Paleozoic Life, Mesozoic Events, Mesozoic Life(invertebrates Only)

42 Questions  I  By Blairnoelledavidson
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1.  Why did large bodies of nonmarine sediment accumulate in eastern North America during early Mesozoic time?
A.
B.
C.
D.
2.  This usually helps bring on global warming:
A.
B.
C.
D.
3.  Bioturbation is caused by _________.
A.
B.
C.
D.
E.
4.  The term for crumpled, altered rock sequences that are trapped between converging plates is ________. 
A.
B.
C.
D.
E.
5.  The largest predator of the Burgess Shale was ________.
A.
B.
C.
D.
E.
6.  This type of coral replaced the principle Silurian reef-forming coral as the main reef-forming coral during Devonian and Carboniferous.
A.
B.
C.
D.
E.
7.  During Late Cretaceous, there was a continental seaway that connected the Arctic Ocean with the _______.
A.
B.
C.
D.
E.
8.  What evidence is there for the existence of a foreland basin during Jurassic time in western North America?
A.
B.
C.
D.
9.  South America split from Africa during _______.
A.
B.
C.
D.
E.
10.  What was the tectonic and geographic configuration of western North America during Late Cretaceous time?
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B.
C.
D.
11.  During Cretaceous, the general direction of motion of the subducting Pacific Plate under western North America was ______.
A.
B.
C.
D.
E.
12.  What is the sedimentary evidence for rifting of Pangea early in the Mesozoic Era?
A.
B.
C.
D.
13.  Why did the innovation of the seed liberate land plants from their dependence on moist conditions and allow them to invade drier habitats in the Devonian?
A.
B.
C.
D.
14.  Carbonate microfossil very common in Cretaceous chalks
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B.
C.
D.
E.
15.  One of the most abundant three-lobed, swimming or crawling arthropods of the Cambrian were ________.
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B.
C.
D.
E.
16.  When did crinoids reach their greatest diversity?
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B.
C.
D.
E.
17.  What might have caused the "Cambrian Explosion" of diversity?
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B.
C.
D.
E.
18.  The unique calcareous and phosphatic fossil group spanning the Neoproterozoic-Cambrian boundary is called _______.
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B.
C.
D.
E.
19.  During Permian-Trassic, a volcanic arc collided with the west coast thus causing this orogeny.
A.
B.
C.
D.
E.
20.  This type of organism comprised the principle reef-builder during the Cambrian.
A.
B.
C.
D.
E.
21.  Increased CO2 in the atmosphere results in _______.
A.
B.
C.
D.
22.  Characteristic tectonic features of eastern rifted margin of North America were ______.
A.
B.
C.
D.
E.
23.  Arizona's Painted Desert, exposed in the Petrified Forest National Park, is developed mainly in this formation.
A.
B.
C.
D.
E.
24.  What groups of animals were conspicuous in Triassic and Jurassic seas, and what groups that had been prominent in late Paleozoic time were absent?
A.
B.
C.
D.
25.  Reef building organisms during the Mesozoic are called
A.
B.
C.
D.
E.
26.  Geological age of Franciscan Complex melange of California is _________.
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B.
C.
D.
E.
27.  This rock unit fills many of the Triassic rifts on eastern coast of North Amercia.
A.
B.
C.
D.
E.
28.  Mexico separated from South America during _______. 
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B.
C.
D.
E.
29.  Millions of years required for Pangea to rift apart into all Mesozoic continents.
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B.
C.
D.
E.
30.  In the western U.S., Upper Jurassic swampy plain deposits rich in donosaur fossils are collectively called ________.
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B.
C.
D.
E.
31.  Continents of Pangea were still clustered closely together or joined during _______.
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B.
C.
D.
32.  How did Ordovician life differ from Cambrian life?
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B.
C.
D.
33.  Found in the Burgess Shale fauna, this is one of the oldest chordates. 
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B.
C.
D.
E.
34.  How did the reef ecosystem change during the Cretaceous Period?
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B.
C.
D.
35.  Characterizes end of Cretaceous.
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B.
C.
D.
36.  Why did stromatolites decline during Cambrian and Ordovician time?
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B.
C.
D.
37.  Warmest geological time interval listed below.
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B.
C.
D.
38.  The age of the Burgess shale fauna is mainly __________.
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B.
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D.
E.
39.  What is the Burgess Shale fauna's significance?
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B.
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D.
E.
40.  Cretaceous spans this entire interval (in millions of years). 
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B.
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E.
41.  This fossil shell has symmetrical valves.
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B.
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D.
E.
42.  Most important macrofossil group for correlation of Mesozoic strata
A.
B.
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D.
E.
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