English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/21648
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Soft tissue preservation in Miocene frogs from Libros (Spain): insights into the genesis of decay microenvironments.

AuthorsMcNamara, Maria E.; Orr, P. J.; Kearns, S.L.; Alcalá, Luis ; Anadón, Pere ; Peñalver, E.
Issue DateFeb-2009
PublisherSEPM (Society for Sedimentary Geology)
CitationPalaios 24(2): 104-117 (2009)
AbstractThe Late Miocene Libros biota is a lacustrine-hosted, Konservat- Lagersta¨tte from Libros, near Teruel in northeast Spain. Adult frogs are characterized by the preservation of their soft tissues, some in histological detail. The soft tissues of the body outline are preserved as a layered structure, which comprises a central carbonaceous bacterial biofilm enveloped by the phosphatized remains of the mid-dermal Eberth-Katschenko layer, external to which is a second, thinner, carbonaceous bacterial biofilm. Bacterial autolithification is restricted to limited phosphatization of the cell margins of bacteria adjacent to phosphatized dermis. Phosphatization occurred during the late stages of decay; phosphate was sourced primarily from the dermis itself. Other tissues and organs are also defined in authigenic minerals: nervous tissue (aragonite), the stomach (calcium phosphate), and collagen fibers of the dermal stratum compactum (calcium sulphate); bone marrow is organically preserved. The disparate modes of soft-tissue preservation within individual specimens reflects development of several highly localized, chemically distinct microenvironments within the frog carcasses during decay. These microenvironments correspond to individual organs and tissues, were established at different times during decay, and varied in their duration. The preservation of soft tissues via multiple taphonomic pathways was controlled ultimately by anatomical and physiological factors.
Publisher version (URL)http://palaios.geoscienceworld.org/cgi/content/full/24/2/104
URI10261/21648
DOI10.2110/palo.2009.p08-017r
ISSN0883-1351
Appears in Collections:(ICTJA) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.