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  2. Tundra of North America - Wikipedia

    en.wikipedia.org/wiki/Tundra_of_North_America

    The adversity of soil and climatic conditions proves to low production levels, as well as little biomass accumulation due to slow rates of nutrient release in cold and wet soils, specifically as a result of limited nitrogen and phosphorus (Nadelhoffer et al. 1996) Additionally, there are low temperatures and strong winds in the tundra causing most vegetation to be dominated by woody plants ...

  3. List of Appalachian dinosaurs - Wikipedia

    en.wikipedia.org/wiki/List_of_Appalachian_dinosaurs

    This is a list of dinosaurs whose remains have been recovered from Appalachia. During the Late Cretaceous period, the Western Interior Seaway divided the 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, the dinosaur faunas on each of them were ...

  4. List of North American dinosaurs - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Predatory dinosaurs from this time period included the tyrannosaurids Tyrannosaurus, Nanotyrannus (which may just be a juvenile of the former) and Dryptosaurus, the ornithomimids Ornithomimus, Dromiceiomimus, Struthiomimus, the oviraptorids Anzu, Leptorhynchos and Ojoraptorsaurus, the troodontids Pectinodon, Paronychodon and Troodon, the ...

  5. Watch video of 'dinosaur highway' found with hundreds of ...

    www.aol.com/news/watch-video-dinosaur-highway...

    The dino tracks are believed to have been made by multiple species about 166 million years ago. ... Megalosaurus was a theropod, a class of dinosaurs that were ancestrally carnivorous, bipedal and ...

  6. Dinosaur paleobiogeography - Wikipedia

    en.wikipedia.org/wiki/Dinosaur_paleobiogeography

    Many dinosaur species in North America during the Late Cretaceous had "remarkably small geographic ranges" despite their large body size and high mobility. [3] Large herbivores like ceratopsians and hadrosaurs exhibited the most obvious endemism, which strongly contrasts with modern mammalian faunas whose large herbivores' ranges "typical[ly] ... span much of a continent."

  7. Dinosaur - Wikipedia

    en.wikipedia.org/wiki/Dinosaur

    While the dinosaurs' modern-day surviving avian lineage (birds) are generally small due to the constraints of flight, many prehistoric dinosaurs (non-avian and avian) were large-bodied—the largest sauropod dinosaurs are estimated to have reached lengths of 39.7 meters (130 feet) and heights of 18 m (59 ft) and were the largest land animals of ...

  8. Morrison Formation - Wikipedia

    en.wikipedia.org/wiki/Morrison_Formation

    Foster, J. 2007. Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. 389pp. Foster, J.R. 2003. Paleoecological Analysis of the Vertebrate Fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain Region, U.S.A. Albuquerque, New Mexico: New Mexico Museum of Natural History and Science ...

  9. Muttaburrasaurus - Wikipedia

    en.wikipedia.org/wiki/Muttaburrasaurus

    Muttaburrasaurus was a genus of herbivorous iguanodontian ornithopod dinosaur, which lived in what is now northeastern Australia sometime between 112 and 103 million years ago [1] during the early Cretaceous period.