Skip navigation
Por favor, use este identificador para citar o enlazar este ítem: http://rid.unrn.edu.ar/handle/20.500.12049/11677

Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.contributor.authorCaratelli, Martina-
dc.contributor.authorCitton, Paolo-
dc.contributor.authorArchuby, Fernando Miguel-
dc.contributor.authorPignatti, Johannes-
dc.date.accessioned2024-06-26T13:16:57Z-
dc.date.available2024-06-26T13:16:57Z-
dc.date.issued2024-
dc.identifier.citationCaratelli, M., Citton, P., Archuby, F., & Pignatti, J. (2024). Paleoecology of the foraminifer Acruliammina longa (Tappan, 1940) from the upper Hauterivian of the Neuquén Basin (northern Patagonia, Argentina). Cretaceous Research, 105857.es_ES
dc.identifier.issn1095-998Xes_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/11677-
dc.description.abstractHerein the epibiont agglutinated placopsilinid foraminifer Acruliammina longa from the upper Hauterivian of the Neuqu en Basin is discussed. This is the first record from South America of A. longa, already known from the upper Valanginian to lower Turonian? of North America and Europe. The studied material consists of foraminiferal tests forming macroids and encrusting the valves of Ptychomya koeneni, coming from poorly lithified claystones/siltstones to marlstones forming high frequency (6th-order) depositional sequences within the upper Hauterivian Agua de la Mula Member of the Agrio Formation. This new record extends the paleobiogeographic distribution of A. longa, and allows us to investigate the paleoenvironmental and paleoecological significance of this species in a mixed carbonate and siliciclastic ramp. Energy dispersive spectroscopy and X-ray computed microtomography were used to evaluate taphonomic features of foraminiferal tests, highlighting differences between tests that encrust bivalves and those forming macroids, which also differ in their position within the 3rd-order sedimentary sequences. A. longa tests encrusting bivalves are less damaged, show coarser grain size, and occur throughout the 3rd-order regressive systems tracts, whereas tests forming macroids show higher breakage and finer grain size, occurring throughout the 3rd-order transgressive systems tracts. This distribution allows us to interpret changes in rates of terrigenous input at the time of encrustation, and also in energy conditions, highlighting the opportunistic behavior of A. longa. Low sedimentation rates represent the main paleoenvironmental condition that favored foraminiferal propagule settlement and the growth of A. longa, both on bivalve fragments exposed on the seafloor in the case of macroids, and on living Ptychomya koeneni shells.es_ES
dc.format.extentp. 105857es_ES
dc.language.isoenes_ES
dc.publisherElSevieres_ES
dc.relation.urihttps://www.sciencedirect.com/journal/cretaceous-researches_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titlePaleoecology of the foraminifer Acruliammina longa (Tappan, 1940) from the upper Hauterivian of the Neuqu en Basin (northern Patagonia, Argentina)es_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationCaratelli, Martina. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.es_ES
dc.description.filiationCitton, Paolo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.es_ES
dc.description.filiationArchuby, Fernando Miguel. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.es_ES
dc.description.filiationPignatti, Johannes. Dipartimento di Scienze della Terra, Universitá degli Studi di Roma “La Sapienza”, Piazzale Aldo Moro 5, Rome 00185, Italyes_ES
dc.description.filiationCaratelli, Martina. CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires; Argentinaes_ES
dc.description.filiationCitton, Paolo. CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires; Argentinaes_ES
dc.description.filiationArchuby, Fernando Miguel. Centro de Estudios Integrales de la Dinámica Exógena, Universidad Nacional de La Plata. Diagonal 113 Nro 469, La Plata, Buenos Aires 1900, Argentinaes_ES
dc.subject.keywordBenthic foraminiferaes_ES
dc.subject.keywordLower Cretaceouses_ES
dc.subject.keywordAgrio Formationes_ES
dc.subject.keywordPaleoenvironmentes_ES
dc.subject.keywordPaleoecologyes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturaleses_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geologíaes_ES
dc.relation.journalissue158es_ES
dc.description.reviewtruees_ES
dc.description.resumenHerein the epibiont agglutinated placopsilinid foraminifer Acruliammina longa from the upper Hauterivian of the Neuqu en Basin is discussed. This is the first record from South America of A. longa, already known from the upper Valanginian to lower Turonian? of North America and Europe. The studied material consists of foraminiferal tests forming macroids and encrusting the valves of Ptychomya koeneni, coming from poorly lithified claystones/siltstones to marlstones forming high frequency (6th-order) depositional sequences within the upper Hauterivian Agua de la Mula Member of the Agrio Formation. This new record extends the paleobiogeographic distribution of A. longa, and allows us to investigate the paleoenvironmental and paleoecological significance of this species in a mixed carbonate and siliciclastic ramp. Energy dispersive spectroscopy and X-ray computed microtomography were used to evaluate taphonomic features of foraminiferal tests, highlighting differences between tests that encrust bivalves and those forming macroids, which also differ in their position within the 3rd-order sedimentary sequences. A. longa tests encrusting bivalves are less damaged, show coarser grain size, and occur throughout the 3rd-order regressive systems tracts, whereas tests forming macroids show higher breakage and finer grain size, occurring throughout the 3rd-order transgressive systems tracts. This distribution allows us to interpret changes in rates of terrigenous input at the time of encrustation, and also in energy conditions, highlighting the opportunistic behavior of A. longa. Low sedimentation rates represent the main paleoenvironmental condition that favored foraminiferal propagule settlement and the growth of A. longa, both on bivalve fragments exposed on the seafloor in the case of macroids, and on living Ptychomya koeneni shells.es_ES
dc.identifier.doihttps://doi.org/10.1016/j.cretres.2024.105857-
dc.relation.journalTitleCretaceous Researches_ES
Aparece en las colecciones: Artículos

Archivos en este ítem:
Archivo Descripción Tamaño Formato  
Caratelli et al., 2024.pdf11,84 MBAdobe PDFVisualizar/Abrir

Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons