Siliciclastic-dominated environments are considered inhospitable for reefs. Yet through the glacial cycles, these localities may undergo periods of sediment starvation, which opens the environment for biogenic buildups. The Levent shelf is such an environment, sediment fed indirectly from the Nile delta. Here, using high-resolution seismic data and targeted coring, a previously unknown, mostly buried, reef system at the edge of the Levent shelf is presented. This reef system represents a lull in the sediment supply to the Levant shelf in the aftermath of the Last Glacial Maximum (LGM). The reef system developed atop an abrasion surface related to the LGM and persisted for several thousand years, during which it transitioned from the euphotic zone to the mesophotic zone. Termination of the reef phase around 8 Ka coincided with renewal and intensification of sediment supply during the African Humid Period and Sapropel S1. The input of nutrients and sediment during these phase are considered here the kill mechanism. This suite of biogenic build-ups represents a prime example of the mode exchange between siliciclastic and carbonate systems.