Kirk R. Johnson
- The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary
2010/03/04 by Peter Schulte, Laia Alegret, Ignacio Arenillas +38 · 1 voice · 112 citations
Earth and Planetary Sciences · #Geological and Geochemical Analysis #Paleontology and Stratigraphy of Fossils #Geology and Paleoclimatology Research
- Intercontinental dispersal of giant thermophilic ants across the Arctic during early Eocene hyperthermals
2011/05/04 by S. Bruce Archibald, Kirk R. Johnson, Rolf W. Mathewes +1 · 1 voice · 14 citations
Biochemistry, Genetics and Molecular Biology · Agricultural and Biological Sciences · #Insect and Arachnid Ecology and Behavior #Plant and animal studies #Fossil Insects in Amber
- A Tropical Rainforest in Colorado 1.4 Million Years After the Cretaceous-Tertiary Boundary
2002/06/28 by Kirk R. Johnson, Beth Ellis · 5 citations
Agricultural and Biological Sciences · Environmental Science · Biochemistry, Genetics and Molecular Biology · #Plant Diversity and Evolution #Ecology and Vegetation Dynamics Studies #Plant and Fungal Species Descriptions
- Response—Cretaceous Extinctions
2010/05/20 by Peter Schulte, Laia Alegret, Ignacio Arenillas +37 · 3 citations
Earth and Planetary Sciences · #Paleontology and Stratigraphy of Fossils #Geological and Geochemical Analysis #Geology and Paleoclimatology Research
- South American palaeobotany and the origins of neotropical rainforests
2004/10/26 by Robyn J. Burnham, Kirk R. Johnson · 2 citations
Agricultural and Biological Sciences · Environmental Science · #Plant Diversity and Evolution #Plant and animal studies #Ecology and Vegetation Dynamics Studies
- High precision U–Pb zircon geochronology for Cenomanian Dakota Formation floras in Utah
2014/11/05 by Richard S. Barclay, Matthew Rioux, Laura B. Meyer +3 · 1 citation
Earth and Planetary Sciences · #Geological formations and processes #Geology and Paleoclimatology Research #Paleontology and Stratigraphy of Fossils
- Oldest Known Eucalyptus Macrofossils Are from South America
2011/06/28 by María A. Gandolfo, Elizabeth J. Hermsen, María C. Zamaloa +5 · 1 citation
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Environmental Science · #Plant Diversity and Evolution #Plant and Fungal Species Descriptions #Ecology and Vegetation Dynamics Studies
- Masticatory stress, orbital orientation and the evolution of the primate postorbital bar
2000/05/01 by Matthew J. Ravosa, Vivian E. Noble, William L. Hylander +2 · 1 citation
Earth and Planetary Sciences · Environmental Science · Psychology · #Amphibian and Reptile Biology #Evolution and Paleontology Studies #Primate Behavior and Ecology