I did some more research on the pattern. The basic small fan block can be set in so many ways, similar to the multitude of log cabin sets. The others I have seen have a solid in the corner as the base of the fan, then scrapy and a contrasting color for the rest of the block. Some had fans in opposite corners.
With the blocks set in diagonal lines like yours (minus the snakes' heads) it is "Falling Timbers."
Ciba Vaughan, in Romantic Patchwork & Quilting lists variations called: 'Rocky Road to Jericho', 'Baby Bunting' and 'Cleopatra's Puzzle.' She says she prefers the Victorian era name, 'The Wanderer'.
I remember seeing it as 'Snake in the Hollow' with the fan squares connecting but meandering, but I don't know where.
Search for "Baby Bunting" for the most usual contemporary use, I think.