“we here report that unlike other members of the Chamaeleonidae, C. calyptratus possesses an XX/XY sex chromosome system, revealing a novel transition in sex chromosome systems within this family.”…
https://epublications.marquette.edu/cgi/viewcontent.cgi?article=1604&context=bio_fac
https://epublications.marquette.edu/cgi/viewcontent.cgi?article=1604&context=bio_fac
