So, right now I am making a cladogram (More of a dendrogram) for a kingdom of fictional species, and I'm not exactly sure how to represent a certain relationship.
Let's say that the oldest class in the kingdom is Clade A. And, while it is a clade in itself, it also evolved into two other classes. The first class it evolved into was Clade B, but Clade A still persists. Then, later on, Clade A evolves into Clade C - but still persists.
If I was to represent this on a dendogram, how would it be done?