Preheat oven to 350°F. Prepare Dinosaur Cakelet Pan with baking spray containing flour. In a medium bowl, stir together flour, sugar, baking powder, baking soda and salt; set aside. Using a mixer with a paddle attachment, mix together butter, yogurt, eggs and vanilla. Gradually add flour mixture and mix on medium speed for 1 minute. Spoon batter into each cavity, filling 3/4 full. Bake for 18-20 minutes or until a toothpick inserted comes out clean. Remove from oven and cool cakes in pan for 10 minutes. Invert cakes onto cooling rack to cool completely. Wash pan and repeat with remaining batter. Decorate as desired.