S. R. Westrop
Univ of Oklahoma, Norman, OK
Activity
2024
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TRILOBITE MINERALIZATION, DIACHRONOUS LOWEST OCCURRENCES OF TRILOBITES, AND A GLOBAL LOWER CAMBRIAN SUBDIVISION STANDARD
T239 Evolution of Marine Life in the Cambrian I: Biotic, Biogeochemical, and Stratigraphic ContextsWednesday, 25 September 20248:00 AM - 12:00 PM204C
2023
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PRECISE U-PB ZIRCON DATE SUCCESSION THROUGH FOSSILIFEROUS AVALONIAN LOWER–MIDDLE CAMBRIAN BOUNDARY INTERVAL AND EVALUATION OF THE MIAOLINGIAN AS A GLOBAL CAMBRIAN SERIES
T9 The Early Paleozoic I: Radiations, Extinctions, and EnvironmentSunday, 15 October 20238:00 AM - 12:00 PM304 / 305
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PALEOECOLOGY OF THE END-SKULLROCKIAN (TREMADOCIAN; EARLY ORDOVICIAN) TRILOBITE MASS EXTINCTION
2 D8. Paleontology: Diversity, Extinction, and Origination ISunday, 15 October 20238:00 AM - 12:00 PM306 / 307
2019
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“OLD FASHIONED” STRATIGRAPHY: THE TEST OF PALEOGEOGRAPHIC RECONSTRUCTIONS OF AVALONIA, “GANDERIA,” AND CADOMIA
T243 New Developments in the Appalachian-Caledonian-Variscan Orogen IWednesday, 25 September 20198:00 AM - 12:00 PMRoom 229B, North Building
2018
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INTEGRATING TRILOBITE BIOSTRATIGRAPHY AND CARBON ISOTOPE STRATIGRAPHY OF THE CAMBRIAN (PAIBIAN; STEPTOEAN) SPICE EVENT IN CENTRAL TEXAS AND WESTERN UTAH
272 D15. Paleontology, Taphonomy and BiostratigraphyWednesday, 7 November 20181:30 PM - 5:30 PMRoom 143-144
2016
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VARIATION IN TAPHONOMIC SIGNATURES BETWEEN BIOFACIES AND SYSTEMS TRACTS IN THE BROMIDE FORMATION, OKLAHOMA
162 Paleontology, Paleoecology/Taphonomy (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
2015
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10 M.Y. EVOLUTIONARY STASIS OF EARLIEST CAMBRIAN (TERRENEUVIAN) MOLLUSK-RICH FAUNAS AND CAMBRIAN EVOLUTIONARY RADIATION CORRELATIONS
3 Paleontology: Ancient Life in Deep Time: Temporal and Geographic Trends in Fossil DistributionsSunday, 1 November 20158:00 AM - 12:00 PMRoom 316
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SULFUR ISOTOPIC (δ34S) EVIDENCE FOR MARINE ANOXIA AND LINKS TO LOWER ORDOVICIAN (TREMADOCIAN) TRILOBITE EXTINCTIONS
T18 Co-Evolution of Life and Planet: Broad–Scale Controls on Biodiversity ISunday, 1 November 20158:00 AM - 12:00 PMRoom 314
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ANATOMY OF A CAMBRIAN TRILOBITE EXTINCTION EVENT, HONEY CREEK FORMATION, WICHITA MOUNTAINS REGION, OKLAHOMA
1 Paleontology and Archaeological GeologyThursday, 19 March 20158:00 AM - 12:00 PMExhibit Room 2
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MIDDLE CAMBRIAN (DRUMIAN) SOLENOPLEURID TRILOBITES FROM THE AVALON TERRANE, NEW BRUNSWICK AND NEWFOUNDLAND, CANADA
14 Undergraduate Research (Posters)Thursday, 19 March 20154:30 PM - 7:00 PMStarlight Terrace
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MIDDLE CAMBRIAN (DRUMIAN) CORYNEXOCHID TRILOBITES FROM THE COW HEAD GROUP, WESTERN NEWFOUNDLAND
5 Paleontology and Archaeological Geology (Posters)Thursday, 19 March 20159:00 AM - 4:00 PMStarlight Terrace
2014
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AN EARLY ORDOVICIAN MASS EXTINCTION AND THE PERSISTENCE OF ANOXIA
T257 The Ordovician Revolution: Co-Evolution of Climate and the BiosphereTuesday, 21 October 20141:00 PM - 5:00 PM215/216
2013
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INTEGRATION OF SEQUENCE STRATIGRAPHY AND TRILOBITE PALEOECOLOGICAL PATTERNS: AN EXAMPLE FROM THE UPPER ORDOVICIAN OF OKLAHOMA
126 Paleoecology and Taphonomy (Posters)Monday, 28 October 20139:00 AM - 6:30 PMHall D
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PHYLOGENETIC ANALYSIS OF LATE ORDOVICIAN NORTH AMERICAN BATHYURID TRILOBITE GENERA RAYMONDITES AND BATHYURUS
36 Phylogeny, Morphology and Evolution (Posters)Sunday, 27 October 20139:00 AM - 6:30 PMHall D
2012
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WHEN APPROACHES COLLIDE: RECONCILING SEQUENCE STRATIGRAPHY, CHEMOSTRATIGRAPHY AND BIOSTRATIGRAPHY IN THE CORRELATION OF THE KATIAN (UPPER ORDOVICIAN) REFERENCE SECTION, CENTRAL OKLAHOMA
260 Recent Advances in StratigraphyWednesday, 7 November 20121:30 PM - 5:30 PM213BC
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CYCLICITY AND DEPOSITIONAL SEQUENCES IN A MIXED SILICICLASTIC-CARBONATE UNIT: IMPLICATIONS FOR INTRABASINAL CORRELATION AND SUBAQUEOUS EROSION IN THE ORDOVICIAN OF OKLAHOMA
T271 Cyclicity and Hierarchy in the Clastic Stratigraphic RecordWednesday, 7 November 20121:30 PM - 5:30 PM203A
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SEQUENCE STRATIGRAPHY, SEDIMENTARY FACIES AND TRILOBITE BIOFACIES OF THE LATE ORDOVICIAN (LATE SANDBIAN-EARLY KATIAN) SUCCESSION OF MISSOURI
260 Recent Advances in StratigraphyWednesday, 7 November 20121:30 PM - 5:30 PM213BC
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TOWARDS A PHYLOGENETIC CLASSIFICATION OF TRILOBITA: SYNAPOMORPHIES AND STRUCTURE OF THE ORDER OLENIDA ADRAIN, 2011
T151 The Origins of Arthropod Diversity: Phylogenetic Insights from the Living and the Dead ITuesday, 6 November 20128:00 AM - 12:00 PM217BC
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SORTING THROUGH A PARAPHYLETIC GARBAGE CAN: A PHYLOGENETIC ANALYSIS OF MIDDLE AND UPPER ORDOVICIAN "ENCRINUOIDES" (TRILOBITA) SPECIES FROM LAURENTIAN NORTH AMERICA
89 Paleontology: Morphological Evolution & Morphology and Systematics (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
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POSITIVE CARBON ISOTOPE SHIFT IN THE MIDDLE TO LATE ORDOVICIAN: NO LINK WITH SEA LEVEL?
T92 Sigma Gamma Epsilon Undergraduate Research (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
2011
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COMPARATIVE STRATIGRAPHY OF THE UPPER ORDOVICIAN (SANDBIAN-KATIAN) SUCCESSIONS OF EASTERN MISSOURI AND CENTRAL TENNESSEE
173 Paleontology (Posters) III: Biogeography, Biostratigraphy, and TaphonomyTuesday, 11 October 20119:00 AM - 6:00 PMHall C
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LATE ORDOVICIAN TRILOBITE BIOFACIES OF EASTERN LAURENTIA: PALEOECOLOGICAL PATTERNS DURING FORELAND BASIN DEVELOPMENT
4 Paleontology I: Paleoecology and EnvironmentSunday, 9 October 20118:00 AM - 12:00 PMRoom 205AB
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TRILOBITE BIOFACIES AND LITHOFACIES OF THE UPPER ORDOVICIAN (SANDBIAN) LEBANON LIMESTONE, NASHVILLE DOME, TENNESSEE
27 Paleontology (Posters) I: Ecology and PhylogenySunday, 9 October 20119:00 AM - 6:00 PMHall C
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DEPOSITIONAL ENVIRONMENTS AND SHELL-BED GENESIS IN THE LATE ORDOVICIAN (KATIAN) VERULAM FORMATION AT GAMEBRIDGE QUARRY, ONTARIO
71 Paleontology (Posters)Tuesday, 22 March 20111:30 PM - 5:30 PMGrand Ballroom
2010
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ASSESSMENT OF LITHOLOGIC CONTROLS ON TRILOBITE PRESERVATION IN THE KIMMSWICK LIMESTONE, JEFFERSON COUNTY, MISSOURI
T270 Lagerstätten through Time: An Examination of Exceptional Preservational Pathways from the Terminal Proterozoic through Today (Posters)Wednesday, 3 November 20108:00 AM - 6:00 PMHall D
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NEW UPPER MARJUMAN AND LOWERMOST STEPTOEAN (UPPER CAMBRIAN) BIOSTRATIGRAPHIC SCHEME FOR THE EASTERN GREAT BASIN, NEVADA AND UTAH
275 Paleontology IX - Biostratigraphy and IchnologyWednesday, 3 November 20101:30 PM - 5:30 PMRoom 601
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A REVISED BIOSTRATIGRAPHY OF THE UPPER BLACKHILLSIAN STAGE (LOWER ORDOVICIAN, WESTERN LAURENTIA): NEW FAUNAS, NEW ZONES, AND HIGHLY RESOLVED REGIONAL CORRELATION
275 Paleontology IX - Biostratigraphy and IchnologyWednesday, 3 November 20101:30 PM - 5:30 PMRoom 601
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TRILOBITE BIOFACIES ALONG A CARBONATE MUD-MOUND TO BASIN GRADIENT IN SOUTHWESTERN VIRGINIA (ORDOVICIAN; SANDBIAN)
150 Paleontology VI - BiogeographyTuesday, 2 November 20108:00 AM - 12:00 PMRoom 605
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A REVISED TRILOBITE ZONATION FOR THE LOWER ORDOVICIAN OF WESTERN LAURENTIA
3 Mid-Continent PaleontologySunday, 11 April 20101:30 PM - 4:45 PMCooper Creek 2
2009
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TERMINAL SKULLROCKIAN AND TERMINAL STAIRSIAN (LOWER ORDOVICIAN) LAURENTIAN MASS EXTINCTIONS: THE LAST "BIOMERES"
T159 Volcanism, Impacts, Mass Extinctions, and Global Environmental Change IIITuesday, 20 October 20098:00 AM - 12:00 PMPortland Ballroom 253
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THE ONES THAT GOT AWAY: A RELICT, POST-EXTINCTION TRILOBITE FAUNA IN THE CAMBRIAN—ORDOVICIAN BOUNDARY INTERVAL OF NEW YORK
50 Paleontology: Extinction & TurnoverSunday, 18 October 20091:30 PM - 5:30 PMPortland Ballroom 256
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SEQUENCE STRATIGRAPHY AND FACIES ARCHITECTURE OF THE BROMIDE FORMATION (UPPER ORDOVICIAN; SANDBIAN) OF OKLAHOMA
36 Stratigraphy: A Global Perspective (Posters)Sunday, 18 October 20099:00 AM - 6:00 PMHall A
2007
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STRATIGRAPHIC CONTEXT OF A LATE CAMBRIAN EXTINCTION EVENT, TUNNEL CITY GROUP, UPPER MISSISSIPPI VALLEY
153 Paleontology VI: Stratigraphic and Systematic PaleontologyTuesday, 30 October 20071:30 PM - 5:30 PM
2006
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SEQUENCE STRATIGRAPHY AND CAMBRIAN TRILOBITE EXTINCTIONS
T79 Trilobite Paleobiology and Evolution: In Honor of Brian ChattertonMonday, 23 October 20068:00 AM - 12:00 PM
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ENVIRONMENTAL SIGNIFICANCE OF A GEOGRAPHICALLY AND STRATIGRAPHICALLY PERSISTENT LATE ORDOVICIAN TRILOBITE BIOFACIES
T79 Trilobite Paleobiology and Evolution: In Honor of Brian ChattertonMonday, 23 October 20068:00 AM - 12:00 PM
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CORRELATION OF CARBON ISOTOPE (δ13C) STRATIGRAPHY WITH SHIFTS IN LITHOFACIES AND TRILOBITE BIOFACIES, LATE ORDOVICIAN VIOLA GROUP, SOUTHERN OKLAHOMA
31 Current Applications of Geochemistry to Marine PaleoecologyTuesday, 21 March 20061:00 PM - 5:00 PM
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LOWER PALEOZOIC OF NORTHWEST GONDWANA—TERMINAL CAMBRIAN AND LOWEST ORDOVICIAN TIÑU FORMATION IN SOUTHERN MEXICO
13 Time Slices Across the Appalachians: Role of the Rheic Ocean in the Development of the Appalachian OrogenMonday, 20 March 20061:00 PM - 4:00 PM
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CRYPTIC MICROBIAL BUILDUPS AND HARDGROUNDS IN A LOWER ORDOVICIAN SHALLOW SUBTIDAL CARBONATE SUCCESSION, SOUTHERN HOUSE RANGE, UTAH
8 Sedimentology/Stratigraphy/Paleontology/PaleomagneticsTuesday, 7 March 20068:00 AM - 12:00 PM
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FACIES ANATOMY OF LATE CAMBRIAN (STEPTOEAN-SUNWAPTAN) SANDSTONES, TUNNEL CITY GROUP, UPPER MISSISSIPPI VALLEY
8 Sedimentology/Stratigraphy/Paleontology/PaleomagneticsTuesday, 7 March 20068:00 AM - 12:00 PM
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STRATIGRAPHY, SEDIMENTARY FACIES, AND PALYNOLOGY OF A TEMPORARY EXPOSURE OF THE SEMINOLE FORMATION (PENNSYLVANIAN, MISSOURIAN), TULSA CO., OKLAHOMA
7 Stratigraphy/Paleontology/Petrology/Volcanology (Posters)Monday, 6 March 20061:30 PM - 5:10 PM
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CAMBRIAN (STEPTOEAN-BASAL SUNWAPTAN) TRILOBITE BIOSTRATIGRAPHY OF THE HONEY CREEK FORMATION, WICHITA MOUNTAINS, OKLAHOMA
7 Stratigraphy/Paleontology/Petrology/Volcanology (Posters)Monday, 6 March 20061:30 PM - 5:10 PM
2005
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EVENNESS AND DIVERSITY OF LOWER PALEOZOIC TRILOBITE FAUNAS OF LAURENTIAN NORTH AMERICA
206 Paleontology VI: Partitioning Taxa—Patches, Gradients, and RegionsWednesday, 19 October 20058:00 AM - 12:00 PM
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FAUNAL DYNAMICS AND SYSTEMATICS OF DEPAUPERATE POST-EXTINCTION TRILOBITE FAUNAS, TERMINAL SKULLROCKIAN STAGE (LOWER ORDOVICIAN), GREAT BASIN
17 Innovations in Paleontological Methods II: Novel Insights Into Terrestrial and Marine Depositional Systems Through Taphonomy and IchnologyThursday, 19 May 20051:20 PM - 5:00 PM
2004
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RAPID TURNOVER OF TRILOBITE FAUNAS RELATED TO STRATIGRAPHIC CONDENSATION IN A LOWER ORDOVICIAN "BIOMERE"
227 Paleontology XII: The Ecologic Context of Taxonomic TurnoverWednesday, 10 November 20041:30 PM - 5:30 PM
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TAPHONOMIC CONTROL OF SHALLOW SUBTIDAL FOSSIL ABUNDANCE
196 Paleontology IX: Perspectives on DiversityWednesday, 10 November 20048:00 AM - 12:00 PM
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LITHOFACIES AND TRILOBITE BIOFACIES ON A LATE ORDOVICIAN CARBONATE RAMP: BROMIDE FORMATION, SOUTHERN OKLAHOMA
22 Paleontology (Posters) I: PaleoecologySunday, 7 November 20048:00 AM - 12:00 PM
2002
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PALEOECOLOGY OF TRILOBITES FROM THE VIOLA GROUP OF OKLAHOMA: IMPLICATIONS FOR CHANGES IN ORDOVICIAN MARINE COMMUNITIES
T203 Seafood Through Time—The Ecologic Context of the History of Life I: In Honor of Richard K. BambachWednesday, 30 October 20028:00 AM - 12:00 PM
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THE OLDEST CAMBRIAN TRILOBITES IN THE AVALON TERRANE, NEWFOUNDLAND: STRATIGRAPHIC, ENVIRONMENTAL AND PALEOECOLOGIC CONTEXT
31 Paleontology/Paleobotany III: Early LifeSunday, 27 October 20021:00 PM - 3:45 PM
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BIOSTRATIGRAPHIC AND PALEOECOLOGIC SIGNIFICANCE OF LATE CAMBRIAN (STEPTOEAN) TRILOBITE FAUNAS FROM THE COW HEAD GROUP, WESTERN NEWFOUNDLAND
2 Paleontology/Stratigraphy (Posters)Thursday, 11 April 20028:00 AM - 12:00 PM
2001
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EARLY ORDOVICIAN TRILOBITE DIVERSITY, TURNOVER RATES, AND MASS EXTINCTION: HIGH-RESOLUTION BIOSTRATIGRAPHY OF THE HOUSE FORMATION AND CORRELATIVES, GREAT BASIN
156 Marine Invertebrate Paleontology IIIThursday, 8 November 20018:00 AM - 12:00 PM
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STRATIGRAPHIC CONTEXT OF LATE CAMBRIAN TRILOBITE EXTINCTIONS: EVIDENCE FROM EASTERN NEVADA
T12 Stratigraphic PaleobiologyMonday, 5 November 20018:00 AM - 12:00 PM
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TRILOBITE PALEOECOLOGY AND TAPHONOMY OF THE STEPTOEAN (UPPER CAMBRIAN) DUNDERBERG FORMATION, CHERRY CREEK RANGE, NEVADA
15 PaleontologyTuesday, 24 April 20018:20 AM - 11:00 AM
Date Unknown
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TRILOBITE BIOSTRATIGRAPHY OF THE LATE ORDOVICIAN VIOLA GROUP IN SOUTH-CENTRAL OKLAHOMA
85 Paleontology/Paleobotany (Posters) I
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MARJUMAN-STEPTOEAN (CAMBRIAN) TRILOBITE BIOSTRATIGRAPHY OF THE COW HEAD GROUP, WESTERN NEWFOUNDLAND
160 Paleontology (Posters) II
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BIOSTRATIGRAPHY AND PALEOECOLOGY OF LATE CAMBRIAN (MARJUMAN) TRILOBITES FROM THE EMIGRANT SPRINGS FORMATION, SOUTHERN SCHELL CREEK RANGE, NEVADA
16 Paleontology (Posters)