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