[citation needed] Following the example of earlier scholars like Ammonius of Alexandria, Euthalius divided the New Testament into chapters and verses.
Euthalius's divisions were quickly adopted throughout the Greek Church, bringing uniformity to the liturgical readings.
Today, scholars use their presence or absence in a manuscript as an indication of its age, since they were widely used by copyists.
After having long lain in oblivion, the works of Euthalius were published in Rome, in 1698, by Lorenzo Alessandro Zaccagni, Prefect of the Vatican Library.
They are embodied in the first volume of his Collectanea Monumentorum Veterum Ecclesiæ Græcæ ac Latinæ.