The bedrock at Syracuse, New York is primarily Ordovician sedimentary rock. This means it was formed during the Ordovician Period, which lasted from about 485 to 443 million years ago.

Specifically, the bedrock in Syracuse is part of the Queenston Formation, which is composed of shale, sandstone, and siltstone. These rocks were deposited in a shallow marine environment.

It's important to note that the exact age of the bedrock can vary slightly depending on the specific location within Syracuse. However, the overall age remains in the Ordovician Period.