Crowned Crested Geckos
The head of a Crowned crested gecko is wider and heavier than normal, being notably shorter than it is wide. Because this look only becomes clear as the gecko matures, a young animal sold on its head shape is still a prediction instead of a finished picture.
About the Crowned gene
A crested gecko is called Crowned if its head grows unusually wide, making its length fall noticeably short of its width. Because it is a structural trait instead of a pattern or colour, you judge it on the grown animal in front of you and not on the proportions of a hatchling.
Appearance
The head of a Crowned gecko is notably wide in relation to its length. While some people claim the ratio is 1.3 times width to length, others say it is 1.5. Regardless, the head appears short and broad instead of long and narrow. This build is not clear on a hatchling. The wide, heavy head most buyers associate with Crowned only develops as the gecko reaches adult size.
Genetics
Crowned is polygenic, with several genes acting together instead of a single recessive or dominant one. There is no other name in use, no het in the genetic sense, no super form, and no allelic complex. Two names are used by sellers: Crowned and Pos Crowned. The second name applies to young stock where the head has not grown into the shape yet. No year or breeder is known for its origin.