Kirk Johnson | Academic Influence

Kirk Johnson 's AcademicInfluence.com Rankings

Kirk Johnson

Biology

#5668

World Rank

#8204

Historical Rank

#1919

USA Rank

Paleontology

#166

World Rank

#249

Historical Rank

#82

USA Rank

Botany

#431

World Rank

#1284

Historical Rank

#105

USA Rank

biology Degrees

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Biology

Kirk Johnson 's Degrees

Bachelors Geology Amherst College

Why Is Kirk Johnson Influential?

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According to Wikipedia, Kirk R. Johnson is an American paleontologist, author, curator, and museum administrator, and is currently serving as Sant Director of Smithsonian National Museum of Natural History. Early life and education Johnson was born in 1960 and grew up in Seattle, Washington. He attended Amherst College as an undergraduate, where he received a bachelor's degree in geology and fine arts. He joined Chi Psi Fraternity. He then attended the University of Pennsylvania, earning a master's degree in geology and paleobotany. He received his Ph.D. in geology and paleobotany from Yale University in 1989.

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Kirk Johnson 's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary (2010) (1123)
Sensitivity of leaf size and shape to climate: global patterns and paleoclimatic applications. (2011) (433)
Estimating net primary productivity from grassland biomass dynamics measurements (2002) (426)
Impact of the terminal Cretaceous event on plant–insect associations (2002) (260)
High Plant Diversity in Eocene South America: Evidence from Patagonia (2003) (259)
South American palaeobotany and the origins of neotropical rainforests. (2004) (235)
Correlated terrestrial and marine evidence for global climate changes before mass extinction at the Cretaceous–Paleogene boundary (2003) (221)
Eocene Plant Diversity at Laguna del Hunco and Río Pichileufú, Patagonia, Argentina (2005) (215)
Land plant extinction at the end of the Cretaceous: a quantitative analysis of the North Dakota megafloral record (2004) (145)
Decoupled Plant and Insect Diversity After the End-Cretaceous Extinction (2006) (143)
Timing the radiations of leaf beetles: hispines on gingers from latest cretaceous to recent. (2000) (142)
Megaflora of the Hell Creek and lower Fort Union Formations in the western Dakotas: Vegetational response to climate change, the Cretaceous-Tertiary boundary event, and rapid marine transgression (2002) (135)
A Paleocene lowland macroflora from Patagonia reveals significantly greater richness than North American analogs (2007) (129)
Insect herbivory, plant defense, and early Cenozoic climate change (2001) (129)
A Tropical Rainforest in Colorado 1.4 Million Years After the Cretaceous-Tertiary Boundary (2002) (129)
Habitat-related error in estimating temperatures from leaf margins in a humid tropical forest. (2001) (124)
Fossil leaf economics quantified: calibration, Eocene case study, and implications (2007) (113)
Oldest Known Eucalyptus Macrofossils Are from South America (2011) (110)
Carotenoid Modulation of Immune Function and Sexual Attractiveness in Zebra Finches (2003) (109)
Richness of plant-insect associations in Eocene Patagonia: a legacy for South American biodiversity. (2005) (106)
The Hell Creek Formation and the Cretaceous-Tertiary boundary in the northern Great Plains : an integrated continental record of the end of the Cretaceous (2002) (106)
High-resolution leaf-fossil record spanning the Cretaceous/Tertiary boundary (1989) (100)
Papuacedrus (Cupressaceae) in Eocene Patagonia: A new fossil link to Australasian rainforests. (2009) (95)
Strain in the Galago facial skull (2000) (91)
Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota (2002) (87)
Temporalis function in anthropoids and strepsirrhines: an EMG study. (2005) (87)
Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction (2019) (84)
Megafloral change across the Cretaceous/Tertiary boundary in the northern Great Plains and Rocky Mountains, U.S.A. (1990) (80)
Magnetostratigraphy and geochronology of the Hell Creek and basal Fort Union Formations of southwestern North Dakota and a recalibration of the age of the Cretaceous-Tertiary boundary (2002) (78)
First South American Agathis (Araucariaceae), Eocene of Patagonia. (2014) (78)
Whales and Walruses as Tillers of the Sea Floor (1987) (77)
Jaw-Muscle Function and the Origin of Primates (2007) (77)
Leaf-fossil evidence for extensive floral extinction at the Cretaceous-Tertiary boundary, North Dakota, USA (1992) (74)
Plants and the K-T Boundary (2008) (72)
Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescales (2016) (71)
Evidence for an in situ early Paleocene rainforest from Castle Rock, Colorado (2003) (70)
Intercontinental dispersal of giant thermophilic ants across the Arctic during early Eocene hyperthermals (2011) (70)
Preliminary assessment of insect herbivory across the Cretaceous-Tertiary boundary : Major extinction and minimum rebound (2002) (66)
Opinion: Specimen collections should have a much bigger role in infectious disease research and response (2016) (65)
Simultaneous Nitrogen and Phosphorus Deficiency in Natural Phytoplankton Assemblages: Theory, Empirical Evidence, and Implications for Lake Management (1989) (63)
Phase II jaw movements and masseter muscle activity during chewing in Papio anubis. (2006) (61)
Palynology and microstratigraphy of Cretaceous-Tertiary boundary sections in southwestern North Dakota (2002) (59)
Stratigraphy and megaflora of a K-T boundary section in the eastern Denver Basin, Colorado (2003) (59)
The Stratigraphy, Sedimentology, and Fossils of the Haughton Formation: A Post-Impact Crater-Fill, Devon Island, N.W.T., Canada (1988) (58)
Plants and the K-T Boundary by Douglas J. Nichols (2008) (53)
Novel Insect Leaf-Mining after the End-Cretaceous Extinction and the Demise of Cretaceous Leaf Miners, Great Plains, USA (2014) (51)
Masseter electromyography during chewing in ring-tailed lemurs (Lemur catta). (2006) (51)
Lithostratigraphy of the Hell Creek Formation in North Dakota (2002) (50)
Gray whale and walrus feeding excavation on the Bering Shelf, Alaska (1987) (49)
Side-Scan Sonar Assessment of Gray Whale Feeding in the Bering Sea (1984) (48)
Overview of the Late Cretaceous, early Paleocene, and early Eocene megafloras of the Denver Basin, Colorado (2003) (48)
Understanding Earth’s Deep Past: Lessons for Our Climate Future (2011) (48)
Hell Creek Formation: A 2001 synthesis (2002) (48)
Odonatan Endophytic Oviposition from the Eocene of Patagonia: The Ichnogenus Paleoovoidus and Implications for Behavioral Stasis (2009) (47)
Shaping Primate Evolution: Jaw adductor force and symphyseal fusion (2004) (46)
Magnetostratigraphy of Upper Cretaceous (Maastrichtian) to lower Eocene strata of the Denver Basin, Colorado (2003) (45)
Revision of the Proteaceae macrofossil record from Patagonia, Argentina (2007) (43)
Jaw-muscle electromyography during chewing in Belanger's treeshrews (Tupaia belangeri). (2005) (43)
First record of Todea (Osmundaceae) in South America, from the early Eocene paleorainforests of Laguna del Hunco (Patagonia, Argentina). (2013) (41)
Fission-Track Dating of Haughton Astrobleme and Included Biota, Devon Island, Canada (1987) (41)
Palynologically calibrated vertebrate record from North Dakota consistent with abrupt dinosaur extinction at the Cretaceous-Tertiary boundary (2001) (39)
Plant Ecological Strategies Shift Across the Cretaceous–Paleogene Boundary (2014) (39)
Cobbania corrugata gen. et comb. nov. (Araceae): a floating aquatic monocot from the Upper Cretaceous of western North America. (2007) (36)
Temporalis and masseter muscle function during incision in macaques and humans (1985) (36)
Synopsis of the stratigraphy and paleontology of the uppermost Cretaceous and lower Tertiary strata in the Denver Basin, Colorado (2003) (36)
Functional and evolutionary significance of the recruitment and firing patterns of the jaw adductors during chewing in Verreaux's sifaka (Propithecus verreauxi). (2011) (33)
COMPARISON OF LEAF SAMPLES FROM MAPPED TROPICAL AND TEMPERATE FORESTS: IMPLICATIONS FOR INTERPRETATIONS OF THE DIVERSITY OF FOSSIL ASSEMBLAGES (2013) (32)
Paleoecology of a late Paleocene (Tiffanian) megaflora from the northern Great Divide Basin, Wyoming (1997) (30)
Four-toed theropod footprints and a paleomagnetic age from the Whetstone Falls Member of the Harebell Formation (Upper Cretaceous : Maastrichtian) , northwestern Wyoming (1996) (29)
New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America (2007) (29)
FOSSIL FLORA AND STRATIGRAPHY OF THE FLORISSANT FORMATION, COLORADO (2011) (29)
Early Eocene 40Ar/39Ar Age for the Pampa de Jones plant, Frog, and Insect Biota (Huitrera Formation, Neuquén Province, Patagonia, Argentina) (2010) (28)
NPP Multi-Biome: NPP and Driver Data for Ecosystem Model-data Intercomparison, R2 (2013) (27)
Modern Tropical Forest Taphonomy: Does High Biodiversity Affect Paleoclimatic Interpretations? (2005) (26)
Geologic setting and stratigraphy of the Ziegler Reservoir fossil site, Snowmass Village, Colorado (2014) (26)
A preliminary assessment of insect herbivory across the Cretaceous/Tertiary boundary: extinction and minimal rebound (2002) (25)
Resolution of foraminiferal biotopes in Broken Bay, N.S.W. (1975) (21)
High precision U–Pb zircon geochronology for Cenomanian Dakota Formation floras in Utah (2015) (20)
Multiple Proxy Estimates of Atmospheric CO2 From an Early Paleocene Rainforest (2018) (20)
Cyclic characteristics of sediments in the Moon Island Beach Subgroup, Newcastle Coal Measures, New South Wales (1973) (19)
Early joint formation in sediments (1970) (18)
Biotopes of recent benthonic foraminifera in Pitt Water, broken Bay, N.S.W. (Australia) (1973) (18)
Bighorn Basin Coring Project (BBCP): A continental perspective on early Paleogene hyperthermals (2013) (18)
NPP Multi-Biome: Global Primary Production Data Initiative Products, R2 (2013) (18)
Extinctions at the antipodes (1993) (17)
Surrounded by science (2015) (16)
Functional Morphology and In Vivo Bone Strain Patterns in the Craniofacial Region of Primates: Beware of Biomechanical Stories about Fossil Bones (2002) (15)
Specialization of the Superficial Anterior Temporalis in Baboons for Masticationof Hard Foods (2008) (14)
Summary of the Snowmastodon Project Special Volume A high-elevation, multi-proxy biotic and environmental record of MIS 6–4 from the Ziegler Reservoir fossil site, Snowmass Village, Colorado, USA (2014) (14)
A review of long drop tubes as a supplement/alternative to space experiments (1984) (14)
Variation in Gross Chemical Composition and Related Physical Properties of Podiform Chromite in the Coolac District, N.S.W., Australia (1971) (12)
Evaluating Relationships among Floating Aquatic Monocots: A New Species of Cobbania (Araceae) from the Upper Maastrichtian of South Dakota (2016) (11)
Bacterial colonization of surfaces in flowing systems: methods and analysis (1994) (11)
Patterns of megafloral change across the Cretaceous-Tertiary boundary in the Northern Great Plains and Rocky Mountains (1988) (11)
Response—Cretaceous Extinctions (2010) (11)
Primate Origins and the Function of the Circumorbital Region: What's Load Got to Do with It? (2007) (10)
Marine Cretaceous-Tertiary boundary section in southwestern South Dakota. Comment and reply (2002) (10)
The Kiowa core, a continuous drill core through the Denver Basin bedrock aquifers at Kiowa, Elbert County, Colorado (2001) (9)
Analysis of Bacterial Spatial Patterns at the Initial Stage of Biofilm Formation (1995) (9)
Role of saturated and unsaturated zone in soil disposal of septic tank effluent (1988) (9)
West Bijou Site Cretaceous-Tertiary boundary, Denver Basin, Colorado (2004) (9)
An image dataset of cleared, x-rayed, and fossil leaves vetted to plant family for human and machine learning (2021) (9)
Constructing a time scale of biotic recovery across the Cretaceous–Paleogene boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A. (2019) (9)
Drilling of the Kiowa Core, Elbert County, Colorado (2002) (8)
Introduction to the Snowmastodon Project Special Volume The Snowmastodon Project (2014) (7)
The relation of the structural evolution of the Macouarie syncline to sedimentation in the moon island beach sub‐group, New South Wales (1974) (7)
:Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Life of the Past. (2007) (7)
Relationship of fluviodeltaic facies to coal deposition in the lower Fort Union formation (Palaeocene), south-western North Dakota (2009) (7)
Palaeobotany: Forests frozen in time (2007) (7)
Reconciling Rural Communities and Resource Conservation (1993) (7)
A complete Os excursion across a terrestrial Cretaceous–Paleogene boundary at the West Bijou Site, Colorado, with evidence for recent open system behavior (2014) (7)
Magnetostratigraphy of the Lebo and Tongue River Members of the Fort Union Formation (Paleocene) in the northeastern Powder River Basin, Montana (2011) (6)
Assessment of gray whale feeding grounds and sea floor interaction in the northeastern Bering Sea (1983) (6)
Common Plant Fossils from the Green River Formation at Douglas Pass, Colorado, and Bonanza, Utah (1995) (6)
Earth history along colorado's Front range: Salvaging geologic data in the suburbs and sharing it with the citizens (2007) (5)
NPP Grassland: NPP Estimates from Biomass Dynamics for 31 Sites, 1948-1994, R1 (2015) (5)
Store and share ancient rocks (2020) (5)
No Large Bias within Species between the Reconstructed Areas of Complete and Fragmented Fossil Leaves (2019) (4)
Wes Wehr dedication (2005) (4)
Devastation of Terrestrial Ecosystems at the K-T Boundary in North America: The First Calibrated Record of Plant and Animal Response to the Chixulub Impact (2000) (4)
First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads (2019) (4)
Primary mapping and stratigraphic data and field methods for the Snowmastodon Project (2012) (3)
Why Are There So Many Species of Herbivorous Insects in Tropical Rainforests (2006) (3)
One World Collection: The state of the world’s natural history collections (2019) (3)
Plants and the K–T Boundary: Eurasia (2008) (3)
Efficient sampling designs for microbial processes: a case study (1993) (3)
Honey Lake Project (1978) (3)
Geology of the Gualan and Southern Sierra de las Minas Quadrangles, Guatemala (1984) (2)
No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous—Paleogene Boundary (2022) (2)
Development Unit Configuration and Current Status of the MIP/MTERC Experiment (1999) (2)
Insect herbivory on Catula gettyi gen. et sp. nov. (Lauraceae) from the Kaiparowits Formation (Late Cretaceous, Utah, USA) (2022) (2)
A RECONNAISSANCE FISSION TRACK UPLIFT CHRONOLOGY FOR THE NORTHWEST MARGIN OF THE BIGHORN BASIN (1986) (2)
Tectono-thermal history by fission-track analysis of the Bighorn Basin and adjacent highlands, Montana-Wyoming (1990) (2)
The remnants of Gondwana (2008) (2)
Sulfate aerosol study. Final report (1978) (1)
Cobbania corrugata (Lesquereux) comb. nov. (Araceae): A floating aquatic aroid from the Upper Cretaceous of western North America (2007) (1)
THE SUPRAORBITAL REGION OF PRIMATES (1991) (1)
Improvements to critical path time for BWR refueling outages. Final report (1985) (1)
Guatemala's Motagua Valley: a neglected piece of the northern Caribbean puzzle (1985) (1)
Constructing a Timescale of Biotic Recovery across the Cretaceous–Paleogene Boundary, Corral Bluffs, Denver Basin, Colorado (2019) (1)
A FLOATING AQUATIC MONOCOT FROM THE UPPER CRETACEOUS OF WESTERN NORTH AMERICA 1 (2007) (1)
Development of a SATURN network for the south circular assessment study - a two tier approach (1991) (1)
A global approach for natural history museum collections (2023) (1)
The Multi-Stranded Career of Leo J. Hickey (2014) (1)
THREE - DIMENSIONAL INTERPOLATION (1978) (1)
Evaluation of scenarios for the K–T boundary event (2008) (0)
Cruisin' the Fossil Freeway: An Epoch Tale of a Scientist and an Artist on the Ultimate 5,000-Mile Paleo Road Trip (2007) (0)
Native Alaskans Study and Clean Up a Legacy of Pollution (2015) (0)
Barclay etal 2015 KResearch Dakota SuppText (2014) (0)
Plants and the K–T Boundary: Preface (2008) (0)
Road Log Contributors of the Marshall Lambert Symposium Field Trip (1993) (0)
Barclay etal 2015 KResearch Dakota SuppFigs1-8 600dpi (2014) (0)
Calibration of the Late Cretaceous to Paleocene geomagnetic polarity and astrochronological time scales: new results from high-precision U-Pb geochronology (2016) (0)
The Snowmastodon Project: cutting-edge science on the blade of a bulldozer (2015) (0)
Plants and the K–T Boundary: Using fossil plants to study the K–T boundary (2008) (0)
Steamflood expansion using slim-hole injectors (1995) (0)
IMAGINE A WORLD WITHOUT DINOSAURS: HOW NATURAL HISTORY MUSEUMS HAVE SHAPED PROGRESS IN PALEONTOLOGY (2016) (0)
Cave-analogue calcite growth in the laboratory: Calibrating stalagmite palaeoproxies (2008) (0)
WEN-1: first successful well in the Wendel-Amedee KGRA (1982) (0)
Brief history of K–T boundary paleobotany and palynology (2008) (0)
The American Indian Summer Institute in Earth System Science (AISESS) at UC Irvine: A Two-Week Residential Summer Program for High School Students (2012) (0)
Assessing Precipitation Isotope Variations during Atmospheric River Events to Reveal Dominant Atmospheric/Hydrologic Processes (2015) (0)
Geophysical and Geological Evidence for the Timing of Structural Movement in Southeastern Michigan: ABSTRACT (1994) (0)
Well inlet pressure and steam quality of Hatchobaru production wells (1982) (0)
Take a Prehistoric Journey at the Denver Museum of Natural History (1998) (0)
PRESENTATION OF THE HARRELL L. STRIMPLE AWARD OF THE PALEONTOLOGICAL SOCIETY TO WESLEY C. WEHR (2004) (0)
Geothermal heat utilization in a wood-fired electric power plant (1981) (0)
THE EARTHTIME INITIATIVE: ACCELERATING ADVANCES IN GEOCHRONOLOGY SINCE 2003 (2016) (0)
PRESENTATION OF THE HARRELL L. STRIMPLE AWARD TO DEAN PEARSON (2001) (0)
DINOSAUR SKELETON OCCURRENCE IN THE LATEST CRETACEOUS (LATE MAASTRICHTIAN) HELL CREEK FORMATION OF SOUTHWESTERN NORTH DAKOTA AND SOUTHEASTERN MONTANA (2016) (0)
THIS LAND : COLORADO NIGHT OF THE GIANT AMMONITES (1999) (0)
High-Precision U-Pb Geochronology and the Two Biggest Extinctions in Earth History (2010) (0)
What are the Dominant Drivers of Precipitation Change in NE Mexico? A 75,000 Year Precipitation Record Reconstructed through Speleothem Proxies (2019) (0)
Cultural Resource Reconnaissance Report Northpole Timber Sale (1982) (0)
Glufosinat-toleranter reis (1999) (0)
In his own words (2016) (0)
Cyclic characteristics of sediment in the Moon Island beach subgroup, Newcastle coal measures, New South Wales (1974) (0)
A Process-based Study of Speleothem 14 C Variability: Climatic Controls and Prospects for Speleothem-based Radiocarbon Calibration (2011) (0)
Peterson Timber Sale (1980) (0)
Nelson Timber Sale Archaeological Survey (1980) (0)
Cold Springs Timber Sale Cultural Report (1982) (0)
Kyle Timber Sale (1980) (0)
Ace Timber Sale (1980) (0)
Plants and the K–T Boundary: Williston Basin – the most complete K–T sections known (2008) (0)
Plants and the K–T Boundary: Resolution of the K–T boundary (2008) (0)
Applications of shear-wave technology in southern Michigan (1994) (0)
Night of the Giant Ammonites: Why did ancient, tire-sized shellfish congregate and then perish en masse? A paleontologist and an artist imagine a romantic scenario. (1999) (0)
USING GIS TO MAP, INTERPOLATE, AND VISUALIZE THE TERRESTRIAL CRETACEOUS/PALEOGENE EXTINCTION EVENT IN THE WILLISTON BASIN’S CEDAR CREEK ANTICLINE (2016) (0)
Correction: Insect herbivory on Catula gettyi gen. et sp. nov. (Lauraceae) from the Kaiparowits Formation (Late Cretaceous, Utah, USA) (2022) (0)
Plants and the K–T Boundary: Overview of latest Cretaceous and early Paleocene vegetation (2008) (0)
Introduction to special issues Paleontology and stratigraphy of Laramide strata in the Denver Basin (2002) (0)
Plants and the K–T Boundary: Introduction (2008) (0)
Awards and CitationsPresentation of the 2019 Harrell L. Strimple Award of the Paleontological Society to James L. Goedert (2020) (0)
Latest Cretaceous, Paleocene and Eocene floras from Patagonia: a critical piece of Gondwana's floral history comes into focus (2010) (0)
Assessment of the K–T boundary event (2008) (0)
Plants and the K–T Boundary: Other North American records (2008) (0)
Plants and the K–T Boundary: References (2008) (0)
Plants and the K–T Boundary: Floral effects of the K–T boundary event (2008) (0)
Refining the Geomagnetic Polarity Timescale: High-precision U-Pb geochronology from Late Cretaceous of US Western Interior and NE China (2017) (0)
THE GEOLOGY AND PALEOBOTANY OF THE HELL CREEK AND LOWER FORT UNION FORMATIONS IN SLOPE AND BOWMAN COUNTIES, NORTH DAKOTA (1993) (0)
DIGITIZATION OF MUSEUM COLLECTIONS AND THE FUTURE OF NATURAL HISTORY SCIENCE (2017) (0)
“Hungry Insect Herbivores during the Paleocene-Eocene Thermal Maximum in the Bighorn Basin, Wyoming, USA.” (2007) (0)
ABSTRACT: CONTRIBUTIONS TO THE MARSHALL LAMBERT SYMPOSIUM THE LATE CRETACEOUS (MAASTRICHTIAN) FLORA OF THE HELL CREEK FORMATION IN SOUTHWESTERN NORTH DAKOTA (1993) (0)

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