That Period of Time from the Creation of the Universe and the World to the bringing into existence of Man - Adam and Eve - is known as the Pre-Adamic Era [PAE].
The fact that remnants and traces of organisms and human fossils are found to be dated earlier than the Genealogy of Adam has been a cause of much controversy and heated debate throughout the World for many generations.
Creationists attribute the origin of all matter of life and living forms as they now exist to distinct Acts of Creation by the Lord God Jehovah who Created the Universe and the World in Six Days.
Evolutionists and Darwinists propound the theory that all matter of life and living forms as they now exist are the result of biological evolution, gradual changing, and natural progression; they postulate that the forebears of Man were 'ape-men'.
Apes are 'animals' - Pimates! Although Apes may have 'evolved', Man has 'developed'.
The Lord God Jehovah gave Man 'dominion over the fishes of the sea, and the fowls of the air, and the beasts, and the whole earth, and every creeping creature that moveth upon the earth [Genesis 1:26 DRB].'
'And God said: Let the earth bring forth the living creature in its kind, cattle and creeping things, and beasts of the earth, according to their kinds. And it was so done [Genesis 1:24 DRB]. And God made the beasts of the earth according to their kinds, and cattle, and every thing that creepeth on the earth after its kind. And God saw that it was good [Genesis 1:25 DRB].'
But how could the Lord God Jehovah Create the Universe and the World in just Six Days?
The Biblical Day was comparable to 1000 Years.
From the Old Testament: 'For a thousand years in thy sight are as yesterday, which is past. And as a watch in the night, things that are counted nothing, shall their years be [Psalm 89:4-5 DRB].'
Saint Peter the Apostle in his Second Epistle wrote: 'But be not ignorant, my beloved, of this one thing, that one day with the Lord is as a thousand years, and a thousand years as one day [2 Peter 3:8 DRB].'