Part of tufo block that collapsed. It was probably later moved to its current position. It has slowly been eroding its its current oval shape. The block may have been moved to its current position during Soprintendenza excavation around 15 years ago. Based on its red color it may have been associated originally with the early phase walls (eg. SU 5437 nearby, and 5460, 5417, 5439).
Fragmentary tufo block south of 5436