John Taylor

John Taylor

Professor Emeritus


  • BS, IUP Geology
  • PhD, University of Missouri Geology

Courses Taught

GEOS 101/102 - Dynamic Earth
GEOS 151 - Age of Dinosaurs
GEOS 353 - Paleontology
GEOS 351 - Historical Geology
GEOS 352 - Sedimentation and Stratigraphy

Professional Interests

My primary interests are invertebrate fossils and the depositional environments that produced the rocks in which they are found. In particular, my specialty is trilobites of Cambrian and Ordovician age and their utility for correlation and paleogeographic reconstruction.

Current Projects

My long-term projects all include description of Upper Cambrian and Lower Ordovician faunas and rock units and refinement of the age-correlation possible between such widely separated field areas as the central Appalachians (PA/MD/VA), northern and central Rocky Mountains (MT/WY/CO), northern Mississippi Valley (MN/WI), southwestern U.S. (TX/OK/NM), the Great Basin (UT/NV) and Alaska. Specific topics include (1) the spatial and temporal distribution of microbial (bacterial reefs) and their specialized trilobite faunas, (2) the pattern of faunal turnover at extinction horizons in the Upper Cambrian and Lower Ordovician (both stage boundaries and biomere boundaries), and (3) recognition and interregional/intercontinental correlation of specific, geologically rapid submergence events that left their mark in the very thick limestone-dominated successions of North America.

Selected Publications

  • Taylor, J.F., Allen, T.J., Repetski, J.E., Strauss, J.V., and Irwin, S.J., 2015, Life on the edge in eastern Alaska: basal Ordovician (Tremadocian) platform-margin faunas of the Jones Ridge Limestone: in S.A. Leslie, D. Goldman, and R.C. Orndorff (eds.), The Ordovician exposed: Short papers and abstracts for the 12th International Symposium on the Ordovician System, p. 70-77.
  • Taylor, J.F., Repetski, J.E., Loch, J.D., and Leslie, S.A., 2012, Biostratigraphy and chronostratigraphy of the Cambrian-Ordovician Great American Carbonate Bank: in J.R. Derby, R.D. Fritz, S.A. Longacre, W.A. Morgan, and C.A. Sternbach (eds.), The Great American Carbonate Bank: The geology and economic resources of the Cambrian-Ordovician Sauk megasequence of Laurentia: AAPG Memoir 98, p. 15-35. Abstract
  • Strauss, J.V., Macdonald, F.A., Taylor, J.F., Repetski, J.E., and McClelland, W.C., 2013, Laurentian origin for the North Slope of Alaska, implications for the tectonic evolution of the Arctic: Lithosphere, v. 5, p. 477-482. doi: 10.1130/L284.1
  • Myrow, P.M., Taylor, J.F., Runkel, A.C. and Ripperdan, R.L., 2012, Mixed siliciclastic-carbonate upward-deepening cycles of the upper Cambrian inner detrital belt of Laurentia: Journal of Sedimentary Research, v. 82, p. 216-231. Abstract
  • Loch, J.D. and Taylor, J.F., 2011, New Symphysurinid Trilobites from the Cambrian-Ordovician Boundary Interval in the Western United States: Memoirs of the Association of Australasian Palaeontologists, v.42, p. 417-436.
  • Miller, J.F., Evans, K.R, Freeman, R.L., Ripperdan, R.L., and Taylor, J.F., 2011, Proposed Stratotype for the Base of the Lawsonian Stage (Cambrian Stage 10) at the First Appearance Datum of Eoconodontus notchpeakensis (Miller) in the House Range, Utah, USA: Bulletin of Geosciences (Czech Geological Survey), v. 86, p. 595-620.
  • Taylor, J.F., Brezinski, D.K., Repetski, J.E. and Welsh, N.M., 2009, The Adamstown Submergence Event: Faunal and Sedimentological Record of a Late Cambrian (Furongian) Transgression in the Appalachian Region, Memoirs of the Association of Australasian Palaeontologists, v. 37, p. 641-667.
  • Taylor, J.F., 2009, Who Needs (Lower Paleozoic) Biostratigraphy?, PALAIOS, v.24, p.413-415.
  • Runkel, A.C., Miller, J.F., McKay, R.M., Palmer, A.R., Taylor, J.F., 2007, High-Resolution Sequence Stratigraphy of Lower Paleozoic Sheet Sandstones in Central North America: The Role of Special Conditions of Cratonic Interiors in Development of Stratal Architecture: Geological Society of America Bulletin, v. 119, p. 860-881.
  • Taylor, J.F., 2006, History and Status of the Biomere Concept: In Patterson, J. and Laurie, J. (eds.), Cambrian Studies II: Memoirs of the Association of Australasian Palaeontologists 32, p. 247-265.
  • Pojeta J. Jr., Taylor, J.F., and Darrough, G., 2005, Matthevia (Polyplacophora) Invades the Ordovician: The First Recorded Post-Cambrian Occurrence: Journal of Paleontology, v. 79, p. 1021-1027.
  • Taylor, J.F., Myrow, P.M., Ripperdan, R.L., Loch, J.D., and Ethington, R.L., 2004, Paleoceano-Graphic Events and Faunal Crises Recorded in the Upper Cambrian and Lower Ordovician of West Texas and Southern New Mexico: In Nelson, E.P. and Erslev, E.A., (eds.), Field Trips in the Southern Rocky Mountains: Geological Society of America Field Guide 5, p. 169-185.
  • Loch, J. D., and J. F. Taylor, 2004, New Trilobite Taxa from Upper Cambrian Microbrial Reefs in the Central Appalachian: Journal of Paleontology, v. 78, p.591-602.
  • Myrow, P.M., Taylor, J.F., Miller, J.F., Ethington, R.E., Ripperdan, R.L., and Allen, J., 2003, Fallen Arches: Dispelling Myths Concerning Cambrian and Ordovician Paleogeography of the Rocky Mountain Region: Geological Society of America Bulletin, v. 115, p. 695-713.
  • Taylor, J.F., Loch, J.D., and Perfetta P.J., 1999, Trilobite Faunas from Upper Cambrian Microbial Reefs in the Central Appalachians: Journal of Paleontology, v. 73, p 326-336.

Field Trip Group Photo