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

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