The researchers suggest that during a drought the turtles congregating at one of the few remaining water sources, and died there once that last water hole dried out. Then the skeletons were transported to the present location by a debris flow during a catastrophic rainfall event, forming a Konzentrat-Lagerstätte.
The researchers propose that during a drought, turtles gathered at a single water source and perished there as it dried up. Their remains were subsequently moved to the current site by a debris flow triggered by heavy rain, creating a Konzentrat-Lagerstätte.