வார்ப்புரு:Geological range/doc
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 ==Usage==
  &lt;code&gt;&lt;nowiki&gt;{{&lt;/nowiki&gt;Geological range|'''first appearance''' (required)|''last appearance''|''text to display''|earliest=''earliest putative fossil''|latest=''latest putative fossil''|ref=''References''|prefix=''anything to display before the range''|PS=''anything to display after the range''}}&lt;/code&gt;
 
 : '''Note''' The first parameter (bold above) may not be omitted; in particular it is an error to specify only {{para|earliest}} and/or {{para|latest}}. Italic parameters are optional, bold required.
 {{taxobox
 |name=Example
 |fossil_range={{Geological range|Carboniferous|early Cretaceous|earliest=Ordovician}}
 |genus = ''Rangea''
 |regnum = Animalia
 |species = ''Rangea examplus''
 }}
 Illustrates the fossil range of a taxon, the geological range of a stratigraphic unit, or other ranges on a geological timescale. Intended for use in {{tn|taxobox}}es, {{tl|Infobox rockunit}}s, and other infoboxes. For pre-Phanerozoic ages, see {{tl|Long fossil range}}.
 
 You can give a numeric range, or specify the periods involved. The range will be quoted in text before the timeline, unless you specify a third parameter—leaving it blank will result in no text being provided.
 
 To illustrate the range when it spans before the [[Ediacaran]] (i.e. deep into the precambrian), you should use [[Template:Long fossil range]], which works in exactly the same way as documented here.
 
 You can also specify &quot;earliest&quot; and &quot;latest&quot; to add a &quot;ghost&quot; bar beyond the accepted fossil range. You can use these parameters for whatever you like; they may be useful in the case of living fossils such as the [[coelacanth]], where you may wish to specify &lt;code&gt;latest=0&lt;/code&gt; to make the bar faintly extend to the present; they may also be useful where &quot;earliest&quot; fossils are not universally accepted—for instance, the [[octocorals]] only have a good fossil record from the Tertiary, but there are claims of Cambrian representatives. In this case, you may wish to specify &lt;code&gt;earliest=middle Cambrian&lt;/code&gt;.
 
 ==Examples==
 &lt;pre&gt;{{Geological range|Permian}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|Permian}}&lt;/div&gt;
 
 &lt;pre&gt;{{Geological range|Permian|Jurassic}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|Permian|Jurassic}}&lt;/div&gt;
 
 &lt;pre&gt;{{Geological range|Permian|Jurassic|earliest=Devonian|latest=Cretaceous}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|Permian|Jurassic|earliest=Devonian|latest=Cretaceous}}&lt;/div&gt;
 
 &lt;pre&gt;{{Geological range|68|65|earliest=Permian|latest=0|PS= (see article for discussion)}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|68|65|earliest=Permian|latest=0|PS= (see article for discussion)}}&lt;/div&gt;
 
 &lt;pre&gt;{{Geological range|68|65.5|late Cretaceous}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|68|65.5|late Cretaceous}}&lt;/div&gt;
 
 &lt;pre&gt;{{Geological range|68|65|}}&lt;/pre&gt;
 &lt;div style=&quot;text-align:center&quot;&gt;{{Geological range|68|65|}}&lt;/div&gt;
 
 If you receive an error when specifying a period name, check you've spelt it right; if so, it probably isn't yet incorporated into the templates {{tl|next period}} and {{tl|period start}}. This is really easy to do, so feel free to add the period yourself to make future editors' lives easier!
 
 ==See also==
 For organisms whose fossil range extends significantly before the Ediacaran, use [[Template:Long fossil range]].
 
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