Poythress on Gen 1

I conclude then, that Genesis 1 harmonizes with fiat creation.  Yes, God could have created each kind of animal instantly, by his word.  But it also harmonizes with theistic evolution, because it does not teach that God used no means.  Rather, it is silent about means in order to concentrate on the main point.

- Poythress, Vern.  Redeeming Science (Crossway, 2006) .  p. 255