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There's a Kindle version of a book on Amazon which details the outcomes of the seven ecumenical councils. It may have what you're looking for and it's fairly inexpensive. The link is here.
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I am not sure what you mean by "semi-official", but here are some writings of the Church Fathers that may be of interest:
The first three references can be found at CCEL.
I don't think that any anathema would have been issued against a doctrine of the soul having parts, as that is stated clearly in some of the above (e.g. that the spirit is the higher part of the soul). Origen was anathematized for professing the pre-existence of souls, but that doesn't sound like what you recall.