Pentagons that tile the plane

The problem here is to find a single tile shape with five sides which can tile an infinite floor without leaving holes. I tried finding new solutions, but I think all the tiles I found had been previously found by someone else. Someone claimed the recipe I was using in my search was new.

Here are the known solutions:

Here are the solutions I found. (I have about 2000 more candidate new solutions, but I haven't developed the tools to judge them. Probably about 6 will be real solutions.)

Here is another solution by Mike Korn:

Here's the recipe I'm using in my search.

David Eppstein's tiling related links
David Eppstein's generally geometric links
Ed Pegg's Chaotic Tiling combines the 160-60-140-100-80 tile with another to produce chaotic tilings.
I decorated my half bath with these tiles.
Here's a gallery of my mom's art.
Table of Contents