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North Dakota is underlain by Precambrian crystalline basement rock, although these rocks are less well understood than in neighboring states. In the Proterozoic, a mountain range known as the Western Dakota Mobile Belt formed between two billion and 1.8 billion years ago in connection with the Trans-Hudson orogeny, stretching north into Manitoba and Saskatchewan before eroding almost entirely ...
There is also much in the way of geology and hydrology. North Dakota is about 340 miles (545 km) east to west and 211 miles (340 km) north to south, with a total area of 70,704 square miles (183,123 km²), making it the 19th largest of the 50 U.S. states. About 2.4% of North Dakota's area is covered by water.
The Hell Creek Formation is an intensively studied geological formation of mostly Upper Cretaceous and some Early Paleocene rocks in North America, named for exposures studied along Hell Creek, near Jordan, Montana. The formation stretches over portions of Montana, North Dakota, South Dakota, and Wyoming.
The Bullion Creek Formation is a geologic formation in western North Dakota. [1] It preserves bones and tracks of an extinct crocodile and other fossils of Late Paleocene age. [ 2 ]
Areas of Cenozoic North America that were covered by seawater tended to be areas near the modern coasts. [135] The Cannonball Sea near Minot, North Dakota was the last of the North American interior. [136] Cenozoic marine invertebrates are best known from deposits near the coasts and tend to resemble modern forms.
(Click to zoom) See legend below This is the legend for the North American geological map above. Geologic map of North America. The geology of North America is a subject of regional geology and covers the North American continent, the third-largest in the world. Geologic units and processes are investigated on a large scale to reach a ...
The fossil was collected in 2015 by the North Dakota Geological Survey, a state agency dedicated to geology and public education about minerals and fossils. In fact, Zietlow said, NDGS 10838 was ...
Turtle Mountain, or the Turtle Mountains, is an area in central North America, in the north-central portion of the U.S. state of North Dakota and southwestern portion of the Canadian province of Manitoba, approximately 62 miles (100 km) south of the city of Brandon on Manitoba Highway 10 / U.S. Route 281.