I'm thinking those are man made. There have not been any animals collected from the would/could be "intergrade zone" that is thought to naturally occur with myriolepis and trivirgata, to my knowledge. If so, nobody has made mention of it. I could be wrong, but you and I would have heard about it. I have unfortunately seen animals that looked like that that were AZ gracia and a unknown trivirgata locality crossed. All of the myriolepis/trivirgata crosses that I have unfortunately seen looked more myriolepis than trivirgata. The only animals that even look like a natural myriolepis/trivirgata intergrade are locality Bay of LA animals that Randy Limburg collected just east of the town of Bay of LA in the first outcroppings going up the grade. They are pure myriolepis. I will post pic's of that blood line as soon as I can.

Jer