There, between its leaflike folds, I saw a loose pearl as big as a coconut. Its globular shape, perfect clarity, and wonderful orient made it a jewel of incalculable value.
So it could be that the ancestor of all pterygotes had three pairs of lobes, too, which could have been used to glide from the tops of, say, scale trees.
But it also had some leaf-shaped teeth that point to it having a more omnivorous diet than a typical theropod, because this tooth shape is what we see in some plant-eating dinos.