1973 in paleontology
Archosauromorphs
Crocodylomorph research
- William Roger Hamilton describes a second specimen of Tomistoma dowsoni from the Siwa Oasis of Egypt.
Newly named dinosaurs
Data courtesy of George Olshevsky's dinosaur genera list.| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
Efraasia | gen nov | Valid | Galton | Middle Norian | Löwenstein Formation |  Germany |