NATIONAL GEOGRAPHIC
PREHISTORIC TIME LINE
CHAPTER NINE
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What is the range of length of the Precambrian Era?
What is the range of length of the Paleozoic Era?
What is the range of length of the Mesozoic Era?
What is the range of length of the Cenozoic Era?
How long ago did the earth actually form?
What period did hard-shelled mollusks appear?
What period did early cartilaginous fish first evolve?
What period did plants take root on land?
What period did amphibians emerge from the water?
What period did the single supercontinent come together?
What period did the plants suffer their largest extinction ever?
What period did the dinosaurs take their first step?
What period did birds first take wing?
What period did flowering plants begin to bloom?
What period did mammals fill dinosaurs’ shoes?
What period did hominins descend from the trees?
What period were modern humans born?
What survived a massive inter-planetary collision and threw up the moon?
Where was the world’s oldest known rock structure found?
What was breathable air created by? Describe.
When did shelled mollusks show up in the fossil record?
What country were the earliest vertebrates / jawless fishes found?
What was the early cartilaginous fish found in New Brunswick, Canada?
What is considered the oldest arachnid?
When did plants take root on land?
When did amphibians start hauling themselves out of the water?
What is the common name of the single supercontinent?
What was the Carboniferous period named after?
What did the earliest known reptiles resemble?
When the reptiles took over, what kind of environment was created?
What was the main suspect of the largest plant extinction ever?
Where were the first dinosaur fossil fragments found?
What was the first process which led to the supercontinent break up?
What therapsids managed to survive the Permian mass extinction?
Name both the herbivore and the carnivore that were the foundation of the Jurassic period.
What does Arachaeopteryx mean as birds became airborne some 150 million years ago?
37. What period did plants finally flourish?
38. According to the website, what was the final blow that led to mass extinction of the
dinosaurs?
39. Who filled the “dinosaur’s shoes” following their mass extinction?
40. According to the website, what is perfectly clear when the primates first appeared in trees?
41. What does “hominins” mean?
42. According to the website, name two living animals which are believed to the remnants of
the ice age?
43. Where and when did Homo sapiens first arise?
http://science.nationalgeographic.com/science/prehistoric-world/prehistoric-time-line/