The church dedicated to San Saturnino stands on the outskirts of Ussana. The irregular, partly original exposed stone facade has a gabled roof on the left, with a distinctive sloping roof on the right. The central part culminates in a single-light bell gable tower. The asymmetrical facade of the church of San Saturnino, centrally features a gabled finial, flanked on the right by a roof distinguished by a sloping roof.
The main portal appears framed and surmounted by a round-arched window opening. Culminating centrally is a single-light bell gable tower. Probably of Provençal workmanship through the Victorine monks, its earliest structure dates from the 12th century and was built in the Romanesque style. To this period belong the binavate and biabsidate halls. The church, currently not used for the performance of liturgical functions, is awaiting completion of restoration.
The church reveals a dedication to the Cagliari martyr Saturninus in the local designation of “Santu Sadurru.”
It is first mentioned in a manuscript from 1581, where it appears to have been the ancient parish church.
Inside the church is a Roman sarcophagus (3rd century AD) with rich sculptural decoration on the front and two sides.
