Sequential restoration of the Newark basin from the end of syn-rift deposition to the onset of syn-rift deposition. The width of the basin varied from about 25 km at the start of deposition of the Stockton Formation to >100 km at the end of syn-rift deposition (i.e., at the end of rifting). The present-day maximum width of the basin is ~50 km. Older syn-rift formations are more asymmetric than younger units. Modified from Withjack et al. (2013).