*Call for abstracts - GSA 2026 Cordilleran Section Meeting at Loreto, Baja California Sur, Mexico.* Dear community, We are pleased to invite you to submit an abstract to GSA 2026 Session *T27 “The western equatorial Pangea: Geological, geophysical, geochronological, and paleoecological insights on the youngest supercontinent assembly and breakup on Earth”, *which will take place during the 112th Annual Meeting at the* GSA Cordilleran Section*, to be held in *Loreto, Baja California Sur, Mexico, *from *April 21 to 24, 2026*. This session aims to bring together recent studies focused on Mexico, southwestern North America, and northwestern South America, addressing the assemblage, evolution, and breakup of the supercontinent Pangea from tectonic, stratigraphic, paleoecological, geophysical, geochronological, and paleogeographic perspectives. We warmly welcome contributions that bring together diverse perspectives to enrich our understanding of Western Equatorial Pangea. This session is designed to spark engaging conversations about the geological and biological forces that shaped Earth’s most recent supercontinent, while encouraging collaboration and international exchange. We look forward to sharing ideas and discoveries with you! *The abstract submission system is now open*, with a *deadline of January 13, 2026, at 11:59 p.m. Pacific Standard Time (PST).* More information: https://www.geosociety.org/GSA/Events/Section_Meetings/GSA/Sections/cd/2026mtg/home.aspx?hkey=88411fd7-3278-41be-aa78-f451032e17f3 We look forward to your contributions and hope to see you in Loreto, Baja California. Sincerely, *Session advocates: *Mildred Zepeda-Martínez, Bernardo Ignacio García-Amador, N. Betania Palacios-García, Nancy Riggs, Yuly Tatiana Valencia-Morales, Juan Moises Casas-Peña