108 The Cretaceous-Paleogene (K-Pg) Boundary Interval: From Large-Scale Geological Events to Mass Extinction Mechanisms (Posters)

The Cretaceous-Paleogene boundary interval witnessed extreme geological events: the Chicxulub impact and Deccan Traps volcanism, and a biological catastrophe. New proxy-records, coupled with numerical modelling, unravel the mechanisms driving the environmental change and mass extinction.

Monday, 20 October 2025
8:00 AM - 5:30 PM
HBGCC, Hall 1

Participants

• Chair Pim Kaskes
• Chair James Witts
• Chair Courtney Jean Sprain

Presentations

• 8:00 AM
  The Cretaceous–Paleogene Extinction in Focus: Foraminiferal Dynamics, Morphogroups and Recovery Patterns in the Umbria-Marche Basin, Italy
  Syouma Hikmahtiar, KFUPM, Dhahran, Eastern Province and Michael Kaminski, KFUPM, Earth Sciences, Dhahran
  412000 (Technical Sessions)
• 8:00 AM
  Two Stages of Macroinvertebrate Recovery from the End-Cretaceous Mass Extinction at Brazos, TX U.S. Gulf Coastal Plain.
  Page Thibodeaux, San Jose State University, Mountain View, CA and Michael Toting, San Jose State University, San Jose, Ca and Dessire Valenzuela, San Jose State University, San Jose, CA and Rowan Lockwood, William & Mary, Williamsburg, VA and Corinne Myers, University of New Mexico, Earth and Planetary Sciences, Albuquerque, NM and Christopher Lowery, University of Texas, Institute for Geophysics, Austin, TX and Sierra Petersen, University of Michigan, Ann Arbor, MI and James Witts, Natural History Museum, London, LONDON and Carlie Pietsch, Geology Department, San Jose, CA
  413107 (Technical Sessions)
• 8:00 AM
  A Taxonomically and Ecologically Diverse Marine Vertebrate Assemblage at the end of the Cretaceous in Texas (USA)
  C. Nguyen, Austin College, Sherman, Texas and Thomas Stidham, Austin College, Sherman, TX
  413386 (Technical Sessions)
• 8:00 AM
  Preliminary Examination of the Dynamics of the Marine Vertebrate Extinction and Recovery from the Latest Cretaceous through the Early Paleocene in Eastern Texas (USA)
  Thomas Stidham, Austin College, Sherman, Texas and D. Kettler, Austin College, Sherman, Texas and Emma Garza, Austin College, Sherman, Texas and C. Nguyen, Austin College, Sherman, Texas
  413399 (Technical Sessions)
• 8:00 AM
  A Diverse Fish Otolith Assemblage from the Early Paleocene Wills Point Formation of Texas (USA) Documents a Diversifying Post-Extinction Bony Fish Fauna
  Emma Garza, Austin College, Sherman, Texas and Thomas Stidham, Austin College, Sherman, Texas
  413409 (Technical Sessions)
• 8:00 AM
  JAWS! Ammonite Kill Layer Preserved in a K–Pg Event Deposit in Kemper County, Mississippi USA
  Carlos Baez, Brooklyn College, Brooklyn, NY and Louise Palmer, Brooklyn College, Brooklyn, NY and Zoey Russo, Brooklyn College, Brooklyn, NY and Matthew Garb, Brooklyn College, Brooklyn, NY and Jone Naujokaityte, University of New Mexico, Albuquerque, NM and Corinne Myers, University of New Mexico, Earth and Planetary Sciences, Albuquerque, NM and George Phillips, Miss Dept Wildl, Fish & Pks, Museum of Natural Scie, Jackson, MS and Neil Landman, American Museum of Natl. His.Paleontology, New York, NY
  414410 (Technical Sessions)
• 8:00 AM
  Drynaria willdenowii (Polypodiaceae), A Fern from Volcanoes National Park, Rwanda as a Modern Analogue for the K-Pg "Fern Spike"
  Kathleen Pigg, Arizona State University, Tempe, Arizona and Viviane Giraneza, University of Rwanda, Kigali and Melanie DeVore, Georgia College and State University, Milledgeville, GA and Honorine Ihimbazwe, Dian Fossey Gorilla Fund, Kinigi
  414483 (Technical Sessions)
• 8:00 AM
  Salvage sedimentology and petrography across the K-Pg boundary at ephemeral exposures of the Owl Creek and Clayton formations associated with highway construction in northern Mississippi, USA
  Brian Platt, University of Mississippi, University, MS and Julie Retrum, University of Mississippi, University, MS and Maxwell Pizarro, University of Mississippi, University, MS
  414878 (Technical Sessions)
• 8:00 AM
  Sedimentological and Paleontological Analysis of a New Cretaceous- Paleogene (K-Pg) Section Near Cotton Plant, Union County, Mississippi, USA.
  Anastasia Rashkova, American Museum of Natural History, New York, NY and Amane Tajika, American Museum of Natural History, New York, NY and Matthew Garb, Brooklyn College, Staten Island, NY and Kei Sato, Kanazawa University, Ishikawa and George Phillips, Miss Dept Wildl, Fish & Pks, Museum of Natural Scie, Jackson, MS and Neil Landman, American Museum of Natl. His.Paleontology, New York, NY
  414921 (Technical Sessions)