Back زاحفة منجلية Arabic Drepanosaure Catalan Drepanosaurus Spanish داسیسوسمار Persian Drepanosaurus French דרפנוזאורוס HE Drepanosaurus unguicaudatus Italian 드레파노사우루스 Korean Drepanosaurus Dutch Drepanozaur Polish
| Drepanosaurus Temporal range: Late Triassic
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| Fossil | |
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| Sketetal diagram scale bar = 1 cm | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | †Drepanosauromorpha |
| Family: | †Drepanosauridae |
| Genus: | †Drepanosaurus Pinna, 1979 |
| Species: | †D. unguicaudatus
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| Binomial name | |
| †Drepanosaurus unguicaudatus Pinna, 1979
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Drepanosaurus (/drəˌpænəˈsɔːrəs/; "sickle lizard") is a genus of arboreal (tree-dwelling) reptile that lived during the Triassic Period. It is a member of the Drepanosauridae, a group of diapsid reptiles known for their prehensile tails. Drepanosaurus was probably an insectivore, and lived in a coastal environment in what is now modern day Italy, as well as in a streamside environment in the southwestern United States.