A New Tortoise, Genus Gopherus, From North-central Mexico

In the midst of a comprehensive review of the desert tortoise genus, researchers uncovered a population in north‑central Mexico that did not fit any known species. Detailed field notes and museum specimens collected over the early twentieth century reveal a distinct set of anatomical traits, prompting the formal description of a new taxon. The paper walks listeners through the careful process of comparing shells, skulls, and limb scales to establish its uniqueness.

The newly named Gopherus flavomarginatus stands out with a flat‑topped, flared carapace whose pale yellow background is edged by striking dark margins. Its skull is unusually wide, and the limbs bear rows of yellowish scales tipped with black, giving the animal a subtly patterned appearance. Beyond the morphological portrait, the work discusses the species’ geographic range, historical records, and hints at how its hatchlings might differ in coloration from their adult counterparts.