Clowan:Rheam creg-oaylleeagh
- Usage
{{Rheam creg-oaylleeagh|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}}- Italic parameters are optional, bold required.
| Sampleyr Rheam fossylagh: Carboniferous–Early Cretaceous | ||||
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| Rang oaylleeagh | ||||
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Illustrates the Rheam creg-oaylleeagh of a taxon, the geological range of a stratigraphic unit, or other ranges on a geological timescale. Intended for use in {{taxobox}}es, {{Infobox rockunit}}s, and other infoboxes. For pre-Phanerozoic ages, see {{Long Rheam creg-oaylleeagh}}.
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 Rheam creg-oaylleeagh, which works in exactly the same way as documented here.
You can also specify "earliest" and "latest" to add a "ghost" bar beyond the accepted Rheam creg-oaylleeagh. 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 latest=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 earliest=middle Cambrian.
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 {{next period}} and {{period start}}. This is really easy to do, so feel free to add the period yourself to make future editors' lives easier!
Jeeagh er reesht
[reagh y bun]For organisms whose fossil range extends significantly before the Ediacaran, use Template:Long fossil range.