Category:Language articles with unreferenced extinction date

This is a maintenance category. It is used for maintenance of the Wikipedia project and is not part of the encyclopedia. It contains pages that are not articles, or it groups articles by status rather than content. Do not include this category in content categories. This is a hidden category. It is not shown on its member pages, unless the corresponding user preference 'Show hidden categories' is set.

This category is triggered by the language infobox if there is a value for 'extinction' (other than "?") or for 'era' and there is no ref field.

All checked against Linguist List 2015-3-24.