oil filter housing diagram

[hotrodrikk]

hey everyone,
I went to change the oil in my wifes 2009 aveo earlier, and the paper filter had come apart, i had to dig part of it out from the bottom of the oil filter housing, underneath of the plastic piece of the filter that had come off was a small black piece with a spring that was just laying in the bottom of it. I have been looking and believe that it may be an anti drainback valve? i was just trying to find a digram with how everything is supposed to go together since i don't think that i removed this part, i really want to make sure that it gets installed correctly. Thanks for any help!