4Fossil sites
Andaikhudag Formation
Andaikhudag Formation in Mongolia: 4 fossil sites. Typical age: 133–121 million years (Cretaceous).
4Fossil sites
4Finds
133–121 million yearsTypical age
CretaceousMain period
Where its fossils were found
Cretaceous
By geological period
Cretaceous4
What was found
Dinosaurs · 4Ambiortus, Holbotia, Psittacosaurus
Towns with the most fossil sites nearby
Other formations of the same period
Cretaceous
Nemegt Formation 154Djadokhta Formation 60Baynshire Formation 58Baruungoyot Formation 51Gurvan-Eren Formation 39Dzun-Bain Formation 34Mogotuin Formation 13Anda-Khuduk Formation 10Turga Formation 8Öösh Formation 7Khuren Dukh Formation 6Tsagaantsav Formation 6Ulaanoosh Formation 3Ulan Argalant Formation 3Javkhlant Formation 3Beds of Nogon Tsav 3Sharin-Gol Formation 3