This template is used by other Geological period templates for preprocessing of period names. It performs a conversion to lowercase and substitution of synonyms.

{{Period id|period name}}

{{Period id|Late-Cretaceous}} → upper cretaceous

"https://si.wikipedia.org/w/index.php?title=සැකිල්ල:Period_id/ලේඛය&oldid=496299" වෙතින් සම්ප්‍රවේශනය කෙරිණි