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GeoRef Categories
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Petrified Forest National Park
Multispectral satellite imaging improves detection of large individual fossils
Puercosuchus traverorum n. gen. n. sp.: a new malerisaurine azendohsaurid (Archosauromorpha: Allokotosauria) from two monodominant bonebeds in the Chinle Formation (Upper Triassic, Norian) of Arizona
BITE MARKS ON AN AETOSAUR (ARCHOSAURIA, SUCHIA) OSTEODERM: ASSESSING LATE TRIASSIC PREDATOR-PREY ECOLOGY THROUGH ICHNOLOGY AND TOOTH MORPHOLOGY
U-Pb zircon geochronology and depositional age models for the Upper Triassic Chinle Formation (Petrified Forest National Park, Arizona, USA): Implications for Late Triassic paleoecological and paleoenvironmental change
DISTINGUISHING REGURGITALITES AND COPROLITES: A CASE STUDY USING A TRIASSIC BROMALITE WITH SOFT TISSUE OF THE PSEUDOSUCHIAN ARCHOSAUR REVUELTOSAURUS
Modeling the dynamics of a Late Triassic vertebrate extinction: The Adamanian/Revueltian faunal turnover, Petrified Forest National Park, Arizona, USA
Accessibility and inclusion in the field: A field guide for central Arizona and Petrified Forest National Park
ABSTRACT This field trip focuses on accessible and inclusive design in field-based teaching and learning through a broad investigation of the geology of Arizona, followed by more detailed exercises that focus on the Upper Triassic stratigraphic sequences in Petrified Forest National Park (PEFO). The first day of the field trip will traverse the three physiographic provinces of Arizona, from fault-bounded, basement-cored uplifts and valleys of the Basin and Range in the greater Phoenix area, through the Transition Zone to the Mogollon Rim, and ending in Upper Triassic sedimentary rocks of the Colorado Plateau at Holbrook. The second day of the field trip will encompass more detailed, collaborative exercises in PEFO that utilize the expertise of both student and faculty participants in mixed-ability groups. The main priority of this accessible field experience is the development of an inclusive community of learning driven by paired student-faculty interactions, facilitated as needed by technology integration to mitigate barriers and foster engagement, communication, and collaboration across a spectrum of ability and content knowledge. Please note that the collection of archaeological artifacts, fossils, rocks, or other natural history objects without an active research and collection permit is illegal at Petrified Forest National Park. Please refrain from collecting samples or specimens of any kind from anywhere in the park.
Regional correlation of the Sonsela Member (Upper Triassic Chinle Formation) and detrital U-Pb zircon data from the Sonsela Sandstone bed near the Sonsela Buttes, northeastern Arizona, USA, support the presence of a distributive fluvial system
Norian vegetation history and related environmental changes: New data from the Chinle Formation, Petrified Forest National Park (Arizona, SW USA)
PRESERVING FOSSILS IN THE NATIONAL PARKS: A HISTORY
A juvenile Koskinonodon perfectus (Temnospondyli, Metoposauridae) from the Upper Triassic of Arizona and its implications for the taxonomy of North American metoposaurids
Collapse of the Late Triassic megamonsoon in western equatorial Pangea, present-day American Southwest
A Linkage Among Pangean Tectonism, Cyclic Alluviation, Climate Change, and Biologic Turnover In the Late Triassic: The Record From The Chinle Formation, Southwestern United States
DETERMINING FLOODPLAIN PLANT DISTRIBUTIONS AND POPULATIONS USING PALEOPEDOLOGY AND FOSSIL ROOT TRACES: UPPER TRIASSIC SONSELA MEMBER OF THE CHINLE FORMATION AT PETRIFIED FOREST NATIONAL PARK, ARIZONA
Sedimentological constraints on the evolution of the Cordilleran arc: New insights from the Sonsela Member, Upper Triassic Chinle Formation, Petrified Forest National Park (Arizona, USA)
Post–Permo-Triassic terrestrial vertebrate recovery: southwestern United States
Depositional and diagenetic controls on reservoir attributes within a fluvial outcrop analog: Upper Triassic Sonsela member of the Chinle Formation, Petrified Forest National Park, Arizona
VERTEBRATE FOSSIL PRESERVATION IN BLUE PALEOSOLS FROM THE PETRIFIED FOREST NATIONAL PARK, ARIZONA, WITH IMPLICATIONS FOR VERTEBRATE BIOSTRATIGRAPHY IN THE CHINLE FORMATION
High-precision U-Pb zircon geochronology of the Late Triassic Chinle Formation, Petrified Forest National Park (Arizona, USA): Temporal constraints on the early evolution of dinosaurs
Monitoring in situ paleontological resources
Abstract Paleontological resources (fossils) are the remains of life preserved in a geologic context. Fossils may consist of the physical remains of a biological organism such as a tooth, bone, shell, leaf, cone, seed, or wood. Evidence of biological activity may sometimes be preserved in rocks, hence tracks, traces, burrows, coprolites (fossil dung and feces), and nests represent other valuable types of paleontological resources. The fossil record reveals an extremely rich diversity of ancient organisms preserved in the Earth's strata (layers of rock). The fossil record of life on Earth spans nearly every period of geologic history from Precambrian bacteria, billions of years old, to more recent Pleistocene or Holocene cave fossils dating back only a few thousand years. Together, fossils from around the world yield significant scientific and educational information regarding the history of life on Earth. From the moment of death for an organism, a wide array of agents and forces work toward the breakdown and destruction of its physical remains. Raup and Stanley (1978) identify and describe biological, chemical, and mechanical variables associated with the destruction of biological remains. Only a very small percentage of all living organisms become part of the fossil record, and of those, an even smaller percentage have been discovered, collected and studied. The preservation of fossils and the associated biases in the fossil record are directly attributable to the organism's morphologic composition, rate of post-mortem burial, environment of deposition, diagenetic variables, tapho-nomic (after death) factors, and the post-depositional geologic history of