Template:Geological category see also
From HandWiki
Usage
{{Geological category see also}}
will automatically generate a see also list of two categories: one for the previous time span and one for the next.
For example, on Category:Jurassic animals, the template will generate:
The template auto-detects whether a category exists: if a category is missing, or there is no future or past time span, it will only list one category. e.g., on Category:Quaternary genera, the template will generate: