Paleogene fossil birds
G Mayr, Mayr - 2009 - Springer
The first edition of this book was written at a time when comprehensive analyses of
molecular sequence data just began to provide a robust framework for the interrelationships …
molecular sequence data just began to provide a robust framework for the interrelationships …
Phylogenetic systematics of the North American fossil caninae (Carnivora: Canidae)
RH Tedford, X Wang, BE Taylor - Bulletin of the American Museum of …, 2009 - BioOne
The canid subfamily Caninae includes all the living canids and their most recent fossil
relatives. Their sister taxon is the Borophaginae with which they share an important …
relatives. Their sister taxon is the Borophaginae with which they share an important …
Large temperature drop across the Eocene–Oligocene transition in central North America
Abstract The Eocene–Oligocene transition towards a cool climate (∼ 33.5 million years ago)
was one of the most pronounced climate events during the Cenozoic era. The marine record …
was one of the most pronounced climate events during the Cenozoic era. The marine record …
Cenozoic paleoclimate on land in North America
GJ Retallack - The Journal of Geology, 2007 - journals.uchicago.edu
Paleotemperature and paleoprecipitation over the past 40 m. yr. can be inferred from the
degree of chemical weathering and depth of carbonate nodules in paleosols of Oregon …
degree of chemical weathering and depth of carbonate nodules in paleosols of Oregon …
The Chañares Formation: a window to a Middle Triassic tetrapod community
The Chañares Formation is known worldwide for its diverse and well-preserved Ladinian
non-marine tetrapod assemblage, including a wide variety of archosauriform reptiles …
non-marine tetrapod assemblage, including a wide variety of archosauriform reptiles …
Paleosols and ichnofossils of the White River Formation of Colorado: Insight into soil ecosystems of the North American Midcontinent during the Eocene-Oligocene …
DI Hembree, ST Hasiotis - Palaios, 2007 - pubs.geoscienceworld.org
Exposures of the upper Eocene to middle Oligocene White River Formation in northeastern
Colorado contain ichnofossil-rich paleosols in a meandering alluvial system. The …
Colorado contain ichnofossil-rich paleosols in a meandering alluvial system. The …
Effect of paleosol formation on rare earth element signatures in fossil bone
The rare earth element (REE) content of fossil bones was analyzed and compared with the
degree of ancient pedogenic development and depositional environments from several …
degree of ancient pedogenic development and depositional environments from several …
Paleopedology of the Chadron Formation of Northwestern Nebraska: implications for paleoclimatic change in the North American midcontinent across the Eocene …
DO Terry Jr - Palaeogeography, Palaeoclimatology, Palaeoecology, 2001 - Elsevier
The Big Cottonwood Creek Member is a newly recognized lithostratigraphic unit of the
Chadron Formation of northwestern Nebraska. I measured 23 superimposed paleosol …
Chadron Formation of northwestern Nebraska. I measured 23 superimposed paleosol …
The Lower Jurassic Hanson Formation of the Transantarctic Mountains: implications for the Antarctic sector of the Gondwana plate margin
DH Elliot, D Larsen, CM Fanning, TH Fleming… - Geological …, 2017 - cambridge.org
The Hanson Formation, Antarctica, consists of interbedded sandstones and tuffaceous rocks
of Early Jurassic age. The sandstones, pebbly to medium-grained, range between quartzo …
of Early Jurassic age. The sandstones, pebbly to medium-grained, range between quartzo …
Cenozoic Exhumation Across the High Plains of Southeastern Colorado from (U-Th)/He Thermochronology
SJ Kainz, LD Abbott, RM Flowers, A Olsson… - …, 2024 - pubs.geoscienceworld.org
Abstract Colorado's High Plains stand at anomalously high elevations (~ 1300–2100 m) for
their continental interior setting, but when and why this region became elevated is poorly …
their continental interior setting, but when and why this region became elevated is poorly …