Hey Bert,
Glad you decided to stop by and take a look. Here is a great link that talks about the "tar spot" that is the black fungus you asked about. It's very similiar to the anthracnose disease that tends to attack sycamore trees.
Tar Spot on Maple treesFrom reading this it appears that you will do fine replanting in that spot as long as you raked and removed the infected leaves.
Good luck.