USAP-DC

{"dp_type": "Dataset", "free_text": "Paleontology"}

[{"awards": "0732625 Leventer, Amy", "bounds_geometry": ["POLYGON((-64.76 -65.75,-64.759 -65.75,-64.75800000000001 -65.75,-64.757 -65.75,-64.756 -65.75,-64.755 -65.75,-64.754 -65.75,-64.753 -65.75,-64.752 -65.75,-64.751 -65.75,-64.75 -65.75,-64.75 -65.751,-64.75 -65.752,-64.75 -65.753,-64.75 -65.754,-64.75 -65.755,-64.75 -65.756,-64.75 -65.757,-64.75 -65.75800000000001,-64.75 -65.759,-64.75 -65.76,-64.751 -65.76,-64.752 -65.76,-64.753 -65.76,-64.754 -65.76,-64.755 -65.76,-64.756 -65.76,-64.757 -65.76,-64.75800000000001 -65.76,-64.759 -65.76,-64.76 -65.76,-64.76 -65.759,-64.76 -65.75800000000001,-64.76 -65.757,-64.76 -65.756,-64.76 -65.755,-64.76 -65.754,-64.76 -65.753,-64.76 -65.752,-64.76 -65.751,-64.76 -65.75))"], "date_created": "Wed, 12 Nov 2025 00:00:00 GMT", "description": "The diatom data presented here are from marine sediment core samples collected on the 2010 LARISSA cruise \u2013 NBP1001. The location of the 2 cores, NBP1001 JKC55 and JPC127, is outer Barilari Bay, western Antarctic Peninsula. The cores were paired, a shorter jumbo kasten core and a longer jumbo piston core. These data were generated by Sunmi Jeong, under the direction of Amy Leventer (aleventer@colgate.edu), Department of Earth and Environmental Geosciences, Colgate University. All questions regarding the specifics of these data should be directed to Amy Leventer.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eName\tLatitude\tLongitude\tWater depth (m)\tCore length (m)\r\n\u003cbr/\u003eNBP1001 JKC55\t65\u00ba45.38\u00baS\t64\u00ba45.64\u00baW\t652\t4.26\r\n\u003cbr/\u003eNBP1001 JPC127\t65\u00ba45.36\u00baS\t64\u00ba45.64\u00baW\t653\t8.68\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eTwo published papers describe these cores and present the radiocarbon-based chronology:\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eChrist, A., Talaia-Murray, M., Domack, E., Leventer, A., Lavoie, C., Brachfeld, S., Yoo, K.-C., Gilbert, R., Jeong, S.-M., Wellner, J., 2014. Late Holocene glacial advance and ice shelf growth in Barilari Bay, Graham Land, West Antarctic Peninsula, Geological Society of America Bulletin, doi:10.1130/B31035.1.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eReilly, B.T., Natter, C.J., Brachfeld, S.A., 2016. Holocene glacial activity in Barilari Bay, west Antarctic Peninsula, tracked by magnetic mineral assemblages: Linking ice, ocean, and atmosphere, Geochem. Geophys. Geosyst., 17, 4553\u20134565, doi:10.1002/2016GC006627.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eIn the Micropaleontology lab at Colgate University, about 10-100 mg of sediment were weighed to the tenth of a mg and placed in 20 ml glass vials. Vials were placed on a warming tray set to 50 degrees C and 1 mL of hydrogen peroxide was added to each vial, followed by RH2O. This was done to oxidize organic material. Successive additions of 1 mL of hydrogen peroxide were done until samples had stopped reacting. RH2O was added as needed to avoid samples drying out. Slides then were made using the random settling and slide preparation methods in Scherer (1994).\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eDiatoms were observed with an Olympus BX50 microscope using the 100x/1.30 oil immersion objective and 10x eyepieces, for a total magnification of 1000x. For each slide, at least 400 diatom valves were counted along non-overlapping transects. Valves were only counted if \u003e50% complete, and diatoms were identified to the species level when possible, using identifications from Johansen and Fryxell (1985), Priddle and Fryxell (1985), Cremer et al. (2003), and Cefarelli et al. (2010). Unidentified diatoms were placed in either the unidentified centric diatom or unidentified pennate diatom category.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eCefarelli, A., Ferrario, M., Almandoz, G., Atencio, A., Akselman, R. \u0026 Vernet, M. (2010). Diversity of the diatom genus Fragilariopsis in the Argentine Sea and Antarctic waters: Morphology, distribution and abundance. Polar Biology, 33. 10.1007/s00300-010-0794-z.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eCremer, H., Roberts, D., McMinn, A., Gore, D. \u0026 Melles, M. (2003). The Holocene Diatom Flora of Marine Bays in the Windmill Islands, East Antarctica. Botanica Marina, 46(1), 82-106. https://doi.org/10.1515/BOT.2003.010\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eJohansen, Jeffrey R.; Fryxell, Greta A. (1985). The genus Thalassiosira (Bacillariophyceae): studies on species occurring south of the Antarctic Convergence Zone. Phycologia, 24 (2). 155-179. 10.2216/i0031-8884-24-2-155.1\r\n\u003cbr/\u003e\r\n\u003cbr/\u003ePriddle, J.; Fryxell, G. (1985). Handbook of the common plankton diatoms of the Southern Ocean: Centrales except the genus Thalassiosira. Cambridge, British Antarctic Survey, 159pp.\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eScherer, R.P. (1994) A new method for the determination of absolute abundance of diatoms and other silt-sized sedimentary particles. J Paleolimnology, 12, 171\u2013179. https://doi.org/10.1007/BF00678093\r\n\u003cbr/\u003e", "east": -64.75, "geometry": ["POINT(-64.755 -65.755)"], "keywords": "Antarctica; Antarctic Peninsula; Cryosphere; Holocene; Jumbo Piston Corer; Paleoclimate", "locations": "Antarctic Peninsula; Antarctica", "north": -65.75, "nsf_funding_programs": "Antarctic Integrated System Science", "persons": "Leventer, Amy", "project_titles": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans", "projects": [{"proj_uid": "p0000101", "repository": "USAP-DC", "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "LARISSA", "south": -65.76, "title": "Quantitative Diatom Assemblage Data from Barilari Bay, Antarctic Peninsula acquired during expedition NBP1001", "uid": "601995", "west": -64.76}, {"awards": "1543367 Shubin, Neil", "bounds_geometry": ["POLYGON((158.3 -78.43,158.359 -78.43,158.418 -78.43,158.477 -78.43,158.536 -78.43,158.595 -78.43,158.654 -78.43,158.713 -78.43,158.772 -78.43,158.831 -78.43,158.89 -78.43,158.89 -78.44200000000001,158.89 -78.45400000000001,158.89 -78.46600000000001,158.89 -78.47800000000001,158.89 -78.49000000000001,158.89 -78.502,158.89 -78.514,158.89 -78.526,158.89 -78.538,158.89 -78.55,158.831 -78.55,158.772 -78.55,158.713 -78.55,158.654 -78.55,158.595 -78.55,158.536 -78.55,158.477 -78.55,158.418 -78.55,158.359 -78.55,158.3 -78.55,158.3 -78.538,158.3 -78.526,158.3 -78.514,158.3 -78.502,158.3 -78.49000000000001,158.3 -78.47800000000001,158.3 -78.46600000000001,158.3 -78.45400000000001,158.3 -78.44200000000001,158.3 -78.43))"], "date_created": "Fri, 24 Jun 2022 00:00:00 GMT", "description": "List of locations and identified fossils from the Aztec Siltstone (Mid-Late Devonian) in the Transantarctic Mountains (2018-2019 field season).", "east": 158.89, "geometry": ["POINT(158.595 -78.49000000000001)"], "keywords": "Acanthodii; Antarctica; Chondrichthyes; Early Vertebrates; Osteolepiformes; Paleontology; Placodermi; Transantarctic Mountains; Vertebrate Evolution", "locations": "Transantarctic Mountains; Antarctica", "north": -78.43, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Daeschler, Ted", "project_titles": "Middle-Late Devonian Vertebrates of Antarctica", "projects": [{"proj_uid": "p0010340", "repository": "USAP-DC", "title": "Middle-Late Devonian Vertebrates of Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -78.55, "title": "Vertebrate Fossils from the Aztec Siltstone (Mid-Late Devonian) 2 (2018-2019)", "uid": "601584", "west": 158.3}, {"awards": "1543367 Shubin, Neil", "bounds_geometry": ["POLYGON((160.24 -77.53,160.286 -77.53,160.332 -77.53,160.37800000000001 -77.53,160.424 -77.53,160.47 -77.53,160.516 -77.53,160.56199999999998 -77.53,160.608 -77.53,160.654 -77.53,160.7 -77.53,160.7 -77.557,160.7 -77.584,160.7 -77.611,160.7 -77.638,160.7 -77.66499999999999,160.7 -77.692,160.7 -77.719,160.7 -77.746,160.7 -77.773,160.7 -77.8,160.654 -77.8,160.608 -77.8,160.56199999999998 -77.8,160.516 -77.8,160.47 -77.8,160.424 -77.8,160.37800000000001 -77.8,160.332 -77.8,160.286 -77.8,160.24 -77.8,160.24 -77.773,160.24 -77.746,160.24 -77.719,160.24 -77.692,160.24 -77.66499999999999,160.24 -77.638,160.24 -77.611,160.24 -77.584,160.24 -77.557,160.24 -77.53))"], "date_created": "Fri, 17 Jun 2022 00:00:00 GMT", "description": "List of locations and identified fossils from the Aztec Siltstone (Mid-Late Devonian) in the Transantarcitc Mountains", "east": 160.7, "geometry": ["POINT(160.47 -77.66499999999999)"], "keywords": "Acanthodii; Antarctica; Chondrichthyes; Early Vertebrates; Osteolepiformes; Paleontology; Placodermi; Transantarctic Mountains; Vertebrate Evolution", "locations": "Antarctica; Transantarctic Mountains", "north": -77.53, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Daeschler, Ted", "project_titles": "Middle-Late Devonian Vertebrates of Antarctica", "projects": [{"proj_uid": "p0010340", "repository": "USAP-DC", "title": "Middle-Late Devonian Vertebrates of Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.8, "title": "Vertebrate Fossils from the Aztec Siltstone (Mid-Late Devonian)", "uid": "601580", "west": 160.24}, {"awards": "1142052 MacPhee, Ross", "bounds_geometry": ["POINT(-56.62 -64.23)"], "date_created": "Mon, 13 Aug 2018 00:00:00 GMT", "description": "Fossils collected on Antarctic expeditions between 2008 and 2016 that have been accessioned into the collection of the Paleontology Division, AMNH ", "east": -56.62, "geometry": ["POINT(-56.62 -64.23)"], "keywords": "Antarctica; Biota; Penguin; Seymour Island; Vertebrates", "locations": "Antarctica; Seymour Island", "north": -64.23, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "MacPhee, Ross", "project_titles": "Collaborative Research: Late Cretaceous-Paleogene Vertebrates from Antarctica: Implications for Paleobiogeography, Paleoenvironment, and Extinction in Polar Gondwana", "projects": [{"proj_uid": "p0000380", "repository": "USAP-DC", "title": "Collaborative Research: Late Cretaceous-Paleogene Vertebrates from Antarctica: Implications for Paleobiogeography, Paleoenvironment, and Extinction in Polar Gondwana"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.23, "title": "2008-2016 AMNH accessioned vertebrate fossils from Seymour Island ", "uid": "601112", "west": -56.62}, {"awards": "0739575 Emslie, Steven", "bounds_geometry": ["POLYGON((-180 -60,-144 -60,-108 -60,-72 -60,-36 -60,0 -60,36 -60,72 -60,108 -60,144 -60,180 -60,180 -63,180 -66,180 -69,180 -72,180 -75,180 -78,180 -81,180 -84,180 -87,180 -90,144 -90,108 -90,72 -90,36 -90,0 -90,-36 -90,-72 -90,-108 -90,-144 -90,-180 -90,-180 -87,-180 -84,-180 -81,-180 -78,-180 -75,-180 -72,-180 -69,-180 -66,-180 -63,-180 -60))"], "date_created": "Thu, 01 Jan 2015 00:00:00 GMT", "description": "The research combines interdisciplinary study in geology, paleontology, and biology, using stable isotope and radiocarbon analyses, to examine how climate change and resource utilization have influenced population distribution, movement, and diet in penguins during the mid-to-late Holocene. Previous investigations have demonstrated that abandoned colonies contain well-preserved remains that can be used to examine differential responses of penguins to climate change in various sectors of Antarctica. As such, the research team will investigate abandoned and active pygoscelid penguin (Adelie, Chinstrap, and Gentoo) colonies in the Antarctic Peninsula and Ross Sea regions, and possibly Prydz Bay, in collaboration with Chinese scientists during four field seasons. Stable isotope analyses will be conducted on recovered penguin tissues and prey remains in guano to address hypotheses on penguin occupation history, population movement, and diet in relation to climate change since the late Pleistocene. The study will include one Ph.D., two Masters and 16 undergraduate students in advanced research over the project period. Students will be exposed to a variety of fields, the scientific method, and international scientific research. They will complete field and lab research for individual projects or Honor\u0027s theses for academic credit. The project also will include web-based outreach, lectures to middle school students, and the development of interactive exercises that highlight hypothesis-driven research and the ecology of Antarctica. Two undergraduate students in French and Spanish languages at UNCW will be hired to assist in translating the Web page postings for broader access to this information.\n", "east": 180.0, "geometry": ["POINT(0 -89.999)"], "keywords": "Antarctica; Antarctic Peninsula; Biota; Geochronology; Global; Penguin; Ross Sea; Sample/collection Description; Sample/Collection Description; Scotia Sea; Southern Ocean", "locations": "Ross Sea; Antarctica; Scotia Sea; Antarctic Peninsula; Global; Southern Ocean", "north": -60.0, "nsf_funding_programs": null, "persons": "Patterson, William; Polito, Michael; Emslie, Steven D.", "project_titles": "Stable Isotope Analyses of Pygoscelid Penguin remains from Active and Abandoned Colonies in Antarctica", "projects": [{"proj_uid": "p0000317", "repository": "USAP-DC", "title": "Stable Isotope Analyses of Pygoscelid Penguin remains from Active and Abandoned Colonies in Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -90.0, "title": "Stable Isotope Analyses of Pygoscelid Penguin remains from Active and Abandoned Colonies in Antarctica", "uid": "600145", "west": -180.0}, {"awards": "1244253 Hammer, William", "bounds_geometry": ["POLYGON((-165 -85,-164.5 -85,-164 -85,-163.5 -85,-163 -85,-162.5 -85,-162 -85,-161.5 -85,-161 -85,-160.5 -85,-160 -85,-160 -85.2,-160 -85.4,-160 -85.6,-160 -85.8,-160 -86,-160 -86.2,-160 -86.4,-160 -86.6,-160 -86.8,-160 -87,-160.5 -87,-161 -87,-161.5 -87,-162 -87,-162.5 -87,-163 -87,-163.5 -87,-164 -87,-164.5 -87,-165 -87,-165 -86.8,-165 -86.6,-165 -86.4,-165 -86.2,-165 -86,-165 -85.8,-165 -85.6,-165 -85.4,-165 -85.2,-165 -85))"], "date_created": "Wed, 01 Jan 2014 00:00:00 GMT", "description": "This proposal requests support for research on Early Jurassic vertebrate fauna of the Beardmore Glacier region of Antarctica. The project will support preparation and systematic and paleobiological research on four Antarctic dinosaurs, including two new species, collected in the Central Transantarctic Mountains. With the new material Cryolophosaurus will become one of the most complete Early Jurassic theropods known, and thus has the potential to become a keystone taxon for resolving the debated early evolutionary history of theropod dinosaurs, the group that gave rise to birds. Two new dinosaur specimens include a nearly complete articulated skeleton of a juvenile sauropodomorph, and the articulated hip region of another small individual. Both appear to be new taxa. The dinosaurs from the Hanson Formation represent some of the highest paleolatitude vertebrates known from the Jurassic. The PIs will generate CT datasets for Cryolophosaurus and the more complete new sauropodomorph species to mine for phylogenetic trait information, and to investigate their comparative neuroanatomy and feeding behavior. Histological datasets will be generated from multiple skeletal elements for all four Mt. Kirkpatrick taxa to understand patterns of growth in different clades of polar dinosaurs and compare them to relatives from lower paleolatitudes. This paleohistological study of a relatively diverse sample of sauropodomorph taxa from Antarctica may contribute to determining whether and how these dinosaurs responded to contemporary climatic extremes.\n\nThe PIs have established a successful undergraduate training program as part of previous research. Summer interns from Augustana are trained at the Field Museum in specimen preparation, curation, molding/casting, and histological sampling. They also participate in existing Field Museum REU programs, including a course on phylogenetic systematics. Four undergraduate internships and student research projects will be supported through this proposal. The PIs will develop a traveling exhibit on Antarctic Mesozoic paleontology that they estimate will be seen by 2.5 million people over the five-year tour.\n", "east": -160.0, "geometry": ["POINT(-162.5 -86)"], "keywords": "Antarctica; Beardmore Glacier; Biota; Dinosaurs; Fossil; Transantarctic Mountains", "locations": "Antarctica; Beardmore Glacier; Transantarctic Mountains", "north": -85.0, "nsf_funding_programs": null, "persons": "Hammer, William R.", "project_titles": "Collaborative Research: Continued Research on the Jurassic Vertebrate Fauna from the Beardmore Glacier Region of Antarctica", "projects": [{"proj_uid": "p0000083", "repository": "USAP-DC", "title": "Collaborative Research: Continued Research on the Jurassic Vertebrate Fauna from the Beardmore Glacier Region of Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -87.0, "title": "Continued Research on the Jurassic Vertebrate Fauna from the Beardmore Glacier Region of Antarctica", "uid": "600173", "west": -165.0}, {"awards": "0440954 Miller, Molly", "bounds_geometry": ["POLYGON((159 -76.61667,159.05 -76.61667,159.1 -76.61667,159.15 -76.61667,159.2 -76.61667,159.25 -76.61667,159.3 -76.61667,159.35 -76.61667,159.4 -76.61667,159.45 -76.61667,159.5 -76.61667,159.5 -76.630003,159.5 -76.643336,159.5 -76.656669,159.5 -76.670002,159.5 -76.683335,159.5 -76.696668,159.5 -76.710001,159.5 -76.723334,159.5 -76.736667,159.5 -76.75,159.45 -76.75,159.4 -76.75,159.35 -76.75,159.3 -76.75,159.25 -76.75,159.2 -76.75,159.15 -76.75,159.1 -76.75,159.05 -76.75,159 -76.75,159 -76.736667,159 -76.723334,159 -76.710001,159 -76.696668,159 -76.683335,159 -76.670002,159 -76.656669,159 -76.643336,159 -76.630003,159 -76.61667))"], "date_created": "Thu, 01 Jan 2009 00:00:00 GMT", "description": "This project studies fossils from two to three hundred million year old rocks in the Allan Hills area of Antarctica. Similar deposits from lower latitudes have been used to develop a model of Permo-Triassic climate, wherein melting of continental glaciers in the early Permian leads to the establishment of forests in a cold, wet climate. Conditions became warmer and dryer by the early Triassic, inhibiting plant growth until a moistening climate in the late Triassic allowed plant to flourish once again. This project will test and refine this model and investigate the general effects of climate change on landscapes and ecosystems using the unique exposures and well-preserved fossil and sediment records in the Allan Hills area. The area will be searched for fossil forests, vertebrate tracks and burrows, arthropod trackways, and subaqueously produced biogenic structures, which have been found in other areas of Antarctica. Finds will be integrated with previous paleobiologic studies to reconstruct and interpret ecosystems and their changes. Structures and rock types documenting the end phases of continental glaciation and other major episodic sedimentations will also be described and interpreted. This project contributes to understanding the: (1) evolution of terrestrial and freshwater ecosystems and how they were affected by the end-Permian extinction, (2) abundance and diversity of terrestrial and aquatic arthropods at high latitudes, (3) paleogeographic distribution and evolution of vertebrates and invertebrates as recorded by trace and body fossils; and (3) response of landscapes to changes in climate. In terms of broader impacts, this project will provide an outstanding introduction to field research for graduate and undergraduate students, and generate related opportunities for several undergraduates. It will also stimulate exchange of ideas among research and primarily undergraduate institutions. Novel outreach activities are also planned to convey Earth history to the general public, including a short film on the research process and products, and paintings by a professional scientific illustrator of Permo-Traissic landscapes and ecosystems.", "east": 159.5, "geometry": ["POINT(159.25 -76.683335)"], "keywords": "Allan Hills; Antarctica; Paleontology; Sample/collection Description; Sample/Collection Description; Solid Earth", "locations": "Antarctica; Allan Hills", "north": -76.61667, "nsf_funding_programs": null, "persons": "Miller, Molly", "project_titles": "Collaborative Research: Reconstructing the High Latitude Permian-Triassic: Life, Landscapes, and Climate Recorded in the Allan Hills, South Victoria Land, Antarctica", "projects": [{"proj_uid": "p0000207", "repository": "USAP-DC", "title": "Collaborative Research: Reconstructing the High Latitude Permian-Triassic: Life, Landscapes, and Climate Recorded in the Allan Hills, South Victoria Land, Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "Allan Hills", "south": -76.75, "title": "Reconstructing the High Latitude Permian-Triassic: Life, Landscapes, and Climate Recorded in the Allan Hills, South Victoria Land, Antarctica", "uid": "600045", "west": 159.0}]

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