Cycads are plants that were thriving in the Jurassic Period , roughly 200 million to 100 million years ago and here is one living in my back yard. Truely a window into the deep past-These Plants are now popularly known as 'food of the dinosaurs'. Click on the image to see more clearly the effect of looking through an oval window in rippled glass which has been engraved with the word JURASSIC.