News from the Columbia Climate School

Tag: triassic period

  • Amid a Fossil Bonanza, Drilling Deep into Pre-Dinosaurian Rocks

    Amid a Fossil Bonanza, Drilling Deep into Pre-Dinosaurian Rocks

    On a high ridge in Arizona’s Petrified Forest National Park, paleontologist Paul Olsen sits on the fallen trunk of a 215-million-year-old tree, now turned to stone. The tree once loomed 70 or 80 feet above a riverine landscape teeming with fish, turtles, giant crocodilians and tiny, early species of dinosaurs.

  • Photo Essay: Unearthing the Lost World Below a Petrified Forest

    Photo Essay: Unearthing the Lost World Below a Petrified Forest

    In Arizona’s Petrified Forest National Park, researchers are scouring the fossil-rich surface and drilling deep into ancient rocks to learn what happened during the late Triassic, some 201 million to 235 million years ago.

Science for the Planet: In these short video explainers, discover how scientists and scholars across the Columbia Climate School are working to understand the effects of climate change and help solve the crisis.
  • Amid a Fossil Bonanza, Drilling Deep into Pre-Dinosaurian Rocks

    Amid a Fossil Bonanza, Drilling Deep into Pre-Dinosaurian Rocks

    On a high ridge in Arizona’s Petrified Forest National Park, paleontologist Paul Olsen sits on the fallen trunk of a 215-million-year-old tree, now turned to stone. The tree once loomed 70 or 80 feet above a riverine landscape teeming with fish, turtles, giant crocodilians and tiny, early species of dinosaurs.

  • Photo Essay: Unearthing the Lost World Below a Petrified Forest

    Photo Essay: Unearthing the Lost World Below a Petrified Forest

    In Arizona’s Petrified Forest National Park, researchers are scouring the fossil-rich surface and drilling deep into ancient rocks to learn what happened during the late Triassic, some 201 million to 235 million years ago.