Cantwell Formation
The Cantwell Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period, it has also yielded numerous dinosaur tracks at Denali National Park. Contemporary therizinosaurid and hadrosaurid trackways in the formation indicate that the area was once a major point of immigration between Asia and North America during the Late Cretaceous for many families of dinosaur. Fossil plants similar to water lilies found in the same area suggest the area was a wetland or marsh, with ponds and other large standing bodies of water. 

Footprints discovered in the formation include those of theropods, hadrosaurs, ceratopsians, ankylosaurs, pterosaurs and birds, notably the "Magnoavipes denaliensis". 
Q736917
geologic formation
Concept
Q797
Alaska
LOC
Q40614
fossils
Concept
Q44626
Cretaceous
TIME
Q392928
period
Concept
Q430
dinosaur
Concept
Q217136
Denali National Park
LOC
Q579912
therizinosaurid
Concept
Q271841
hadrosaurid
Concept
Q188438
theropod
Concept
Q271841
hadrosaur
Concept
Q131381
ceratopsian
Concept
Q273617
ankylosaur
Concept
Q179204
pterosaur
Concept
Q6731820
Magnoavipes
UNK
Q17514246
Cantwell Formation
LOC
instance of
located in the administrative territorial entity
time period
instance of