What a great find! I'm so glad you got pictures. Healthy looking too.
I've emailed with a pretty well known herper about the Pogona species. And he is a very helpful gentleman.
Apparently the Barbata and the Centralian have a large size range - More so the Pogona barbata. They can be identified according to location. The larger species of Barbata (found North east coastal region Qld,NSW) can be the result of food gluts in early development, and in the smaller (found around Adelaide SA ) the lack of food. That's the theory.
Pogona barbata Bearded Dragon
Pogona brevis (rankini) Black Soil Bearded Dragon
Pogona microlepidota- Kimberly Bearded Dragon
Pogona minima - Western Bearded Dragon
Pogona mitchelli Dragon
Pogona nullarbor Nullabor Bearded Dragon
Pogona vitticeps Inland Bearded Dragon
Pogona minor - Dwarf Bearded Dragon - This is the 1 we have Sherman! You met her. Both she and her late mate grew to 30 cms full adult size.
Em