Because the fossils were originally entombed in lake floor sediments, the researchers suggest that Pappochelys spent a lot of its time in the water and around the lakeshore — a lifestyle similar to that of today's marine iguanas, Sues says. (sciencemag.org)
However, instead of digging into the soil, they look for clues about our planet's climate history by studying coral reefs, digging into ocean and lake floor sediment and drilling deeply into glaciers and ice sheets. (giss.nasa.gov)
Could dislodge toxins that settled to the lake floor and have a disastrous environmental impact (www2.erie.gov)