Marshalltown Formation
Geological Formation in the United States / From Wikipedia, the free encyclopedia
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]
Quick Facts Type, Underlies ...
Marshalltown Formation | |
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Stratigraphic range: Middle to late Campanian | |
Type | Geological formation |
Underlies | Wenonah Formation |
Overlies | Englishtown Formation |
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Dinosaurs known from the formation:[2][3]
- Hypsibema crassicauda
- Hadrosaurus sp.
- Nodosauridae indet.
- Dryptosaurus sp.
- Tyrannosauroidea indet.
- Dromeosauridae indet.
- Theropoda indet.