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Nodyn:Amrediad daearegol

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{{amrediad daearegol|first appearance (required)|last appearance|text to display|cynharaf=earliest putative fossil|diweddaraf=latest putative fossil|cyf=References|rhagddodiad=anything to display before the range|ON=anything to display after the range}}
Italic parameters are optional, bold required.
Amrediad amseryddol: Carbonifferaidd–Cretasaidd Cynnar
Dosbarthiad gwyddonol
Teyrnas: Incertae sedis
Genws: Rangea
Rhywogaeth: 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 {{blwch tacson}}, {{Infobox rockunit}}s, and other infoboxes. For pre-Phanerozoic ages, see {{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 "cynharaf" and "diweddaraf" to add a "ghost" 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 coelocanth, where you may wish to specify diweddaraf=0 to make the bar faintly extend to the present; they may also be useful where "earliest" 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 cynharaf=Cambriaidd Canol.

{{Amrediad daearegol|Permaidd}}
{{Amrediad daearegol|68|65|cynharaf=Permaidd|diweddaraf=0|ON= (Gweler yr erthygl am drafodaeth)}}
68–65 Miliwn o fl. CP (Gweler yr erthygl am drafodaeth)
{{Amrediad daearegol|68|65.5|Cretasaidd Diweddar}}
Cretasaidd Diweddar
{{Amrediad daearegol|68|65|}}

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 {{Cyfnod nesaf}} and {{Dechrau cyfnod}}. This is really easy to do, so feel free to add the period yourself to make future editors' lives easier!