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. 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: Hesperonyx martinhotomasorum

Length*: | 4 m | 13.1 ft |
Weight*: | 280 kg | 617 lb |
*The largest known specimen
Period
Epoch: Late Jurassic
Stage: Latest Kimmeridgian
Years: 154.8–149.2 Ma
Details
Status: valid
Author: Maria Rotatori et al.
Year: 2024
Distribution
Area: Europe
Country: Portugal
Region: Lisbon
Formation: Lourinhã
Locations
Sources
Material: Limb bones.
References: Rotatori, F. M.; Ferrari, L.; Sequero, C.; Camilo, B.; Mateus, O.; Moreno-Azanza, M. (2024). "An unexpected early-diverging iguanodontian dinosaur (Ornithischia, Ornithopoda) from the Upper Jurassic of Portugal".