TRIASSIC ROOTS FROM THE PETRIFIED FOREST NATIONAL PARK
نویسندگان
چکیده
منابع مشابه
A Revueltosaur-like Tooth from the Petrified Forest Formation (upper Triassic: Revueltian), Zion National Park
We describe an isolated archosauriform tooth from the Upper Triassic Painted Desert Member of the Petrified Forest Formation in Zion National Park in southwestern Utah. This tooth is relatively low (mesiodistally as long as baso-apically tall), bulbous and asymmetrical in occlusal view, and has denticles that are oblique to the tooth crown. The base of the tooth is also slightly expanded relati...
متن کاملAdvances in Late Triassic Vertebrate Paleontology Based on New Material from Petrified Forest National Park, Arizona
Recent collecting of vertebrate fossils in Petrifi ed Forest National Park as the result of an ongoing inventory of fossil localities has produced numerous important new specimens. These include phytosaur skulls and partial skeletons, aetosaur partial skeletons and isolated, but complete, osteoderms, as well as new dinosaur material that contributes new information to a currently poor dinosaur ...
متن کاملRevised Lithostratigraphy of the Sonsela Member (Chinle Formation, Upper Triassic) in the Southern Part of Petrified Forest National Park, Arizona
BACKGROUND Recent revisions to the Sonsela Member of the Chinle Formation in Petrified Forest National Park have presented a three-part lithostratigraphic model based on unconventional correlations of sandstone beds. As a vertebrate faunal transition is recorded within this stratigraphic interval, these correlations, and the purported existence of a depositional hiatus (the Tr-4 unconformity) a...
متن کاملPetrified Wood Survey of Land Adjacent to Petrified Forest National Park, AZ
An intensive survey was conducted on HNZ land, a subsidiary of Hunt Inc., which owns the mineral rights to land located adjacent to the Petrified Forest National Park, Arizona, United States. The purpose of the survey was to log the position and characteristics of petrified wood to better protect the fossils from thieves and to assess the value of Hunt lands. A monetary value was assigned to ea...
متن کاملThe Fossil Ferns of Petrified Forest National Park, Arizona, and Their Paleoclimatological Implications
Approximately one-fifth (ten species) of the plant megafossils in the Chinle Formation in Petrified Forest National Park, Arizona are the remains of ferns or fern-like leaves. Four of the species are assigned to living families, two are assigned to extinct families and the others are unassigned. The nearest living relatives and morphological features of these plants indicates that they lived u...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1963
ISSN: 0002-9122,1537-2197
DOI: 10.1002/j.1537-2197.1963.tb10649.x