There are a lot of species-form combinations under *taur and *humanoid. Many of them have implications and aliases.
They can certainly be useful, when looking for specific combinations. However, I am pretty sure species-form combinations are usually not allowed.
Perhaps some of the more general ones could stay, and the ones with specific species invalidated?
That or just invalidate all of them; we don't have any equivalents under *feral or *anthro, after all.
Specifically, just look through *taur and *humanoid. The vast majority of these should probably be invalidated.
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