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Diatoms
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Major classes of mollusks present in Mesozoic seas were
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GEOL 1404 Lab Final

TCC Geology 1404 Lab Final Spring 2009

QuestionAnswer
Diatoms (A & C) Construct their shells of silica and were abundant during the Cenozoic
Major classes of mollusks present in Mesozoic seas were (A & B) Cephalopods and Bivalves
The organisms that replaced Paleozoic corals as the major reef builder in the Mesozoic were Rudists
Ammonites of the Mesozoic were characterized by a very complex structure pattern
While on a field trip in Texas, you encounter a reef outcrop from the Cretaceous. Which organism is most likely to constitute the majority of the fossil reef? Rudists
Which of the following corals was present in Mesozoic reef communities schleractinian
The microorganisms that were a major component of the Cenozoic marine community were the ____, although some large forms have also been documented foramnifera
Suspension feeders that were abundant and successful in the Paleogene and neogene include the _____ and______. bryozoans and crinoids, corals
AFter the extinction of the belemnites and ammonites, the cephalopods of the Cenozoic era are characterised by being _____. shell-less
The abundant maring invertebrates of Cenozoic seas included all of the following except Rudists
The extinction of this life form at the end of the Cretaceous set the stage for corals to re-enter their reef building niche Rudists
Which of the following cephalopods did not survive the Cretaceous extinction? ammonite
During the CEnozoic, brachiopods were greatly reduced in their numbers and diversity
These phytoplankton flourished in the Miocene, probably because of increased volcanism: Diatoms
Although organisms in this group were great index fossils of the mesozoic, they ceased to be of great value in the Cenozoic becuase of their lack of hard parts cephalopods
Created by: SarahElaine
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