Telmatosaurus fossil map
Where fossils of Telmatosaurus have been found, shown on the Earth as it looked about 66 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 66 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

| Group | Iguanodonts & duck-bills |
|---|---|
| Lived | 83.6–66 million years ago (Campanian to Maastrichtian) |
| Periods | Cretaceous |
| Family | Telmatosauridae |
| Named by | Nopcsa 1903 |
| Fossil records | 23 occurrences at 18 locations (PBDB) |
| Found in | Romania, France |
| Rock formations | Sînpetru, Densuș-Ciula, Sebeş, Râul Mare, Şard, txn:519377 |
About Telmatosaurus
Telmatosaurus (meaning "marsh lizard") is a genus of basal hadrosauromorph dinosaur from the Late Cretaceous of Romania. It was relatively small for its group, measuring approximately 5 m (16 ft) in length and 600 kg (1,300 lb) in body mass, which has been explained as an instance of insular dwarfism.
Text in “About” is quoted from the Wikipedia article Telmatosaurus (revision 1343760446), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q133856.