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Cretaceous Ray Traces?: An Alternative Interpretation for the Alleged Dinosaur Tracks of La Posa, Isona, NE Spain

2001; Society for Sedimentary Geology; Volume: 16; Issue: 4 Linguagem: Inglês

10.1669/0883-1351(2001)016 2.0.co;2

1938-5323

Jordi Martinell, Jordi M. de Gibert, Rosa Domènech, A. A. Ekdale, Phyllis Steen,

Geological and Geochemical Analysis

Other| August 01, 2001 Cretaceous Ray Traces?: An Alternative Interpretation for the Alleged Dinosaur Tracks of La Posa, Isona, NE Spain JORDI MARTINELL; JORDI MARTINELL 1Departament d'Estratigrafia i Paleontologia, Universitat de Barcelona, Martí Franquès s/n, 08071 Barcelona, Spain Search for other works by this author on: GSW Google Scholar JORDI M. DE GIBERT; JORDI M. DE GIBERT 1Departament d'Estratigrafia i Paleontologia, Universitat de Barcelona, Martí Franquès s/n, 08071 Barcelona, Spain Search for other works by this author on: GSW Google Scholar ROSA DOMÈNECH; ROSA DOMÈNECH 1Departament d'Estratigrafia i Paleontologia, Universitat de Barcelona, Martí Franquès s/n, 08071 Barcelona, Spain Search for other works by this author on: GSW Google Scholar A. A. EKDALE; A. A. EKDALE 2Department of Geology and Geophysics, University of Utah, 135 South 1460 East, Salt Lake City, Utah 84112-0111 Search for other works by this author on: GSW Google Scholar PETER P. STEEN PETER P. STEEN 2Department of Geology and Geophysics, University of Utah, 135 South 1460 East, Salt Lake City, Utah 84112-0111 Search for other works by this author on: GSW Google Scholar PALAIOS (2001) 16 (4): 409–416. https://doi.org/10.1669/0883-1351(2001)016 2.0.CO;2 Article history accepted: 04 Feb 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 JORDI MARTINELL, JORDI M. DE GIBERT, ROSA DOMÈNECH, A. A. EKDALE, PETER P. STEEN; Cretaceous Ray Traces?: An Alternative Interpretation for the Alleged Dinosaur Tracks of La Posa, Isona, NE Spain. PALAIOS 2001;; 16 (4): 409–416. doi: https://doi.org/10.1669/0883-1351(2001)016 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 At the locality of La Posa, Isona, Spain, an extensive Upper Cretaceous bedding plane is exposed and exhibits thousands of ovate prints that had been interpreted as dinosaur tracks. Detailed study of these trace fossils allows the proposal of an alternative hypothesis that they were produced by the feeding activity of rays or other fish with similar behavior. Comparison with modern stingray pits from a tidal flat in Puerto Peñasco, Sonora, Mexico, reveals a great deal of similarity with the Cretaceous trace fossils in their distribution, morphology, environmental setting, and associated invertebrate bioturbation. Moreover, ray body fossils are known from neighboring contemporaneous deposits. The trace fossils here are attributed to the ichnogenus Piscichnnus. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.