Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- <p>Little Coal River - West Virginia - Madison.</p> <p>Water - Pollution - West Virginia - Little Coal River.</p> <p>Habitat conservation - West Virginia - Little Coal River.</p> (1)
- <p>Plesiosauria.</p> (1)
- <p>Rhinichthys atratulus - West Virginia.</p> <p>Rhinichthys atratulus - West Virginia - Morphology.</p> <p>Rhinichthys atratulus - Ecology - West Virginia.</p> (1)
- Archosaur (1)
- Bioinformatics (1)
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
A Virtual Phytosaur Endocast And Its Implications For Sensory System Evolution In Archosaurs, Waymon Holloway
A Virtual Phytosaur Endocast And Its Implications For Sensory System Evolution In Archosaurs, Waymon Holloway
Theses, Dissertations and Capstones
Due to the overall morphological similarities between the Triassic archosaurs of the order Phytosauria and extant crocodilians, most studies have assumed that the two shared similar lifestyles. Many studies involving phytosaurs have focused on the external cranial morphology of various taxa. Internal cranial anatomy has received relatively little attention. As a result, comparative morphology studies of the braincases interior, or endocast, of phytosaurs are an area of potential exploration. Just as modern medical Xray computed tomography (CT) can be used to create three-dimensional images of internal structures of living subjects, such technology offers a non-invasive means of studying the internal …
Plesiosaur Body Shape And Its Impact On Hydrodynamic Properties, Courtney D. Richards
Plesiosaur Body Shape And Its Impact On Hydrodynamic Properties, Courtney D. Richards
Theses, Dissertations and Capstones
Despite the variability of cross-sectional body shape within Plesiosauria, its impact on plesiosaur buoyancy and stability has never been investigated. This study focused on Tatenectes, Cryptoclidus, and Muraenosaurus due to their variable body morphologies. Reconstructions were created based on measurements and photographs from fossil remains. The ability of computer models, based upon the reconstructions, to reach equilibrium after submersion, sink via lung deflation, and recover from a lateral roll was tested. For the computer models, Muraenosaurus was replaced with Thalassomedon, which had a similar morphology. Cryptoclidus and Thalassomedon recovered from submersion faster than Tatenectes. All models achieved negative buoyancy with …
The Little Coal River Improvement Project, West Virginia: An Initial Study Of Sediment, Bacteria And Benthic Macroinvertebrates, Emily Vargo
Theses, Dissertations and Capstones
The Little Coal River, located in southern West Virginia, has undergone many changes over the last few years in an effort to reverse the negative effects of various point source and non-point source pollutions. Marshall University, in cooperation with the West Virginia Department of Environmental Protection, Army Corp of Engineers, and the Coal River Group, has designed and implemented a plan for rehabilitation known as the Little Coal Improvement Project. Several improvement structures were strategically installed within the Little Coal River during the summer of 2007. The functions of these structures include sediment flushing and overall habitat improvement. Monitoring these …
Phylogenetic Analysis Of Blacknose Dace (Rhinichthys) In West Virginia Streams, Samantha Taylor
Phylogenetic Analysis Of Blacknose Dace (Rhinichthys) In West Virginia Streams, Samantha Taylor
Theses, Dissertations and Capstones
Blacknose dace (Rhinichthys) are one of the most common cyprinid fishes in eastern North America. They also have been a topic of debate for over 30 years because morphology-based systematics has failed to clearly define their taxa. Taxonomists classify the complex into two species and one subspecies: the eastern form, R. atratulus atratulus; and the western form R. obtusus obtusus, and southern form R. obtusus meleagris. This research uses the mitochondrial cytochrome b gene and genomic RAG 2 gene in a phylogenetic analysis to help clarify species relations according to differences between each current species. Maps have been created to …