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| Music by | JP Rende and Kathryn Raio-Rende |
| Lyrics by | Annie Evans |
| Publisher | Sesame Street Inc. Easy Reader Music |
"Dinosaurs Were Big and Small" is a Sesame Street song performed in episode 4608.
Prairie Dawn and Snuffy sing about how different species of dinosaurs came in different sizes. Prairie, posing as a wannanosaurus, illustrates a small dinosaur, while Snuffy dresses as an apatosaurus, a very large dinosaur.