7 The Campanian Crucible: A synthesis of vertebrate paleobiogeography and ecosystem dynamics in Laramidia (Posters)

Laramidia’s Campanian deposits reveal vertebrate diversification, geographic isolation, and provincialism, and its fossil record informs paleoecology and biogeography. This session synthesizes research on evolution, endemism, WIS dynamics, and underexplored geochronology across this Late Cretaceous landscape.

Monday, 18 May 2026
8:00 AM - 5:30 PM
Alvarado D/E

Participants

• Chair Heather Smith
• Chair Andrew Farke
• Chair Brent Adrian

Presentations

• 8:00 AM
  Prolonged Occurrences of Menefee Formation Mudstones above the Tsaya Canyon Tongue of the Cliff House Sandstone
  Ronni Chavez, Mesa, AZ and Ezekiel O’Callaghan, Northern Arizona University, Flagstaff, AZ and Brent Adrian, Arizona State University, Tempe, AZ and Heather Smith, Midwestern University, Glendale, AZ and Benjamin Mohler, University of Arizona, Tucson, AZ
  410490 (Technical Sessions)
• 8:00 AM
  New Vertebrate Localities with Toothmarked Bone from the Iles Formation (Campanian), Mesaverde Group of Colorado: Implications for Faunal Diversity and Paleoecology
  Lily Zugschwert, University of Colorado at Boulder, Boulder, CO and Jaelyn Eberle, University of Colorado at Boulder, Boulder, CO and John Foster, Utah Field House of Natural History State Park Museum, Vernal, UT and Steven Sroka, Utah Field House of Natural History State Park Museum, Vernal, UT and ReBecca Hunt-Foster, Dinosaur National Monument, Jensen, UT and Andrew Heckert, Appalachian State University, Boone, NC and Joel Crothers, Appalachian State University, Boone, NC
  410554 (Technical Sessions)
• 8:00 AM
  New Nodosaurid (Dinosauria: Thyreophora) Armor and Postcrania from the Upper Cretaceous Allison Member, Menefee Formation, New Mexico, USA
  Benjamin Mohler, The University of Arizona, Tucson, Arizona and Jessie Silverstein, Southwest Paleontological Society, Mesa, AZ and Harrison Brand, Southwest Paleontological Society, Mesa, AZ and Heather Smith, Midwestern University, Glendale, Arizona and Brenton Adrian, Arizona State University, Tempe, Arizona
  410583 (Technical Sessions)
• 8:00 AM
  First Occurrence of the Durophagous Mosasaur Globidens from New Mexico
  Benjamin Goode, Southwest Paleontological Society, Mesa, Arizona and Harrison Brand, Southwest Paleontological Society, Mesa, Arizona and Jared Cooke, Texas A&M, College Station, Texas and Benjamin Mohler, University of Arizona, Tucson, Arizona and Brent Adrian, Arizona State University, Tempe, Arizona and Heather Smith, Arizona State University, Tempe, Arizona
  410692 (Technical Sessions)