Final answer:
Early Christian art emerged in the late second or early third century and was influenced by Greco-Roman culture. Stylistic traits of Early Christian art include the use of portrait busts, sarcophagus reliefs, and smaller objects like consular diptychs.
Step-by-step explanation:
Early Christian art emerged in the end of the second century and the beginning of the third century. It developed due to the influence of Greco-Roman culture and the continuation of certain Roman artistic traditions by the Early Christians.
Some stylistic traits of Early Christian art (ca. 260 - 326) include the use of portrait busts, sarcophagus reliefs, and smaller objects like consular diptychs.