creation Week. Each basic animal type was created "after his kind" and all subsequent individual animals, including dinosaurs, descended from these created categories.

“Then Abraham gave up the ghost, and died in a good old age, an old man, and full of years: and was gathered to his people” (Genesis 25:8).

“For as by one man’s disobedience many were made sinners, so by the obedience of one shall many be made righteous” (Romans 5:19).

“O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and oppositions of science falsely so called” (I Timothy 6:20).

“All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness” (II Timothy 3:16).