<p>The ancient altar of Saturn in the *Forum, variously attributed to Ianus, the Pelasgians, Hercules, and Servius Tullius (cf. Coarelli, <i>LTUR</i>). Sources locate the altar ‘at the bottom of the *Clivus Capitolinus’ (<i>in imo clivo Capitolino ... ubi ara dicata ei deo</i> [sc. <i>Saturno</i>]: Festus 430) and ‘in front of the Senaculum’ (<i>ante senaculum</i>: Macrob., <i>Sat</i>. 1.8.2). The Senaculum was an open area in front of the Temple of Concord and Basilica Opimia in the late Republic (Varro, <i>Ling</i>. 5.156), an area later occupied by Tiberius’ Temple of Augustan Concord (Festus 470; *Concordia Augusta, Aedes). On the basis of these and other references, Coarelli (1976-77) has identified the cappellacio blocks behind the *Rostra of Augustus, which Lanciani had associated with the Volcanal, as the remains of the altar of Saturn (cf. *Concordia Augusta, Aedes).</p>