We are right now working on brain tissues of the mice brain. And we are wondering after we dissect different parts of the brain, how should we know eaxctly which part is which? By immunostaining of specific markers of the brain?
Better than differentiate every single type of neuron, you should use brain regional markers as Pax6, Gbx2, Calretinin, Fgf8, etc. Those are specific of certain regions that can be located in comparison to another of those genes.
Prosomeric model of Puelles L., Martinez S. and Rubenstein could help you.
If you have some images, I could help you directly.