Interested in addressing what is being said, I did not claim that this was an argument you had made; rather, I was trying to connect the points you are posting within a thread you originated. My reponse to those ideas, however poorly it was communicated, was contained in the totality of my post.
It is clear that to say that one believes in “evolution” is not to necessarily commit heresy. The problem is that the term “evolution” has a variety of meanings, and most of them express views that are contrary to the dogma of the Church. That’s what Buffalo seemed to be getting at, and you did the same thing with him that you did with me; of all he posted, all you could come up with was that “evolution” is not forbidden.
Let me try to make a point about one issue with evolution. The following is a video about eukaryotes and prokaryotes. If you listen, you will hear the science framed in evolutionary terms - randomness and survival. The other is that the fundamental order of the universe has always existed, if not eternally, then as a potential to bring itself into existence. These are its pillars, and they are assumptions based on a philosophical/metaphysical understanding of the world. Replace these with the idea that the existence of all these forms is the result of creative acts of God, and you will get an understanding of how I see it and how this is a far better way of understanding what this all is and how it got here.
Translating the metaphors used in Genesis into those of the modern world, we can say that on the third day of God’s creative labours, He brought forth from the earth, from the elements that constitute a lifeless planet, the existential reality of the simplest of living things. Weaving together, organizing atoms into the constituent parts that form the physical dimension of cells, the spirit of prokaryotes, which He created from nothing, brought them into existence as one totality, a new form of being different from and greater than their component parts - able to incorporate external matter into themselves and procreate. From those beginnings He created eukaryotes, possibly utilizing living matter, a procaryote in that case, uniting it in a new kind of being that allowed for a future of multicellular organisms. On the last day of God’s labours, however that took in terms of our frame of reference within space time from the beginning of His creation, we came into existence as whole beings, persons, whose only ancestor is God the Father.