If the descriptions already posted are insufficient for you, maybe you are a more tactile person. Why not just go down to a kitchen store and have a look and ask the assistant to explain the differences to you so you can see for yourself?
Clearly, I've failed to express myself well or you would never have suggested I go to a kitchen store and ask someone to explain the differences to me.
No one in our three cookware stores or one restaurant supply emporium here in town ever heard of a Lyon shaped frying pan. I don't think you know what a Lyon shaped frying pan is. I don't think such a product exists because no one seems to be able to provide a valid description of what a Lyon shape frying pan is. Earlier in this thread, someone provided three images — one purporting to be a Lyon shaped frying pan. That same pan is also described all over the internet as an ordinary skillet. If you know the difference, I'd love to know what it is.
I'm sorry I started all this, I should have purchased the first 8" fry pan I saw and thus avoided irritating everyone in this forum. As it is I've irritated myself the most — why does everyone pretend to know what that fantom pan is when it exists only in the mind of some nitwit ad writer.
You were right. Until I read this thread, I didn't know what a Lyon shaped frying pan was. But then I read the thread and saw the photos and it was apparant what it was. I never pretended to know what it was, only made a suggestion how you may obtain an answer that was avoiding you.
I doubt that anybody was irritated at your asking the question, nor in that you were not comprehending people's responses, but your lack of civility in posts does irritate.