title: A new libelluloid family from the Eocene Green River Formation (Colorado, USA) (Odonata, Anisoptera).
abstract: The new family Urolibellulidae is proposed for the new genus and species Urolibellula eocenica, based on a fossil dragonfly from the Eocene Green River Formation (USA). This new taxon is considered as the sister group of the extant Libellulidae. As the oldest libellulid dragonfly is dated from the Turonian, the Urolibellulidae should also be at least Late Cretaceous.
authors.affiliation: Department of Biology, Faculty of Sciences, University of Carthage, 7021, Zarzouna, Bizerte, Tunisia.; Email: asma_zairi@yahoo.fr.
authors.forename: Asma
authors.initials: A
authors.lastname: Zeiri
authors.affiliation: Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France; Email: anel@mnhn.fr.
authors.forename: Andre
authors.initials: A
authors.lastname: Nel
authors.affiliation: Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France; Email: unknown.
authors.forename: Romain
authors.initials: R
authors.lastname: Garrouste
mesh_terms: D000818:Animals; D003120:Colorado; D005580:Fossils; D063191:Odonata / Q000033:anatomy & histology* / Q000145:classification*; D013045:Species Specificity