Question: What was a mountain building period that ended 440 million years ago, that durring this time a unit of interbedded greywackes and shales that outcrops in eastern New York State were deposited in a deep marine setting in a foreland basin during this time? 
Sentence (from "Taconic orogeny"): A great mountain chain formed from eastern Canada down through what is now the Piedmont off the East coast of the United States.
Relevant evidence: No