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

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