Sometimes the category system here on dA can get a little confusing. For example; you created a piece using pixeling techniques but you intend to use it as an icon. Where do you categorize it? A lot of people just are not sure. So this article should help to clear it up.
When it comes to categorization, intended use can be a huge factor. In this case, Furcadia portraits would belong in the Icons and Handhelds gallery instead of Pixel Art or Anthro, because while it may have been created pixel by pixel and the subject is anthro, it was created for use as a portrait (often shortened to port), with specific size parameters and place of display kept in mind. By putting them in Icons, ports are easy to find and media doesn't separate them; some ports are not done in a pixel by pixel manner but as they are similar in theme and intended use, they should be seen in the same area. As this is not the first time this has been discussed, I feel the need to