West Side Story: Laramidia
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Which sea way divided eastern and western portions of n america? | Cretaceous Interior Seaway (during the late cretaceous)
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| What were these two separated lands called? | Appalachia in the east and laramidia in the west
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| Did the cretaceous interior seaway stay static? | No, it constantly fluctuated
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| In the Late Cretaceous, which dinosaur species dominated the ecosystem in various parts of the globe? | Sauropods
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| Which other group in saurischians greatly diversified in the Cretaceous? | Theropods
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| In the group, maniraptorans, which species diversified? | dromaeosaurs, oviraptorosaurs, and therizinosaurs.
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| In the southern hemisphere ecosystems, who was the dominant meat-eater? | abelisaurs
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| Who were the dominant meat eaters in the north? | Tyrannosaurids
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| In which hemisphere did anklyosaurs diversify the most? | Northern hemisphere
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| Where did hadrosaurids diversify the most? | Asia, North America, and several other continents
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| In which hemisphere did the marginocephalians diversify? | Northern
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| How do angiosperms differ from gymnosperms? | Angiosperms grow covering for seeds (such as fruit) so animals can eat and deposit. Gymnosperms are naked seeds.
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| What are Teridophytes? | Plants that come from the water (moss, ferns, horse tails)
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| What is the last 18 million years of the Cretaceous called? It extends from about 83 to 65 myo. | Campanian and Maastrichtian
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| Where is the most complete dinosaur fossil record? | Laramidia
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| Which dinosaurs lived on Laramidia? | Theropods (tyrannosaurids, dromaeosaurs, troodontids, oviraptorosaurs), Ceratopsians, hadrosaurids, anklyosaurs.
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| Which of these groups is the most common? | Hadrosaurids and ceratopsids
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| What do the fossils found suggest about all groups of dinosaurs? | They were restricted to one region instead of engaging in long-range migratory behavior.
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| Why would plants and animals be endemic to a restricted province? | Latitudinal zonation of temperature and rainfall
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| Utah sits on a biozone? What's a biozone? | A biozone is the boundary. In this case, Utah sits on the boundary of North and South.
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| What are other key factors as to why the dinos would be endemic to a restricted area? | plant ecology and seaway fluctuation
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| What are the two steps to creating a new species? | Species must be isolated and then diverge so greatly that they do not recognize one another as a potential mate.
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| When was the Maastrichtian? | The end of the Cretaceous (70-65 myo)
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| What was the Cretaceous Interior Seaway doing during the Maastrichtian? | It was shallow and connected Laramidia and Appalachia
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| Most complete fossil record is where? | Western North America
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| How long ago was the Maastrichtian? | 60-65 mya (last 4 million years of the cretaceous)
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| How long was the Campanian | 80-70 mya
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| Which group completely died out during the cretaceous? | STEGOSAURS! NOOOO!!
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Created by:
Chelseagirl2508
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