Two beds with unique fossil fish preservation occur within the predominantly evaporite-rich, fossil poor Angelo Member in the Green River Formation in Fossil Basin, Wyoming. These two beds, termed “Ghost Fish” beds, contain fossil fish that are two-dimensional carbonaceous compressions with no bone and detailed soft part preservation. These beds were measured and samples were collected from 8 quarries and 19 additional locations. Stratigraphic sections and fossil content were recorded at each quarry location. Analysis included XRD, stable isotope, XRF, TOC, and SEM analysis. Results were inputted into tables, graphs, and spatial maps to show trends, interpret the paleoenvironment, and examine the unique preservation. Interpretation of the results suggests freshwater entering the lake from the SW region of the study area during the UGF bed deposition. This research suggests that the unique style of preservation found in the Ghost Fish beds is the result of high alkalinity, salinity, and microbial mat activity.
","abstract_html":"<p>Two beds with unique fossil fish preservation occur within the predominantly evaporite-rich, fossil poor Angelo Member in the Green River Formation in Fossil Basin, Wyoming. These two beds, termed “Ghost Fish” beds, contain fossil fish that are two-dimensional carbonaceous compressions with no bone and detailed soft part preservation. These beds were measured and samples were collected from 8 quarries and 19 additional locations. Stratigraphic sections and fossil content were recorded at each quarry location. Analysis included XRD, stable isotope, XRF, TOC, and SEM analysis. Results were inputted into tables, graphs, and spatial maps to show trends, interpret the paleoenvironment, and examine the unique preservation. Interpretation of the results suggests freshwater entering the lake from the SW region of the study area during the UGF bed deposition. This research suggests that the unique style of preservation found in the Ghost Fish beds is the result of high alkalinity, salinity, and microbial mat activity.</p>","abstract_has_math":false,"creators":["Meacham, Amanda L."],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Basic Sciences","degree_department":null,"school":null,"contributors":["Nick, Kevin E.","Gaines, Robert R.","Leggitt, V. Leroy"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-03-01T08:00:00Z","date_published":"2017-03-01T08:00:00Z","updated_at":"2026-07-24T02:52:38Z","subjects":["Earth Sciences","Geology","Physical Sciences and Mathematics","Green River Formation; Fossils; Paleoecology; Marine animals - fossil","Ghost Fish beds; Microbial mat activity; Carbonaceous compressions; Fossil fish preservation"],"languages":["English"],"rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsrepository.llu.edu/etd/403","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Nick, Kevin E.","Gaines, Robert R.","Leggitt, V. Leroy"]},{"key":"dc:creator","label":"Author","values":["Meacham, Amanda L."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Basic Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Earth Sciences","Geology","Physical Sciences and Mathematics","Green River Formation; Fossils; Paleoecology; Marine animals - fossil","Ghost Fish beds; Microbial mat activity; Carbonaceous compressions; Fossil fish preservation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsrepository.llu.edu/etd/403"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Two beds with unique fossil fish preservation occur within the predominantly evaporite-rich, fossil poor Angelo Member in the Green River Formation in Fossil Basin, Wyoming. These two beds, termed “Ghost Fish” beds, contain fossil fish that are two-dimensional carbonaceous compressions with no bone and detailed soft part preservation. These beds were measured and samples were collected from 8 quarries and 19 additional locations. Stratigraphic sections and fossil content were recorded at each quarry location. Analysis included XRD, stable isotope, XRF, TOC, and SEM analysis. Results were inputted into tables, graphs, and spatial maps to show trends, interpret the paleoenvironment, and examine the unique preservation. Interpretation of the results suggests freshwater entering the lake from the SW region of the study area during the UGF bed deposition. This research suggests that the unique style of preservation found in the Ghost Fish beds is the result of high alkalinity, salinity, and microbial mat activity.
"]},{"key":"dc:title","label":"Title","values":["Unique Preservation of Fossil Ghost Fish in the Green River Formation"]}]}],"canonical_facts":{"dc:contributor":["Nick, Kevin E.","Gaines, Robert R.","Leggitt, V. Leroy"],"dc:creator":["Meacham, Amanda L."],"dc:description.abstract":["Two beds with unique fossil fish preservation occur within the predominantly evaporite-rich, fossil poor Angelo Member in the Green River Formation in Fossil Basin, Wyoming. These two beds, termed “Ghost Fish” beds, contain fossil fish that are two-dimensional carbonaceous compressions with no bone and detailed soft part preservation. These beds were measured and samples were collected from 8 quarries and 19 additional locations. Stratigraphic sections and fossil content were recorded at each quarry location. Analysis included XRD, stable isotope, XRF, TOC, and SEM analysis. Results were inputted into tables, graphs, and spatial maps to show trends, interpret the paleoenvironment, and examine the unique preservation. Interpretation of the results suggests freshwater entering the lake from the SW region of the study area during the UGF bed deposition. This research suggests that the unique style of preservation found in the Ghost Fish beds is the result of high alkalinity, salinity, and microbial mat activity.
"],"dc:identifier":["https://scholarsrepository.llu.edu/etd/403"],"dc:language":["English"],"dc:rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"dc:subject":["Earth Sciences","Geology","Physical Sciences and Mathematics","Green River Formation; Fossils; Paleoecology; Marine animals - fossil","Ghost Fish beds; Microbial mat activity; Carbonaceous compressions; Fossil fish preservation"],"dc:title":["Unique Preservation of Fossil Ghost Fish in the Green River Formation"],"thesis:degree_discipline":["Basic Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T02:52:38Z"}