Evolutionary Rates of Jurassic Ammonites in Relation to Sea-level Fluctuations

Abstract

Other| August 01, 2001 Evolutionary Rates of Jurassic Ammonites in Relation to Sea-level Fluctuations JOSÉ SANDOVAL; JOSÉ SANDOVAL 1Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071- Granada, Spain Search for other works by this author on: GSW Google Scholar LUIS O'DOGHERTY; LUIS O'DOGHERTY 2Facultad de Ciencias del Mar, Universidad de Cádiz, 11510- Puerto Real (Cádiz), Spain Search for other works by this author on: GSW Google Scholar JEAN GUEX JEAN GUEX 3Institut de Géologie et Paléontologie, BFSH-2, Université de Lausanne, CH-1015 Switzerland Search for other works by this author on: GSW Google Scholar PALAIOS (2001) 16 (4): 311–335. https://doi.org/10.1669/0883-1351(2001)016<0311:EROJAI>2.0.CO;2 Article history accepted: 16 Jan 2001 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation JOSÉ SANDOVAL, LUIS O'DOGHERTY, JEAN GUEX; Evolutionary Rates of Jurassic Ammonites in Relation to Sea-level Fluctuations. PALAIOS 2001;; 16 (4): 311–335. doi: https://doi.org/10.1669/0883-1351(2001)016<0311:EROJAI>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietyPALAIOS Search Advanced Search Abstract An analysis is presented of the diversity and faunal turnover of Jurassic ammonites related to transgressive/regressive events. The data set contained 400 genera and 1548 species belonging to 67 ammonite zones covering the entire Jurassic System. These data were used in the construction of faunal turnover curves and ammonite diversities, that correlate with sea-level fluctuation curves. Twenty-four events of ammonite faunal turnover are analyzed throughout the Jurassic. The most important took place at the Sinemurian-Carixian boundary, latest Carixian-Middle Domerian, Domerian-Toarcian boundary, latest Middle Toarcian-Late Toarcian, Toarcian-Aalenian boundary, latest Aalenian-earliest Bajocian, latest Early Bajocian-earliest Late Bajocian, Early Bathonian-Middle Bathonian boundary, latest Middle Bathonian-earliest Late Bathonian, latest Bathonian-Early Callovian, earliest Early Oxfordian-Middle Oxfordian, earliest Late Oxfordian-latest Oxfordian, latest Early Kimmeridgian, Late Kimmeridgian, middle Early Tithonian and Early Tithonian-Late Tithonian boundary. More than 75 percent of these turnovers correlate with regressive-transgressive cycles in the Exxon, and/or Hallam′s sea-level curves. In most cases, the extinction events coincide with regressive intervals, whereas origination and radiation events are related to transgressive cycles. The turnovers frequently coincide with major or minor discontinuities in the Subbetic basin (Betic Cordillera). You do not currently have access to this article.