Unfortunately, an entire skull was never recovered, but only the fragments of frontal, parietal and occipitaltiljnih) bones. Some of them have prominent ridges over the eyes as well as the slanted brow. Most fossil findings were gathered in the deposits of the fourth layer of pleistocen (Homo sapiens Neanderthalensis zone). Interesting enough, a lot of the bones were found at a single spot, which was and remains until today the cause of many arguments. Since an entire skeleton was never found - most of the findings are fragmentary - the interpretation of Krapina findings mostly inspired differing opinions.

Some researchers think that the charred and fragmented bones are a proof of cannibalism, and that the bones themselves were intentionally torn apart and broken in order to get to the bone marrow inside of them. On some of the parietal bones there are visible scratching signs, which is also related to the act of cannibalism. However, other scientists think that the Krapina cave could have been a ritual site, where the dead were buried, and that is why a large number of human bones was found there.