Eucercosaurus
| Eucercosaurus Temporal range: Early Cretaceous, | |
|---|---|
| Sacral vertebrae CAMSM 55614-16 from the holotype | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Ornithopoda |
| Clade: | †Iguanodontia |
| Genus: | †Eucercosaurus Seeley, 1879 |
| Species: | †E. tanyspondylus |
| Binomial name | |
| †Eucercosaurus tanyspondylus Seeley, 1879 | |
| Synonyms | |
| |
Eucercosaurus (meaning "good-tailed lizard") is the name given to a genus of ornithopod dinosaur from the Albian stage of the Early Cretaceous. It was an ornithopod discovered in the Cambridge Greensand of England and is known from 19 centra, 3 sacrals, 4 dorsals and 12 caudals, and a neural arch found near Trumpington, Cambridgeshire. The type species, E. tanyspondylus, was described by British paleontologist Harry Seeley in 1879.
It is considered a dubious name, and was once considered an ankylosaur. According to a 2020 study, Eucercosaurus and Syngonosaurus were basal iguanodontians.