Also on last Fossil Friday, Ashley mentioned it would be really cool if ankylosaurs camouflaged themselves by putting plants on their back, like the terrestrial equivalent of decorator crabs, and wanted someone to draw that. I thought it sounded like a fun challenge. I love talking to scientists because they come up with so many great ideas that I never would have thought of!
I'm not sure ankylosaurs had the dexterity to pick something up and put it on their back, but I did think it plausible that they could roll in mud, get dirt caked on their backs, and then let plants grow in the dirt! I'd love to see something like this trundling around the desert.
The ankylosaur in question is Pinacosaurus from the Djadokhta Formation in Mongolia. The only flora found in the Djadokhta Formation so far are conifers, so I essentially had to come up with the shrubbery carte blanche. Aside from a few sapling conifers, I also populated this guy's back with a mix of plants currently found in the Gobi Desert, and shrubs found in the American West such as manzanita, sagebrush, and yes, good old tumbleweeds. I'm not saying these plant groups were definitely present in the Djadokhta, but the climactic conditions were similar enough that similar plants were probably present. It's a fudge, but a well-researched fudge.





