Clepsysaurus
| Clepsysaurus Temporal range: Late Triassic,  | |
|---|---|
| Holotype tooth (AMNH 2331) of C. veatleianus seen from two different angles | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Clade: | Archosauromorpha | 
| Clade: | Archosauriformes | 
| Clade: | Archosauria | 
| Genus: | †Clepsysaurus Lea, 1851 | 
| Type species | |
| †Clepsysaurus pennsylvanicus Lea, 1851 | |
| Other species | |
| 
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| Synonyms | |
Clepsysaurus (from Greek: κλεψύδρα klepsúdra, 'water thief' and Greek: σαῦρος saûros, 'lizard') is a dubious genus of extinct archosaur from the Carnian Passaic Formation and Lockatong Formation of Lehigh County, and York County, Pennsylvania.
Two species are known: C. pennsylvanicus (the type species) and C. veatleianus.