Difference between revisions of "Template:Cambrian explosion graphical timeline"

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imported>Alnagov
m (Khomentovskiy opinion about age of lower boundary of Nemakit-Daldynian is erroneous, and it is not sustained by his colleagues)
imported>Alnagov
m
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|bar7-from=-542
 
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|bar7-left=.257
 
|bar7-right=.375
 
|bar7-right=.375
 
|bar7-colour={{period color|cambrian series 1}}
 
|bar7-colour={{period color|cambrian series 1}}
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|bar10-colour={{period color|cambrian series 4}}
 
|bar10-colour={{period color|cambrian series 4}}
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|bar11-colour={{period color|cambrian series 4}}
 
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|bar11-border-width=.05
 
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|bar12-left=.381
 
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|bar12-colour={{period color|cambrian series 3}}
 
|bar12-colour={{period color|cambrian series 3}}
 
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|bar13-colour={{period color|cambrian series 1}}
 
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|bar14-left=0.506
 
|bar14-left=0.506
 
|bar14-text=<span style="font-size:90%">[[Nemakit-Daldynian|Nemakit-<br>Daldynian]]</span>
 
|bar14-text=<span style="font-size:90%">[[Nemakit-Daldynian|Nemakit-<br>Daldynian]]</span>
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|bar15-to=-526
 
|bar15-text=<span style="font-size:90%">[[Tommotian]]</span>
 
|bar15-text=<span style="font-size:90%">[[Tommotian]]</span>
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|note4=[[Archaeocyatha]] extinction
 
|note4=[[Archaeocyatha]] extinction
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|note8=[[Small shelly fauna|SSF]] diversification, first [[brachiopod]]s & [[archaeocyatha]]   
 
|note8=[[Small shelly fauna|SSF]] diversification, first [[brachiopod]]s & [[archaeocyatha]]   
|note8-at=-537
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|note8-size=75%
 
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|note8-nudge-down=-1.2
 
|note8-nudge-down=-1.2
  
 
|note9= First [[halkieriid]]s, [[Helcionelloida|mollusсs]], [[hyolitha]]s [[Small shelly fauna|SSF]]
 
|note9= First [[halkieriid]]s, [[Helcionelloida|mollusсs]], [[hyolitha]]s [[Small shelly fauna|SSF]]
|note9-at=-539
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|note9-at=-537
 
|note9-size=75%
 
|note9-size=75%
 +
|note9-nudge-down=0.3
  
|note10=''[[Treptichnus pedum]]'' trace, first bivalve [[arthropod]] fossils
+
|note10=''[[Treptichnus pedum]]'' trace
 
|note10-at=-542
 
|note10-at=-542
 
|note10-size=75%
 
|note10-size=75%

Revision as of 11:36, 2 June 2010

Key Cambrian explosion events
One possible timescale for events around the Cambrian/Precambrian boundary.

Axis scale: millions of years ago.

Stratigraphic scale of the ICS with Russian Lower Cambrian subdivision and Precambrian/Cambrian boundary.