8000 Years Of Environmental Evolution Of Barrier–Lagoon
Systems Emplaced In Coastal Embayments (Nw Iberia),
University of Nebraska - Lincoln
8000 Years Of Environmental Evolution Of Barrier–Lagoon Systems Emplaced In Coastal Embayments (Nw Iberia), Ronald Goble, Rita González-Villanueva, Roberto Bao
Papers in the Earth and Atmospheric Sciences
The rocky and indented coast of NW Iberia is characterized by the presence of highly valuable and vulnerable, small and shallow barrier– lagoon systems structurally controlled. The case study was selected to analyse barrier–lagoon evolution based on detailed sedimentary architecture, chronology, geochemical and biological proxies. The main objective is to test the hypothesis of structural control and the significance at regional scale of any highenergy event recorded. This work is also aimed at identifying general patterns and conceptualizing the formation and evolution of this type of coastal systems. The results allowed us to establish a conceptual model of Holocene evolution …
Cursorial Adaptations In The Forelimb Of The Giant Short-Faced Bear, Arctodus Simus, Revealed By Traditional And 3d Landmark Morphometrics,
East Tennessee State University
Cursorial Adaptations In The Forelimb Of The Giant Short-Faced Bear, Arctodus Simus, Revealed By Traditional And 3d Landmark Morphometrics
Electronic Theses and Dissertations
The paleobiology of the Pleistocene North American giant short-faced bear, Arctodus simus, has eluded paleontologists for decades. Its more gracile form has led past researchers to myriad intepretations of the locomotion and feeding ecology of this species. While earlier studies have focused on craniodental morphology and simple postcranial indices, it is forelimb morphology that represents a direct compromise between locomotor and foraging behavior. The study here uses traditional and 3D landmark morphometrics to more completely compare the 3-dimensional shape of the major forelimb elements and their muscle attachment sites between A. simus, extant ursids, and other carnivorans. Results …
The Ancestral Ursid, Hemicyon, In Nebraska,
University of Nebraska - Lincoln
The Ancestral Ursid, Hemicyon, In Nebraska
Bulletin of the University of Nebraska State Museum
During the summer of 1928, a University of Nebraska State Museum field party, composed of Dr. A. L. Lugn and the writer, made a collection of upper Miocene and lower Pliocene mammals in Brown and Cherry counties, Nebraska. This collection was sponsored and made possible by the generosity of the late Hon. Charles H. Morrill.
The Rise Of Fire: Fossil Charcoal In Late Devonian Marine Shales As An Indicator Of Expanding Terrestrial Ecosystems, Fire, And Atmospheric Change,
West Chester University
The Rise Of Fire: Fossil Charcoal In Late Devonian Marine Shales As An Indicator Of Expanding Terrestrial Ecosystems, Fire, And Atmospheric Change, Walt Cressler
Geology & Astronomy Faculty Publications
No abstract provided.
The Musk-Oxen Of Nebraska,
University of Nebraska - Lincoln
The Musk-Oxen Of Nebraska
Bulletin of the University of Nebraska State Museum
The remains of no less than eight fossil musk-oxen are already known in Nebraska, of which one is preserved in the Museum at Hastings, Nebraska, and seven in the State Museum at Lincoln. This is a large number to be recorded in anyone state. As late as 1891 authors wrote that but two examples of musk-oxen were known in the United States, one from Kentucky, and one from Arkansas, if, indeed, they be valid species. Now that pioneer days are well behind this commonwealth, and that there is a growing sentiment for exploration and proper display of the State's resources, …
Ediacaran Paleocommunity Structure, Body Size Evolution, And The Rise Of Complex Animals,
University of Nebraska - Lincoln
Ediacaran Paleocommunity Structure, Body Size Evolution, And The Rise Of Complex Animals, Matthew Craffey
Dissertations and Doctoral Documents from University of Nebraska-Lincoln, 2023–
The Ediacaran period (635-538ma) is a key interval in the evolution of life as it records the first macroscopic animal communities. Major extinction pulses appear to have altered the composition of the global marine biosphere between each sub-interval of the Ediacaran Period: the Avalon, White Sea, and Nama assemblage Zones. While considerable attention has been paid to the causes of these extinction pulses, less has been afforded to the consequences of Ediacaran biotic turnover for community organization and function. Moreover, it is unclear how body size - the defining trait of macrofauna - affected the transition between animal groups across …
Field Guide To Big Bone Lick, Kentucky: Birthplace Of American Vertebrate Paleontology,
University of Kentucky
Field Guide To Big Bone Lick, Kentucky: Birthplace Of American Vertebrate Paleontology, H Mcdonald, Robert Genheimer, Glenn Storrs, Eric Scott, Cameron Schwalbach
Special Publication--KGS
Big Bone Lick is the birthplace of vertebrate paleontology in the Western Hemisphere and has a long and celebrated history in the exploration of the American colonial frontier and of the early United States. Notable European scientists of the 18th century such as Buffon, Cuvier, and Hunter discussed the fossils found there. Prominent Americans of the time, such as Boone, Washington, Franklin, and Jefferson are also part of the site’s history. It is the type locality for several extinct late Pleistocene megafaunal mammals, most notably the iconic American Mastodon, who were attracted to the area by salt licks dictated by …
Paleoecology Of Late Pleistocene Megaherbivores: Stable Isotope Reconstruction Of Environment, Climate, And Response,
University of Nevada, Las Vegas
Paleoecology Of Late Pleistocene Megaherbivores: Stable Isotope Reconstruction Of Environment, Climate, And Response, Aubrey Bonde
UNLV Theses/Dissertations/Professional Papers/Capstones
Late Pleistocene megaherbivore communities of the Pacific and Mountain West states of California and Nevada are under-analyzed in regard to ecological function (diet, mobility, niche partitioning, and range of ecological tolerance). Stable isotope analysis is a powerful tool that is known to recover primary paleodiet and paleoenvironmental information from biogenic materials, such as enamel and dentin. This dissertation explores the use of carbon and oxygen stable isotopes in Late Pleistocene (40-10 Ka) megaherbivore teeth to gain a better understanding of inter- and intra-specific behavior and reconstruct Late Pleistocene ecosystems of California and Nevada. Radiocarbon dates exist for most of the …
Reptile Decomposition: An Actualistic Study Using Argentine Tegus (Salvator Merianae),
University of Tennessee, Knoxville
Reptile Decomposition: An Actualistic Study Using Argentine Tegus (Salvator Merianae), Hannah Maddox
Masters Theses
The study of decomposition and its effects on remains in both the modern and fossil record is a fundamental cornerstone for the fields of forensic anthropology, paleoanthropology, and zooarcheology. However, given the historical focus of these fields on mammalian decomposition, taphonomic studies of other vertebrate clades remain comparatively underexplored. Consequently, findings from mammalian studies are oftentimes uncritically applied to the taphonomic histories of non-mammalian taxa. Recent investigations into the seemingly-contradictory taphonomic histories of exceptionally preserved dinosaurian “mummies” have raised important questions regarding the influence of intrinsic biological differences between mammals and reptiles during decomposition. With the goal of replicating foundational …
Amphicyonidae,
University of Nebraska - Lincoln
Amphicyonidae, Robert Hunt
Mammalogy Papers: University of Nebraska State Museum
The Amphicyonidae occur in North America from late Eocene (~40 Ma) to early late Miocene (~9 Ma), a span of 31 million years. In the North American land mammal biochronology, this diverse family extends from the Duchesnean to the end of the Clarendonian and is especially well represented in the Miocene (~5-24 Ma). In the Old World, amphicyonids survive no longer than in North America: The last European records are Vallesian (Dinotheriensande, Mainz Basin, Germany, Kuss, 1965, Tobien, 1980; Vallés-Penédes Basin, Spain, Crusafont-Pairó and Kurten, 1976), and the last representative may occur at about 9 Ma at Kohfidisch, Austria (latest …
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