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Occurrence of the Southernmost South American Ichthyosaur (Middle Jurassic--Lower Cretaceous), Parque Nacional Torres del Paine, Patagonia, Southernmost Chile

2003; Society for Sedimentary Geology; Volume: 18; Issue: 1 Linguagem: Inglês

10.1669/0883-1351(2003)018 2.0.co;2

1938-5323

Michael R. Shultz, Andrea Fildani, Mercedes Suárez,

Geological and Geochemical Analysis

Other| February 01, 2003 Occurrence of the Southernmost South American Ichthyosaur (Middle Jurassic—Lower Cretaceous), Parque Nacional Torres del Paine, Patagonia, Southernmost Chile MICHAEL R. SHULTZ; MICHAEL R. SHULTZ 1Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115 Search for other works by this author on: GSW Google Scholar ANDREA FILDANI; ANDREA FILDANI 1Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115 * Corresponding author: fildani@pangea.stanford.edu Search for other works by this author on: GSW Google Scholar MARIO SUAREZ MARIO SUAREZ 3Sección Paleontología, Museo Nacional de Historia Natural, Casilla 787, Santiago, Chile Search for other works by this author on: GSW Google Scholar PALAIOS (2003) 18 (1): 69–73. https://doi.org/10.1669/0883-1351(2003)018 2.0.CO;2 Article history accepted: 22 Jul 2002 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation MICHAEL R. SHULTZ, ANDREA FILDANI, MARIO SUAREZ; Occurrence of the Southernmost South American Ichthyosaur (Middle Jurassic—Lower Cretaceous), Parque Nacional Torres del Paine, Patagonia, Southernmost Chile. PALAIOS 2003;; 18 (1): 69–73. doi: https://doi.org/10.1669/0883-1351(2003)018 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyPALAIOS Search Advanced Search Abstract An ichthyosaur discovered in the Ultima Esperanza Province, southern Chile, is the southernmost specimen of this group yet discovered in South America. The incomplete fossil consists of 17 vertebrae and associated neural arches and ribs. Occurring within a large block in glacio-fluvial sediments adjacent to the Campo de Hielo Patagónico Sur, the remains cannot be given a species designation nor be dated with precision or tied to one specific formation at this time. However, the rock type, geologic occurrence of the block, and glaciology of the sector enable the material to be placed within the upper part of the Middle to Upper Jurassic Tobifera Formation or the Lower Cretaceous Zapata Formation. Although the fairly broad stratigraphic range and limited fossil material hamper careful stage-level paleobiogeographic analysis, this occurrence documents the existence of ichthyosaurs in the now closed Rocas Verdes back-arc basin. This occurrence extends the distribution of ichthyosaurs in South America some 1500 km south of previously reported fossil material. The fossil provides support for the existence of a possible migration seaway between southern South America and western Africa during the Late Jurassic associated with the breakup of the southern sector of Gondwana. This seaway would be the southern counterpart to the Hispanic Corridor that connected the Pacific to the west Tethys around the northern end of South America. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.