GEOLOGY
PALEONTOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The fossil was taken there and buried.
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Alaska was once colder than it is now.
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Alaska was once warmer than it is now.
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There is no explanation.
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Detailed explanation-1: -Palm leaves found fossilized in the rocks bordering the Malaspina Glacier near Yakutat have a story to tell since palms could not possibly grow there today. Either the climate of the Earth was different when the palms grew 45 million years ago or else the rocks in which the fossils occur moved in from someplace else.
Detailed explanation-2: -Dinosaur remains in Alaska-teeth, bones, footprints, and skin impressions have been discovered only in the last few decades. Traces of other prehistoric animals and plants, including bones and tusks from Ice Age mammoths and mastodons, are found throughout much of the state.
Detailed explanation-3: -The highest is 100 °F (37.8 °C) in Fort Yukon on June 27, 1915. The lowest Alaska temperature is −80 °F (−62.2 °C) in Prospect Creek on January 23, 1971, 1 °F (0.6 °C) above the lowest temperature recorded in continental North America (in Snag, Yukon, Canada).
Detailed explanation-4: -Many small organisms can be preserved within these layers of sediment through time. The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt. Studying fossil pollen and other fossils helps scientists to learn more about climate change.