LECTURE 1

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Author:
rcornelio
ID:
246806
Filename:
LECTURE 1
Updated:
2013-11-13 23:39:37
Tags:
BIOLFLORA FAUNA
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Description:
Introduction
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  1. Give three examples of organisms shared by at least two Southern Continents:
    • bony fish 
    • rattites
    •  northophagus :
  2. what are the five features of
    northophagus
    • identified by pollen grans and leaffossils
    • 100 myapollinated by wind ,
    • fossils onceoccurred in anarticaa
    • and WA currently found in Aus NZ  and VIC
    • flowering plants
  3. Give me 6 features of the glosopterris
    plant

    T/F 
    the separation of gondwana created southern current whose circum polar





    current reduced temperature of Aus
    and increase aridity
    • Extinct now
    • found in coal deposits in india ,south africa and Australia & Antarctica
    •  fossils include leaves, stems roots
    • not pollen were once dominant tall tresstounge shaped leaves ,
    • looked like ferns founf in the perminan age 248-246 mya
  4. Describe Continental Drift
    The lithosphere has techtonic platesthat can move. When the plates colide the crust gets pushed down the mantle ,when the plates move apart the magna from the mantle is pushed up at hotspots , lava flows out and add on to edges of the plates . Colliding of twoplates results in uplift of new mountains
  5. give the order gondwana broke
  6. india broke going north colliding
    • with asia follwed by africa
    • NZ moved 80 mya
    • last two were australia and SA
    • Aus 50 - 45 mya and South America was
    • 30 mya

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