Jura ikupériodhe utama sajeroningskala wektu géologi kang dumadi watara 199,6 ± 0,6 tekan 145,4 ± 4,0 yuta taun kapungkur, sawisé périodheTrias lan ndhisiki périodheKapur.Lapisan batuan kang awèh ciri awal lan akir périodhe iki kaidhèntifikasi kanthi becik, nanging wektu pasé ora bisa dipesthèkaké watara 5 nganti 10 yuta taun. Jura wujud périodhe patengahanéraMesozoikum, kang ditepungi uga minangka "JamanDinosaurus". Awal périodhe iki ditengeri kanthiprastawa curesé Trias-Jura.
Behrensmeyer, Anna K., Damuth, J.D., DiMichele, W.A., Potts, R., Sues, H.D. & Wing, S.L. (eds.) (1992),Terrestrial Ecosystems through Time: the Evolutionary Paleoecology of Terrestrial Plants and Animals, University of Chicago Press, Chicago and London,ISBN 0-226-04154-9 (cloth),ISBN 0-226-04155-7 (paper)
Haines, Tim (2000)Walking with Dinosaurs: A Natural History, New York: Dorling Kindersley Publishing, Inc., p.65.ISBN 0-563-38449-2
Monroe, James S., and Reed Wicander. (1997)The Changing Earth: Exploring Geology and Evolution, 2nd ed. Belmont: West Publishing Company, 1997.ISBN 0-314-09577-2
Ogg, Jim; June, 2004,Overview of Global Boundary Stratotype Sections and Points (GSSP's)http://www.stratigraphy.org/gssp.htm Diakses 30 Apr 2006.
Taylor, P.D. and Wilson, M.A., 2003. Palaeoecology and evolution of marine hard substrate communities. Earth-Science Reviews 62: 1-103.Archived 2009-03-25 at theWayback Machine.
