Shamanism is much more specific than that. As CJB said, it involves using animals as intermediaries to an upper world whose structure and mode of operation is spelt out in some detail. Every shamanic cult we know of puts its belief system down in pictures. There are no images like that from Western Europe.

This book gives a nice description of shamanic belief and practice:

Last of the Shor Shamans

One intriguing point the authors make in passing is that shamanism is known not to have been the original belief system of those people. But they don't give you any clues as to what they believed before (about 2000 years ago, I think), or why they switched.