Marshalltown_Formation
Marshalltown Formation
Geological Formation in the United States
The Marshalltown Formation is a Mesozoic geologic formation. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]
Dinosaurs known from the formation:[2][3]
- Hypsibema crassicauda
- Hadrosaurus sp.
- Nodosauridae indet.
- Dryptosaurus sp.
- Tyrannosauroidea indet.
- Dromeosauridae indet.
- Theropoda indet.