Abstract
Trace fossils, as everyone knows by now, provide us with direct information about fossil behavior, and they offer us a wide variety of mysteries to solve in the area of paleoethology (literally, “the study of ancient behavior”). Chief among these mysteries are “what?”, “who?”, “why?” and “where?”. What we especially want to know is what a given trace fossil looks like in three dimensions, what type of organism(s) created it, for what reason(s) they made it, and under what type of environmental conditions the trace was made.