single word requests - What is the name for punctuation marks such as commas and periods that separate things like clauses or sentences?

When I'm editing people's writing, I recently started writing the comment "put an article here" rather than "put a 'the' or 'a' here".

Similarly, right now I have to put, "you need a comma or period here" ... is there one word that can encompass both 'comma' and 'period'? I don't want to put something so general like "you need a punctuation mark here"