Bali-like temperatures in Wyoming? Fossils reveal tropically hot North America 95 million years ago
Cretaceous oysters of the genus Pycnodonte investigated in the new study. These specimens were collected in San Miguel County, Colorado (top left), Kane County, Utah (top right), Big Horn County, Wyoming (bottom left), and Natrona County, Wyoming (bottom right), with a penny for scale. Photo credit: Matt Jones.
A new University of Michigan study that used fossil oyster shells as paleothermometers found the shallow sea that…