GEOL 1404 Lab Final Word Scramble
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| Question | Answer |
| 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 |
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SarahElaine
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