Peris Cerdán, DavidLabandeira, Conrad C.Barrón, EduardoDelclòs Martínez, XavierRust, JesWang, Bo2020-05-302020-05-302020-02-012589-0042https://hdl.handle.net/2445/163337The Cretaceous fossil record of amber provides a variety of evidence that is essential for greater understanding of early pollination strategies. Here, we describe four pieces of ca. 99-million-year-old (early Cenomanian) Myanmar amber from Kachin containing four closely related genera of shortwinged flower beetles (Coleoptera: Kateretidae) associated with abundant pollen grains identified as three distinct palynomorphotypes of the gymnosperm Cycadopites and Praenymphaeapollenites cenomaniensis gen. and sp. nov., a form-taxon of pollen from a basal angiosperm lineage of water lilies (Nymphaeales: Nymphaeaceae).We demonstrate how a gymnosperm to angiosperm plant-host shift occurred during the mid-Cretaceous, from a generalist pollen-feeding family of beetles, which served as a driving mechanism for the subsequent success of flowering plants.23 p.application/pdfengcc-by (c) Peris, D. et al., 2020http://creativecommons.org/licenses/by/3.0/esAmbreColeòptersCretaciAmberBeetlesCretaceous Periodinfo:eu-repo/semantics/article7013172020-05-30info:eu-repo/semantics/openAccess32191877