Anyway, the spreadsheet is available here for anyone to use and will continue to be updated as I find more resources and new papers are published.
Next time on the PP Blog, a look at scientific accuracy in popular reconstructions of Dilophosaurus.
|Bears Ears National Monument Map - Department of the Interior|
|Map of the Bears Ears Area before monument designation. Geologic data from Utah Geological Survey database.|
|Moonrise over Comb Ridge, where my work has focused for the last several years.|
|Looking west from Bluff at Celebrate Cedar Mesa 2016|
|View inside the Bluff Community Center. Photo by ReBecca Hunt-Foster.|
|Speaking to the panel in Bluff. Photo by David Rankin.|
|Yours truly standing inside the White House Council on Environmental Quality office.|
The paleontological resources in the Bears Ears area are among the richest and most significant in the United States, and protection of this area will provide important opportunities for further archaeological and paleontological study. Many sites, such as Arch Canyon, are teeming with fossils, and research conducted in the Bears Ears area is revealing new insights into the transition of vertebrate life from reptiles to mammals and from sea to land. Numerous ray-finned fish fossils from the Permian Period have been discovered, along with other late Paleozoic Era fossils, including giant amphibians, synapsid reptiles, and important plant fossils. Fossilized traces of marine and aquatic creatures such as clams, crayfish, fish, and aquatic reptiles have been found in Indian Creek's Chinle Formation, dating to the Triassic Period, and phytosaur and dinosaur fossils from the same period have been found along Comb Ridge. Paleontologists have identified new species of plant-eating crocodile-like reptiles and mass graves of lumbering sauropods, along with metoposaurus, crocodiles, and other dinosaur fossils. Fossilized trackways of early tetrapods can be seen in the Valley of the Gods and in Indian Creek, where paleontologists have also discovered exceptional examples of fossilized ferns, horsetails, and cycads. The Chinle Formation and the Wingate, Kayenta, and Navajo Formations above it provide one of the best continuous rock records of the Triassic-Jurassic transition in the world, crucial to understanding how dinosaurs dominated terrestrial ecosystems and how our mammalian ancestors evolved. In Pleistocene Epoch sediments, scientists have found traces of mammoths, short-faced bears, ground sloths, primates, and camels.
- Proclamation establishing Bears Ears National Monument, December 28th, 2016We are continuing our research in the area with two aggressive excavations scheduled for 2017 in the Bears Ears along with continuing high school field camp work, and I am glad that the administration was willing to listen to the concerns of scientists from around the country about this area and the importance of paleontology to understanding its history. Looking forward, this proclamation serves as a framework for future paleontological work in the region. Nearby Grand Staircase-Escalante National Monument has similar language in its proclamation. This language has enabled a flowering of scientific research across the Grand Staircase. Virtually all of the new dinosaur species coming from that area (>95% of them) have been described since the Monument was declared and the wording of the proclamation has allowed that to happen. Horned dinosaurs, duck-billed dinosaurs, and young relatives of Tyrannosaurus rex have all been named in the last two decades. Hopefully, with paleontology being singled out and protected in Bears Ears National Monument, a similar explosion in our knowledge of the past will occur here.
|Portal to the Triassic in Bears Ears National Monument|
|Plate 17, Figure 1 from Gilmore (1920), showing the right side of the holotype of Ceratosaurus|
|Plate 17, Figure 2 from Gilmore (1920), showing the left side of the holotype of Ceratosaurus|