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Exam 16: The Early Mesozoic ERA

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Question 1

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By Late Triassic, reef-building had been taken over by

A) sponges and algae.
B) stromatolites.
C) hexacorals.
D) thrombolites.

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Question 2

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Select the line of evidence below that would NOT suggest that dinosaurs were warm-blooded.

A) In dinosaur communities, less than ten 10 percent of the individuals were carnivores.
B) Ecologic suppression of mammals suggests dinosaurs had endurance and speed.
C) Dinosaurs exhibited egg-laying behaviors such as positioning eggs in rows and then abandoning the nests.
D) There is an abundance of tubes exist in dinosaur bones, suggesting numerous blood vessels like similar to those in modern birds and mammals.

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Question 3

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During Early Triassic, after the Antler episode of accretion, the __________ approached the Pacific margin of North America and collided with it, thus causing the __________ orogeny.

Reefs did not recover from the end-Paleozoic extinction until

The most common fossils in Lower Triassic rocks are

A feathered fossil once considered to be the oldest bird, but now is viewed as a feathered dinosaur, is named __________, and it lived during __________.

Before becoming attached to North America, the __________ was an accretionary wedge deposit that formed in a subduction zone off western North America.

During Mesozoic, the __________ was the embayment of the sea that projected into equatorial Pangaea.

During Mesozoic, the swim bladder, which evolved from the lungs of some fish, allowed fish to regulate their

Regarding Figure 6 in Earth System Shift 16-1, the body mass of a 25-year-old Tyrannosaurus is between __________ kilograms.

Comparing Early Triassic and Late Jurassic paleogeography, shows that __________ have moved much farther north than Arabia during this interval.

The end-Triassic mass extinction is closely associated with

With the possible exception of the __________ family, all of the modern conifer families were present during Early Mesozoic.

__________ were an important planktonic algal group that appeared during earliest Jurassic.

_________ were the largest (physically) , which were herbivorous saurichians.

For a brief interval during Early Triassic, shallow subtidal environments flourished with __________ for the first time since early Paleozoic.

What U.S. state was completely submerged in the Sundance Sea?

The survival of only a small percentage of Permian species produced some strikingly wide biogeographic distributions of some very early Triassic fossils, including these fossils:

During Mesozoic, coral reefs were largely restricted to

Early Triassic diversification of the __________ seems to have issued from two genera that survived the end-Permian mass extinction.