There are 16 words that end with 'osaurs'.
| barosaurs | allosaurs | dinosaurs |
| apatosaurs | archosaurs | carnosaurs |
| hadrosaurs | pterosaurs | stegosaurs |
| ankylosaurs | brontosaurs | cotylosaurs |
| plesiosaurs | pelycosaurs | ichthyosaurs |
| tyrannosaurs | ||
Note: These 16 words that end with 'osaurs' are found from the USA & Canada version of the tournament Scrabble word list.