1973 in paleontology Newly named dinosaurs Newly named dinosaurs

| Name_ | Novelty | Status_ | Authors | Location_ | Notes |
|---|---|---|---|---|---|
| Alocodon | Gen et sp nov | Valid | Thulborn | Portugal | n Ornithischia of uncertain placement |
| Efraasia | gen nov | Valid | Galton | Germany | basal sauropodomorph |
| Kelmayisaurus | gen et sp nov | Valid | Zhiming | China | carcharodontosaurid |
| Phaedrolosaurus | gen et sp nov | nomen dubium | Zhiming | China | described from a single tooth |
| Phyllodon | Gen et sp nov | Valid | Thulborn | Portugal | possible Hypsilophodontid |
| Shantungosaurus | gen et sp nov | Valid | Hu | China | largest known ornithischian |
| Trimucrodon | Gen et sp nov | nomen dubium | Thulborn | Portugal | n Ornithischia of uncertain placement |
| Tugulusaurus | gen et sp nov | Valid | Zhiming | China | n coelurosauria |
| Wuerhosaurus | gen et sp nov | Valid | Zhiming | China | one of the last s stegosaurian |