Current Courses
202.001Evolution Of The Earth
287.002Independent Study - Geology
385.001Invertebrate Paleontology
385.002Invertebrate Paleontology
296.001Stratigraphy
202.002Evolution Of The Earth
287.006Independent Study - Geology
295.001Sedimentology
295.002Sedimentology
Teaching Interests & Areas
Teaching: Principles of Geology, Evolution of the Earth, Ocean Science, Sedimentology, Stratigraphy, Invertebrate Paleontology.
Research Interests & Areas
Research Interests: Paleoecology, paleobiography and systematic paleontology of Ordovician-Devonian brachiopods, conodonts, and molluscs (gastropods); high-resolution biostratigraphy using integrated brachiopod and conodont sequences for correlation; integrated sequence-event stratigraphy, chemostratigraphy and magnetostratigraphy of Devonian cratonic and continental platform deposits of North America; paleogeography of Devonian Luarussia and paleoceanography of the Devonian ocean.
Book, Authored
Hogencamp, N., Stolfus, B., & Day, J. The Devonian- Carboniferous Boundary in the Mississippi River Valley of Iowa, Illinois, and Missouri. Bradley Cramer, James Day, Ryan Clark (EDs), A Revised Conodont Zonation of the Tournaisian (Kinderhookian to Lower Osagean) and Implications for Stratigraphic Correlation in North America.. Iowa Geologcial Survey-Guidebook Series Guidebook 30.Guidebook 30 (2019): 1-75.
Conference Proceeding
Day, J., Whalen, M., De Vleeshouwer, D., & Claeys, P. Biostratigraphic calibration of high resolution magnetic susceptibility stratigraphy of the Late Frasnian (Late Devonian) Lime Creek Formation in the subtropical Iowa Basin of western Laurussia. Geological Society of America Abstracts with Programs 44.7 (2012): 83.
Day, J., Gouwy, S., & MacLeod, K. Lower-Middle Devonian (Pragian-Lower Givetian) conodont biostratigraphy, Middle Devonian sea level record and estimated conodont apatite δO18 sea surface temperature changes in the southern Illinois Basin, USA. Geological Society of America Abstracts with Programs 44.7 (2012): 124.
Day, J., & Witzke, B. Timing of Upper Devonian Marine Flooding Events and Episodes of Organic-Rich Sweetland Creek, Grassy Creek and Saverton Shale deposition in the Iowa and NW Illinois Basin. GSA Abstracts with Programs 44.5 (2012): 7.
Gouwy, S., Day, J., & MacLeod, K. Pragian to Lower Givetian Conodont Biostratigraphy and Conodont Apatite δ 18O. 4th International Geologica Belgica Meeting (2012)
Gouwy, S., Day, J., & MacLoed, K. Upper Emsian to Lower Givetian Conodont Biostratigraphy and Conodont Apatite δO18 Results from the Grand Tower and St. Laurent Formations: Southern Illinois Basin-Reelfoot Embayment. GSA Abstracts with Programs 44.5 (2012): 2.
Presentations
High Resolution Inte- grated Conodont and Carbonate Carbonate Carbon Isotope Chemostratigraphy of the Hangenburg Excursion from the H-28 and H-32 Cores, Burlington, Iowa.. National Meeting of the Geological Society of America. Geological Society of America. (2020)
A Revised Conodont Biozonation for the Kinderhookian (Lower Mississippian). Annual Meeting of the Geological Society of America. Geological Society of America. (2019)
Integrated Stratigraphy of the Middle Devonian Lake Church and Thiensville Formations, Western Michigan Basin, U.S.A.. 3rd International Congress on Stratigraphy (STRATI-2019). International Commission on Stratigraphy & UNESCO. (2019)
Integrated conodont, graptolite, and δ13C Bio-chemostratigraphy of the Silurian of the Illinois Basin: a complimentary approach. 3rd International Congress on Stratigraphy (STRATI-2019). International COmmission on Stratigraphy, UNESCO. (2019)
Late Devonian Mass Extinctions (Kellwasser Events) in Subtropical and Equatorial Laurussia (Central and Western North America). Department of Geology and Environmental Geosciences, Northern Illinois University - Graduate Colloquium - Lecture. Department of Geosciences, Northern Illinois University. (2019)
Upper Devonian (Upper Frasnian-Lower Famennian) Biostratigraphy and Kellwasser Extinction Signatures in 4 the Iowa Basin-Central North America (Western Subtropical Euramerica). 11th North American Paleontological Convention. Paleontological Society. (2019)
Vertebrate Microfossil and Brachiopod Records of the Late Devonian Mass Extinction. Earth Science Club of Northern Illinois. College of DuPage. (2019)
Clark, R.J., Stolfus, B.M., Cramer, B.D., Day, J., Witzke, B.J., and Tassier-Surine, S.A. REVISITING THE DEVONIAN-CARBONIFEROUS BOUNDARY INTERVAL IN THE U.S. MIDCONTINENT: TYPE KINDERHOOKIAN AREA OF ILLINOIS, MISSOURI, AND IOWA. Geological Society of America Abstracts with Programs. Vol. 49, No. 6 - doi: 10.1130/abs/2017AM-301523
LAYNG, Alexander P., DAY, James and TIERNEY CRAMER, Kate, USING LANDMARK ANALYSIS TO DETERMINE THE RELATIONSHIP BETWEEN SPINOCYRTIA SHELL MORPHOLOGY AND EUSTATIC SEA-LEVEL VARIATION IN THE DEVONIAN. Geological Society of America Abstracts with Programs. Vol. 49, No. 2 - doi: 10.1130/abs/2017NE-291025
MCGINN, Ezekiel, OVER, D. Jeffrey, KOSLOSKI, Mary Elizabeth and DAY, Jed. HIGH FRASNIAN CONODONTS FROM THE CANASERAGA SANDSTONE, JAVA GROUP, UPPER DEVONIAN, WESTERN NEW YORK. Geological Society of America Abstracts with Programs. Vol. 49, No. 2 - doi: 10.1130/abs/2017NE-290088
Grants & Contracts
Investigation of Sr Isopte Chemostratigraphy of Devonian and Carboniferous Conodont Skeletal Apatite. United State Geological Survey. Federal. (2019)
United States Geological Survey-investigation of strontium and trace and rare earth element geochemistry of conodont apatites from the Devonian of central and western North America.. United States Geological Survey-Federal Center. Federal. (2015)
United States Geological Survey-investigation of strontium and trace and rare earth element geochemistry of conodont apatites from the Devonian of central and western North America.. United States Geological Survey-Federal Center. Federal. (2014)
United States Geological Survey-investigation of strontium and trace and rare earth element geochemistry of conodont apatites from the Devonian of central and western North America.. United States Geological Survey-Federal Center. Federal. (2013)
United States Geological Survey-investigation of strontium and trace and rare earth element geochemistry of conodont apatites from the Devonian of central and western North America. Federal Center. Federal. (2012)