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

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