Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page or via the Support page.
Dinosaur: Fylax thyrakolasus

Length*: | 4.2 m | 13.8 ft |
Weight*: | 360 kg | 794 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Years: 72.1–66 Ma
Details
Status: valid
Author: Prieto-Márquez & Farias
Year: 2021
Distribution
Area: Europe
Country: Spain
Region: Lleida
Formation: Figuerola
Locations
Sources
Material: Left dentary with teeth.
References: Prieto-Marquez, Albert; Carrera Farias, Miguel (2021). "A new late-surviving early diverging Ibero-Armorican duck-billed dinosaur and the role of the Late Cretaceous European Archipelago in hadrosauroid biogeography".