New Defender's Study Bible Notes
2:19 God formed. A better, and quite legitimate, translation is “had formed.” Thus there is no contradiction with the order of creation in Genesis 1 (animals before man). The first chapter of Genesis gives a summary of the events on all six days of creation; the second chapter provides more details of certain events of the sixth day.
2:19 the name thereof. The animals named by Adam included only birds, domesticable animals, and the smaller wild animals that would live near him. It would be possible for him to name about three thousand of the basic kinds of these animals in about five hours (one every six seconds), and this would be adequate both to acquaint Adam with those animals and also to show clearly that there were none who were sufficiently like him to provide companionship for him. This is still further proof that man did not evolve from any of the animals, even those that were most directly associated with him.