I think the "lines" of pastels are getting more and more blurred all the time. I'd be far more inclined to describe a pastel based on its visual characteristics, than to try and guess what "line" it may have descended from. Especially since the likelihood of it being exclusively of that lineage is slim. It's kind of like putting up a picture of an AKC registered dog, and asking folks to guess who it's grandparents are. We can look at the dog and tell what breed it is and its quality...but it's lineage is a mystery unless you have the paperwork/records in front of you.