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Mostrando ítems 21-30 de 127
Cenozoic trace fossils of the Cruziana, Zoophycos and Nereites ichnofacies from the Fuegian Andes, ArgentinaTrazas fósiles de la ichnofacies de Cruziana, Zoophycos y Nereites del Cenozoico de los Andes Fueguinos
(Asociación Paleontológica Argentina, 2008-06-30)
Se dan a conocer resultados de estudios sistemáticos, implicancias paleoambientales y diversidad de trazas fósiles del PaleocenoMioceno de los Andes Fueguinos. Se reconocen las icnofacies de Cruziana (Formación Leticia, ...
Paleoenvironments of a regressive Devonian section from Paraná Basin (Mato Grosso do Sul state) by integration of ichnologic, taphonomic and sedimentologic analyses
(Sociedade Brasileira de Geologia, 2019)
Dictyodora-Nereites dominated ichnofauna in the Silurian−Devonian turbidite-like deposits of central-western Gondwana (San Rafael Block, Argentina): New stratigraphic and bathymetric constraints
(Pergamon-Elsevier Science Ltd, 2021-03)
The Río Seco de los Castaños Formation (San Rafael Block) holds one of the few middle Palaeozoic (Silurian−Devonian) records worldwide of a Nereites-Dictyodora dominated ichnofauna with sedimentological features such as ...
Bee cell trace fossils associations on paleosols from the Santa Cruz Formation: Palaeoenvironmental and palaeobiological implications
(Elsevier Science, 2016-10)
Numerous isolated fossil bee cells and other trace fossils are documented from the Santa Cruz Formation (Santa Cruz, Argentina). The trace fossils are described from paleosols of 7 coastal localities. The paleosols are ...
Walking on ashes: insect trace fossils from Laetoli indicate poor grass cover associated with early hominin environments
(Wiley Blackwell Publishing, Inc, 2018-07)
More than 4000 insect trace fossils collected in recent years from Pliocene deposits at Laetoli in northern Tanzania provide new insights on early hominin palaeoenvironments. These trace fossils include: Fictovichnus ...
Paleoenvironments of a regressive Devonian section from Parana Basin (Mato Grosso do Sul state) by integration of ichnologic, taphonomic and sedimentologic analyses
(Soc Brasileira Geologia, 2018-10-01)
Studies that integrate ichnologic, taphonomic and sedimentologic data result in more accurate paleoenvironmental inferences than isolated approaches. Most of paleontological studies regarding Devonian from Parana Basin ...
TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
(Polish Geological Soc, 2020-01-01)
The Upper Cretaceous Capacete Formation, from the intracratonic Sanfranciscana Basin, central Brazil, consists of epiclastic sediments with a significant aeolian contribution. This unit has been traditionally interpreted ...
Diffuse termitinae nests shed light on the affinities of Laetolichnus kwekai (Krausichnidae)
(Society for Sedimentary Geology, 2021-03)
The insect trace fossil Laetolichnus kwekai, which is composed of a small chamber extending to slender cylinders at each end, was tentatively included in the ichnofamily Krausichnidae as termite nests. New evidence presented ...
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide
(Elsevier Science, 2007-11)
Ichnofossils developed in a firmground at the contact between the middle Eocene-lower Miocene continental Sarmiento Formation and the lower Miocene marine Chenque Formation, in central-eastern Patagonia, Argentina, are ...