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Mostrando ítems 11-20 de 77
Fish faunas from the Late Jurassic (Tithonian) Vaca Muerta Formation of Argentina: One of the most important Jurassic marine ichthyofaunas of Gondwana
(Pergamon-Elsevier Science Ltd, 2015-07)
The marine deposits of the Vaca Muerta Formation (Tithonian-Berriasian) houses one of the most diverse Late Jurassic ichthyofaunas of Gondwana. However, most of the specimens remain undescribed. Jurassic fishes have been ...
A new species of Pliosaurus (Sauropterygia, Plesiosauria) from the upper Jurassic of northwestern Patagonia, Argentina
(Asociacion Paleontologica Argentina, 2014-04)
Pliosaurus patagonicus sp. nov., from the middle Tithonian, Vaca Muerta Formation, Neuquén Province, Argentina, is described on an autapomorphic trait –i.e., the distance between the posterior functional alveolus and ...
High-precision U-Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic-Cretaceous boundary
(Copernicus Publications, 2019-01)
The numerical age of the Jurassic-Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U-Pb geochronological data around the Jurassic-Cretaceous boundary in two ...
A new Pliosaurus species (Sauropterygia, Plesiosauria) from the Upper Jurassic of Patagonia: New insights on the Tithonian morphological disparity of mandibular symphyseal morphology
(Paleontological Society, 2018-03)
Most species of the genus Pliosaurus Owen, 1842 come from the Northern Hemisphere, however, a growing number of new specimens are now available from the Southern Hemisphere. Here, a new species of Pliosaurus is described, ...
Finding of two new radiolarian associations calibrated with ammonoids in the Vaca Muerta Formation (Late Jurassic–Early Cretaceous), Neuquén Basin, Argentina
(Pergamon-Elsevier Science Ltd, 2017-04)
An association of ammonoids and radiolarians retrieved from a sedimentary section of the Vaca Muerta Formation at Vega de Escalone, Neuquén Basin, Argentina, was analized under a strict stratigraphic control. Nine ammonoid ...
A new species of Andiceras Krantz (Cephalopoda: Ammonoidea) from the Late Jurassic-Early Cretaceous of the Neuquén Basin, Mendoza, Argentina: Systematics and BiostratigraphyUna nueva especie de Andiceras Krantz (Cephalopoda: Ammonoidea) del Jurásico Tardío-Cretácico Temprano de la Cuenca Neuquina, Mendoza, Argentina: Sistemática y bioestratigrafía
(Servicio Nacional de Geología y Minería, 2012-01)
Se describe una nueva especie de amonoideo perteneciente al género andino endémico Andiceras Krantz. Los restos asignados a Andiceras planulatus sp. nov. se disponen estratigráficamente entre los últimos niveles con ...
Purranisaurus Potens Rusconi, an enigmatic Metriorhynchid from the late jurassic–early cretaceous of the Neuquen Basin
(Society Of Vertebrate Paleontology, 2015)
The Tithonian record from northwestern Patagonia (Neuquén Basin) documents a complete succession of lower, middle, and late Tithonian marine reptiles. From the late Tithonian–early Berriasian of Patagonia, three marine ...
Palinoestratigrafía del Tithoniano-Hauteriviano del centro-oeste de la Cuenca Neuquina, ArgentinaPalynostratigraphy of the Tithonian-Hauterivian interval, West-Central Neuquén Basin, Argentina
(Instituto Geológico y Minero de España, 2003-12)
Se presenta una palinozonación preliminar para el intervalo Tithoniano-Hauteriviano en el cen- tro-oeste de la Cuenca Neuquina. Teniendo en cuenta las apariciones masivas de taxones continenta- les y marinos y la presencia ...
Late Jurassic Sauropods In Chilean Patagonia
(Asociacion Paleontologica Argentina, 2015)
A description is provided of the first sauropod remains (i.e., isolated vertebrae and appendicular
bones) from the Late Jurassic of Aysen, in Chilean Patagonia (Toqui Formation, late Tithonian).
Although the bones found ...
Reptiles from lithographic limestones of the Los Catutos Member (Middle-Upper Tithonian), Neuquén Province, Argentina: An essay on its taxonomic composition and preservation in an environmental and geographic contextReptiles de las calizas litográficas del Miembro Los Catutos (Titoniano Medio-Superior) Provincia de Neuquén, Argentina: un ensayo sobre la composición taxonómica y preservación en un contexto paleoambiental y paleobiográfico
(Asociacion Paleontologica Argentina, 2015-02)
The lithographic limestones of Los Catutos Member (Vaca Muerta Formation, Neuquén province, Argentina) (late middle-early upper Tithonian) bear a great diversity of marine reptiles. These lithographic limestones are ...