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Articles 1 - 9 of 9
Full-Text Articles in Paleobiology
A Description Of A Population Of Rugose Horn Corals In The Whitewater Formation (Richmondian, Ordovician) Camden, Oh, Campbell F. Bortel
A Description Of A Population Of Rugose Horn Corals In The Whitewater Formation (Richmondian, Ordovician) Camden, Oh, Campbell F. Bortel
The Research and Scholarship Symposium (2013-2019)
The Whitewater Formation, part of the upper Ordovician period, is predominately a fossiliferous wavy limestone unit interbedded with fossiliferous shales (State of Ohio, 2012). These shales contain a variety of marine invertebrates including various species of brachiopods, bryozoans, trilobites and an abundance of rugose horn corals. The purpose of this project was to collect and describe a population of rugose corals from several outcrops exposed in Camden, OH. These outcrops are exposed along OH-127 and OH-725 as road cuts. Over 500 corals were collected, sorted for complete specimens, and numerically categorized into a dataset. Each coral was linked to its …
Using Ct Scans To Describe An Allosaurus Skull (Dinosauria: Theropoda), Jordan C. Oldham
Using Ct Scans To Describe An Allosaurus Skull (Dinosauria: Theropoda), Jordan C. Oldham
The Research and Scholarship Symposium (2013-2019)
In 2001, an Allosaurus skull (CMP 279) was discovered in the Skull Creek Basin in Moffat County, Colorado. The skull is one of the most complete for the species and even contains the hyoid bones, which are usually not present. The skull is now permanently mounted, for display purposes, thus making the study of the individual bones difficult for producing a paleo-anatomical description. Computed Tomography (CT) scans of CMP 279 were created in 2017 and then made available for this study in 2019. CT scans are being used to investigate internal anatomy of skulls such as the endocranial cavity, sinuses, …
Global Deposits Of In Situ Upper Cambrian Microbialites: Implications For A Cohesive Model Of Origins, Ken P. Coulson
Global Deposits Of In Situ Upper Cambrian Microbialites: Implications For A Cohesive Model Of Origins, Ken P. Coulson
Proceedings of the International Conference on Creationism
The existence of in situ microbialites of biological origin located in upper Cambrian rocks in western Utah presents some problems for creationists as they seek to define the boundary that separates pre-Flood deposits from those that were deposited during the Flood event itself. These microbialites are extensive in nature, covering an area of at least 2600 km2, and are stacked one atop the other in multiple beds that span a thickness of at least 300 m, but could be as thick as several km (intercalated between wackestone wedges). Other microbialites found throughout similar upper Cambrian rocks in Nevada and California …
Historical Survey Of The Floating Mat Model For The Origin Of Carboniferous Coal Beds, Steven Arthur Austin, Roger W. Sanders
Historical Survey Of The Floating Mat Model For The Origin Of Carboniferous Coal Beds, Steven Arthur Austin, Roger W. Sanders
Proceedings of the International Conference on Creationism
For three hundred years geologists and paleobotanists have been attempting to describe the process that deposited plant material that formed Carboniferous coal beds. Autochthonous and allochthonous explanations in the early Nineteenth Century showed how scientific methodology becomes involved in coal interpretation. Autochthonous modelers used the paleobotany-strata-petrology-environment method to argue that coal is a terrestrial swamp deposit. Allochthonous modelers used the petrology-strata-paleobotany-environment method to describe coal as a subaqueous deposit. The two methodologies are best displayed at the end of the Nineteenth Century in the consensus autochthonists versus the French School allochthonists. Three depositional models have been offered for the origin …
Paradigms And Paleoartists: How Our Perception Of Dinosaurs Forms, Jordan C. Oldham
Paradigms And Paleoartists: How Our Perception Of Dinosaurs Forms, Jordan C. Oldham
The Research and Scholarship Symposium (2013-2019)
Thomas Kuhn in his famous work The Structure of Scientific Revolutions put forth his idea about how science changes. Kuhn thought that science changed by scientific revolutions brought on by an anomaly. After the anomaly, a crisis point would ensue as more scientists would research the anomaly. While in the process of research they would abandon the old paradigm in favor of one that would explain the anomaly. Not all anomalies create a crisis, but can rather result in a paradigm shift. These shifts occur within the old paradigm, and do not led to the formation of a new paradigm. …
Understanding Feathered Dinosaurs, Michael D. Sprague
Understanding Feathered Dinosaurs, Michael D. Sprague
The Research and Scholarship Symposium (2013-2019)
Young-earth creationists hold to separate creations of birds and land animals due to a literal interpretation of Genesis 1:20-25, which describes their creations on different days. As such, they oppose the conventional model of theropod-to-bird evolution. For many years, there were few Mesozoic birds known, namely Hesperornis and Icthyornis. Specimens such as Archaeopteryx, found in 1861, seemed to strengthen the argument for the proposed transition. However, even after John Ostrom reinvigorated the idea of dinosaur-to-bird evolution in 1960 with the discovery of Deinonychus, evidence of this transition was still sparse. In the 1990’s, exquisitely-preserved dinosaur fossils began to pour out …
Understanding Feathered Dinosaurs, Michael D. Sprague
Understanding Feathered Dinosaurs, Michael D. Sprague
The Research and Scholarship Symposium (2013-2019)
Young-earth creationists hold to separate creations of birds and land animals due to a literal interpretation of Genesis 1:20-25, which describes their creations on different days. As such, they oppose the conventional model of theropod-to-bird evolution. For many years, there were few Mesozoic birds known, namely Hesperornis and Icthyornis. Specimens such as Archaeopteryx, found in 1861, seemed to strengthen the argument for the proposed transition. However, even after John Ostrom reinvigorated the idea of dinosaur-to-bird evolution in 1960 with the discovery of Deinonychus, evidence of this transition was still sparse. In the 1990’s, exquisitely-preserved dinosaur fossils began …
Microstructures Produced By Hadrosaur Bones From Alaska And Wyoming, Mark P. Guilliams, Samantha J. Lefaive, Michael D. Sprague
Microstructures Produced By Hadrosaur Bones From Alaska And Wyoming, Mark P. Guilliams, Samantha J. Lefaive, Michael D. Sprague
The Research and Scholarship Symposium (2013-2019)
Since 2005 when Dr. Mary Schweitzer made the first discovery, microstructures with the appearance of “osteocytes” and “blood vessels” have been recovered from fossils of various localities, dating back as far as the Triassic. The majority of these finds have come from dense, cortical bone but recently have been discovered in cancellous bone. Since her initial discovery, Schweitzer has done a lot of work to verify that these microstructures are not biofilms, but instead are original organic tissue. This project was looking to get similar results to Schweitzer’s research and to find a simple test method for the initial discovery …
On The Aquatic Habits Of Sauropods – An Antiquated Theory In Need Of Revival?, Michael D. Sprague
On The Aquatic Habits Of Sauropods – An Antiquated Theory In Need Of Revival?, Michael D. Sprague
The Research and Scholarship Symposium (2013-2019)
When sauropods were first discovered, they were thought to have been restricted to life in the water due to their immense size. This image of sauropods was dismissed in the 1950’s when it was determined that the lungs would have been placed under massive amounts of pressure at these depths, rendering breathing nearly impossible (Kermack, 1951). However, these experiments failed to consider pneumaticity of sauropod vertebrae and were later dismissed. Sauropods possessed pneumatic features in all their presacral vertebrae, originally identified as weight-saving structures. These features kept the strength and integrity of the bone while dramatically reducing its weight. The …