highly significantp -value = 0.00017
When data of lepidosaurs, turtles and crocodylians are combined, a weak but statistically highly significant correlation emerges (area: adjusted R 2 = 0.104, p -value = 0.00017, df=120; length: adjusted R 2 = 0.3373, p -value <0.00001, df = 178; Fig. 4 ).