Wiktionary
punctuational
a. 1 Pertaining to punctuation. (from 19th c.) 2 (context biology English) Pertaining to punctuationism; taking place very rapidly, especially within a single generation or in a series of rapid steps. (from 20th c.)
Usage examples of "punctuational".
The occasionally emitted punctuational bubbles only reinforced the impression.
In it I was trying to show the borderline between human and animal, the exact comma in the punctuational model of evolution that marked the transition between non-human and human.