7 dossier(s) trouvé(s) portant l’étiquette "biological evolution" (les projets pluriannuels sont regroupés):
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A unique fossil assemblage from the Devonian of the Northwest Territories: A search for evolutionary missing links in the rise of fish
chercheur principal: Miyashita, Tetsuto
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No. 5549. Through this field project, the hope is to accomplish two goals: 1) to fill in a major gap in, and transform knowledge of early vertebrate evolution through the analysis of new fossils from the Anderson River locality, which represent a poorly known interval of the geological time; and 2) to establish a line of publi...


Late Cretaceous Marine Fauna and Paleoenvironment at Lac des Bois, NT
chercheur principal: Cumbaa, Stephen L
Année(s) de permis: 2010 2008 1997 1995
Résumé: To discover fossil bones and teeth of new species of ancient fishes, and remains of other animals that shared the shallow waters of the Western Interior Seaway with them. This seaway covered the middle of North America, from the NWT to the Gulf of Mexico. The researchers are trying to learn more about the environment of this ancient seaway, and why it was a "hot spot" for fish evolution. The ...


Jurassic and Cretaceous ichthyosaurs diversity in Northern Canada
chercheur principal: Maxwell, Erin E
Année(s) de permis: 2009 2008
Résumé: This licence is being issued for the scientific research application no. 1011. The goals of this research are to 1) collect and identify invertebrate fossils to correctly date the rocks the historic marine reptile fossils were collected from; and 2) to collect and identify any new vertebrate fossils found, in order to improve our knowledge of the diversity and evolution of Mesozoic marine repti...


New ischnacanthid acanthodians from the Lower Devonian of the Mackenzie Mountains, NT, Canada
chercheur principal: Hermus, Chelsea
Année(s) de permis: 2002
Résumé: The main objective of the project is to collect fossils of two specific groups of early fishes (acanthodians and heterostracans) to supplement specimens already collected for research projects at the University of Alberta. The field party plans to journe...


Role of Climate and Sea Change on Early Cambrian Evolution
chercheur principal: Pope, Michael
Année(s) de permis: 2003 2002 2001
Résumé: The research team will fly to Norman Wells by commercial airline, and then travel to the field by helicopter or Twin Otter. Travel in the field will be by canoe, or on foot. Field camps will be low impact, and will be occupied for less than 14 days. All human waste will be buried, and all non-burnable garbage will be packed out. The research team will measure, describe and sample the Early Camb...


Distribution of Late (Frasnian) Devonian Crinoids in the Hay River and Mackenzie River Regions of the Northwest Territories, Canada
chercheur principal: McIntosh, George
Année(s) de permis: 2000
Résumé: This research involves how groups of marine invertebrate fossils, crinoids evolved over a 6 million year interval designated as the Frasnian Stage. The researcher will study the rock exposures along the Mackenzie Highway between Hay River/Enterprise and Fort Simpson. The fossils to be collected rarely exceed 3 cm and collecting will be restricted to weathered surfaces composed of loose material. ...


Collection of Silurian fishes and trilobites and articulated remains of Devonian chondrichthyans and other fishes from the Mackenzie Mountains, N.W.T.
chercheur principal: Wilson, Mark V.H.
Année(s) de permis: 2013 1998 1996 1990
Résumé: The objectives of the research are 1) to collect remains of Silurian and Devonian fishes, and 2) to collect remains of Silurian trilobites. Activities are limited to travel, residence at camp locations and collection of fossils. Helicopters will be used to access camp sites. We plan to land at Avalanche Lake on July 15, spending 6 days collecting fossils at Avalanche Lake, followed by one day of t...


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