Publications from DIG instructors!

Paige Wilson, UW graduate student and DIG instructor, along with DIG director Dr. Greg Wilson Mantilla and Dr. Caroline Strömberg publish their study on the floral diversity from a site in eastern Montana! They described Cretaceous plant fossils from the Hell Creek Formation and demonstrated that changes in floras of the western US were roughly occurring at the same time leading up to the Cretaceous-Paleogene mass extinction.

Example of gymnosperm plant fossils from the Hell Creek Formation (Modified from Figure 5 of Wilson et al., 2021)

Check out new research on multituberculates mammals from Egg Mountain—a dinosaur nesting site in western Montana— by graduate student and DIG instructor Luke Weaver and DIG director Dr. Greg Wilson Mantilla along with other colleagues! These fossils show the earliest evidence of mammal social behavior, such as group-nesting and burrowing behavior!

Fossils of Filikomys primaevus (multituberculate mammal) found at the Egg Mountain locality in western Montana (Modified from Extended Data Figure 1 of Weaver et al., 2021)

DIG instructors, Dr. Dave Grossnickle and Luke Weaver, and colleagues publish their study on examining the skeletons of different gliding mammals! They found that the different groups of gliding mammals all evolved longer limbs over time, but differences in the skeleton that contribute to the gliding apparatus are distinct and detectable among the groups.

Evolution of gliding behavior in mammals and their close relatives. Gliding evolved independently in these different mammal groups and there is evidence for gliding behavior in the fossil record as well! Extinct taxa are marked by the daggers. (Figure 1 of Grossnickle et al., 2020)

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