The interphase covers the fourth century AD to the end of the fifth century AD. Fabrics of this period are a connection between those of the Greco-Roman era and the third Coptic era. They still use the Greco-Roman lines and objects, but they lack liveliness and movement and the accurate portrayal of nature. They are unique, however, for using a lot of Christian symbols.
The third phase, or the Coptic phase, stretched between the sixth and ninth centuries AD. The art of the Coptic era had symbolic paintings of people and animals, and that symbolism later became one of the most important characteristics of this art.