The dinosaur tooth fairy has been lonely as it’s been a long, long time since the dinosaurs were around.  She hangs around the natural history museum and sees a child who has just, at that moment, lost a tooth, and the dinosaur tooth fairy realizes she needs that tooth.  She chases after the child, to her home, and has to wrestle the  human tooth fairy for it.  They compromise and the dinosaur tooth fairy gives the human tooth fairy a dinosaur tooth, and the dinosaur t.f. gets the human’s tooth.  They are now bff’s.  A little too much going on here and it’s confusing.  It’s a difficult concept for kids to think of how long ago the dinosaurs actually lived, but then to add the tooth fairy to the mix is unnecessary.