Rock formations
Fossils come from rock layers laid down at a given place and time. These are the formations behind the dinosaurs in DinoDex, with the most productive first.
- Morrison FormationColorado · 7 dinosaurs
- Hell Creek FormationMontana · 5 dinosaurs
- Lance FormationWyoming · 5 dinosaurs
- Dinosaur Park FormationAlberta · 4 dinosaurs
- Nemegt FormationÖmnögovi Province · 4 dinosaurs
- Djadokhta FormationÖmnögovi Province · 3 dinosaurs
- Bahariya FormationEgypt · 2 dinosaurs
- Elrhaz FormationAgadez Region · 2 dinosaurs
- Frenchman FormationSaskatchewan · 2 dinosaurs
- Kem Kem GroupMorocco · 2 dinosaurs
- Scollard FormationAlberta · 2 dinosaurs
- Antlers FormationOklahoma · 1 dinosaur
- Candeleros FormationNeuquén Province · 1 dinosaur
- Cedar Mountain FormationUtah · 1 dinosaur
- Cerro Barcino FormationChubut Province · 1 dinosaur
- Cerro Fortaleza FormationSanta Cruz Province · 1 dinosaur
- Chinle FormationNew Mexico · 1 dinosaur
- Clearwater FormationAlberta · 1 dinosaur
- Cloverly FormationMontana · 1 dinosaur
- Horseshoe Canyon FormationAlberta · 1 dinosaur
- Huincul FormationNeuquén Province · 1 dinosaur
- Ischigualasto FormationSan Juan Province · 1 dinosaur
- Jiufotang FormationLiaoning · 1 dinosaur
- Judith River FormationMontana · 1 dinosaur
- Kaiparowits FormationUtah · 1 dinosaur
- Kayenta FormationArizona · 1 dinosaur
- La Colonia FormationChubut Province · 1 dinosaur
- Öösh FormationÖvörkhangai Province · 1 dinosaur
- Painten FormationBavaria · 1 dinosaur
- Romualdo FormationCeará · 1 dinosaur
- Sainte-Barbe Clays FormationHainaut · 1 dinosaur
- Solnhofen FormationBavaria · 1 dinosaur
- Taynton Limestone FormationOxfordshire · 1 dinosaur
- Weald Clay FormationSurrey · 1 dinosaur
- Yixian FormationLiaoning · 1 dinosaur