Moreover, epitaphs and religious dedications were surely built not only in stone but also in poorer and perishable materials which are nowadays lost.
In cemeteries from the Roman Era there would probably been sepulchres with epitaphs made in stone, ceramics, wood… and others without any external marker . Unfortunately, excluding incredibly exceptional situations, only the ones made of imperishable materials are likely to have been preserved .
For these reasons, the sample of our study is incomplete and sometimes, damaged. We cannot expect to have information about all the people who received an epitaph or dedicated a votive monument for a deity during the Roman Era. However, the reason behind the preservation (or not) of monuments is mainly accidental and in certain circumstances, we could assume that it is a random selection of the original sample and therefore,
representative.