This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/sed.12588 This article is protected by copyright. All rights reserved. PROF. JOSE I ESCAVY (Orcid ID : 0000-0002-2045-5745) Article type : Original Article Enterolithic folds in evaporites as microbially induced sedimentary structures: New model of formation and interpretation in the geological record JOSÉ I ESCAVY* and MARÍA J HERRERO† * Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Calle Profesor Aranguren, 28040, Madrid. (E-mail: ji.escavy@upm.es) †Departamento de Mineralogía y Petrología, Universidad Complutense de Madrid, Calle José Antonio Nováis, 28040, Madrid. Associate Editor – Stephen Lokier Short Title – Enterolithic folds in evaporites ABSTRACT Enterolithic structures are stratigraphically localized folds in gypsum beds found in certain saline evaporitic sedimentary units in a wide variety of basins. Different models of formation have been proposed, all related to inorganic processes. These models include: diagenetic transformation of