Island continent that existed until the end of the Late Cretaceous period
North America during the Campanian
Laramidia was an island continent that existed during the Late Cretaceous period (99.6–66 Ma), when the Western Interior Seaway split the continent of North America in two. In the Mesozoic era, Laramidia was an island land mass separated from Appalachia to the east by the Western Interior Seaway. The seaway eventually shrank, split across the Dakotas, and retreated toward the Gulf of Mexico and the Hudson Bay. The masses joined, forming the continent of North America.
Laramidia is named after the Laramide orogeny. The name was coined by J. David Archibald in 1996.[1]
^Archibald, J. David (1996). Dinosaur extinction and the end of an era: what the fossils say. New York: Columbia University Press. ISBN 023107624X.
Laramidia was an island continent that existed during the Late Cretaceous period (99.6–66 Ma), when the Western Interior Seaway split the continent of...
from the Two Medicine Formation and lived in the island continent of Laramidia. As a ceratopsian, Achelousaurus would have been a herbivore and it appears...
known from western North America, which formed the island continent of Laramidia during most of the Late Cretaceous. Ceratopsids are characterized by beaks...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
Centrosaurine fossil remains are known primarily from the northern region of Laramidia (modern day Alberta, Montana, and Alaska) but isolated taxa have been...
of the genera Dynamoterror from southern Laramidia (New Mexico) and Thanatotheristes from northern Laramidia (Alberta), and they were able to replicate...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
continent of North America into two landmasses; one in the west named Laramidia and Appalachia in the east. Since they were separated from each other...
Gulf of Mexico to the Arctic Ocean. The two land masses it created were Laramidia to the west and Appalachia to the east. At its largest extent, it was...
Kaiparowits Formation dates to the late Campanian age and was deposited on Laramidia, an island continent, when North America was divided at the center by...
they travel in the zeppelin. "Laramidia (The Dinosaur Big City)" – All the dinosaurs get together and sing about Laramidia, also known as the Dinosaur Big...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
Kaiparowits Formation dates to the late Campanian age and was deposited on Laramidia, an island continent, when North America was divided at the center by...
"harvester") is a genus of tyrannosaurid dinosaur from the Late Cretaceous of Laramidia, approximately 80.1-79.5 Ma. Thanatotheristes contains only one species...
Midwestern United States, which was once part of the ancient continent of Laramidia. The tribe was named by Nicholas R. Longrich in 2011 for the description...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
Furthermore, in order to reach southern Laramidia from Asia, Alamosaurus would have had to cross through Northern Laramidia, which contains no known sauropod...
divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere...
000 ft). Extensive drainage from the neighboring continents, Appalachia and Laramidia, brought in vast amounts of sediment. Together with the formation of a...
separated the elevated areas of Laramidia in the west and Appalachia in the east. Three dinosaur clades found in Laramidia (troodontids, therizinosaurids...
South America Appalachia (Mesozoic) – Mesozoic land mass separated from Laramidia to the west by the Western Interior SeawayPages displaying short descriptions...
formed from alluvial floodplains of large rivers in coastal southern Laramidia; sandstone beds are the deposit of rivers, and mudstone beds represent...
frills.[citation needed] Chasmosaurines evolved in western North America (Laramidia). They are currently known definitively from rocks in western Canada,...
al. (2013) examined herbivore coexistence on the island continent of Laramidia during the Late Cretaceous. It was concluded that ankylosaurs were generally...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
western North America, on what was then an island continent known as Laramidia. Tyrannosaurus had a much wider range than other tyrannosaurids. Fossils...
Seaway, a large inland sea that split North America into two landmasses, Laramidia to the west and Appalachia to the east. The plateau where dinosaurs lived...
of small tyrannosauroid theropod from the Late Cretaceous in southern Laramidia. It contains a single species, Suskityrannus hazelae, and the type specimen...
Chilenia Cimmeria Congo Craton Cuyania East Antarctica Euramerica Kalaharia Kazakhstania Laramidia Laurentia North China Pampia Sahul Siberia South China...
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