Arizona Mudfossil Fossil Hunt. June 2020. Potential Skulls 1 of 3.

Some of the potential skulls we found. The ones that I believe are amphibian (kind of look like very large frog heads) are skulls. The suture lines and the fact that we found a graveyard of about 30 of them identical in shape (differing in size) in one location rules out that they are simply rocks. They are not frog heads. We don't know what they are. We have found a frog head fossil, but it is barely a third the size of these. Whatever these were, the record of their existence is abundant in this area. We have no certain answers or opinions about most of what we find. We are simply amassing clues that may help us understand the world that once existed.