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Parcs naturels d’Ischigualasto / Talampaya

Ischigualasto / Talampaya Natural Parks

These two contiguous parks, extending over 275,300 ha in the desert region on the western border of the Sierra Pampeanas of central Argentina, contain the most complete continental fossil record known from the Triassic Period (245-208 million years ago). Six geological formations in the parks contain fossils of a wide range of ancestors of mammals, dinosaurs and plants revealing the evolution of vertebrates and the nature of palaeo-environments in the Triassic Period.

Parcs naturels d’Ischigualasto / Talampaya

Ces deux parcs contigus s'étendent sur plus de 275 300 ha dans la région désertique jouxtant à l'ouest les Sierras Pampeanas du centre de l'Argentine. Ils renferment l'ensemble continental le plus complet au monde de fossiles de la période du Trias (de -245 à -208 millions d'années). On y trouve six formations géologiques contenant des fossiles d'un large spectre d'ancêtres de mammifères, de dinosaures et de plantes, qui témoignent de l'évolution des vertébrés et de la nature des paléo-environnements de la période du Trias.

منتزها إيشيغوالاستو - تالامبايا الطبيعيان

منتزها إيشيغوالاستو - تالامبايا الطبيعيان يمتدّ هاذان المنتزهان المتجاوران على أكثر من 275300 هكتار في المنطقة الصحراوية المشرفة على غرب السييرا بامبياناس وسط الأرجنتين. وهما يشملان المجموعة القاريّة الأكثر تكاملاً في العالم من المتحجّرات التي تعود إلى فترة الترياس (من- 245 إلى - 208 مليون سنة). ونجد 6 تشكيلات جيولوجية تشتمل متحجّرات لمجموعة كبيرة من أسلاف الثدييات والديناصورات والنبات، ما يشهد على تطوّر الفقاريات وطبيعة العناصر البيئية التي تعود إلى فترة الترياس.

source: UNESCO/ERI

伊沙瓜拉斯托-塔拉姆佩雅自然公园

这两个公园相邻,坐落在阿根廷中部彭巴山 (the Sierra Pampeanas) 西麓的沙漠地区,绵延275 300公顷,保存有三叠纪(2.45亿至2.08亿年前)最为完整的大陆化石。公园内的六个地质层含有哺乳动物先祖、恐龙以及各种植物化石,反映了脊椎动物的进化过程以及三叠纪时期古代自然环境。

source: UNESCO/ERI

Природные парки Исчигуаласто и Талампайя

Два близко расположенных парка, занимающих 275,3 тыс. га в пустынном районе на западной окраине гор Сьерра-Пампеанас в центральной Аргентине, являются местонахождением наиболее целостных ископаемых остатков наземной флоры и фауны, относящихся к триасовому периоду (245 - 208 млн. лет назад). Шесть геологических формаций в двух парках содержат окаменелые фрагменты различных предков современных млекопитающих, динозавров и растений, что помогает изучить эволюцию позвоночных животных и палеонтологическую среду в триасовом периоде.

source: UNESCO/ERI

Parques naturales de Ischigualasto / Talampaya

Estos dos parques contiguos se extienden por una superficie de más de 275.300 hectáreas en la región desértica que limita al oeste con las Sierras Pampeanas del centro de Argentina. Las seis formaciones geológicas de los parques albergan el conjunto continental de fósiles más completo del mundo correspondientes al Triásico, el periodo geológico que se inició unos 245 millones de años antes de nuestra era y finalizó unos 37 millones de años después. Los fósiles comprenden una amplia gama de antepasados de mamíferos, así como vestigios de dinosaurios y plantas, que ilustran la evolución de los vertebrados y las características de los paleoambientes del período Triásico.

source: UNESCO/ERI

イスチグアラスト/タランパジャ自然公園群 

source: NFUAJ

Nationale parken Ischigualasto en Talampaya

Deze twee aangrenzende parken strekken zich uit over 275.300 hectare en liggen in het woestijngebied aan de westelijke grens van de Sierra Pampeanas in centraal Argentinië. De nationale parken bevatten de meest complete registratie van continentale fossielen uit het Trias (245 tot 208 miljoen jaar geleden). In de parken bevinden zich zes geologische formaties die fossielen bevaten van de voorouders van zoogdieren, dinosaurussen en planten. Hierdoor krijgt men een goed beeld van de veranderingen tijdens het Triastijdperk; de ontwikkeling die gewervelde dieren doormaakten en de manieren waarop de het paleomilieu veranderde.

Source : unesco.nl

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Parcs naturels d’Ischigualasto / Talampaya © Philipp Schinz
Justification d'inscription

Critère (viii): Le site contient une séquence complète de sédiments continentaux fossilifères représentant l’histoire géologique de la période du Trias dans son entité (45 millions d’années). Aucun autre endroit sur Terre n’a de gisements fossilifères comparables à ceux d’Ischigualasto-Talampaya qui témoignent de l’évolution de la vie vertébrée et de la nature des paléo-environnements du Trias.

Description longue
[Uniquement en anglais]

Talampaya National Park and the contiguous Ischigualasto Provincial Park straddle the border between the provinces of San Juan and La Rioja in north-western Argentina.

The Ischigualasto-Talampaya region is a desert area forming the western border of the Sierras Pampeanas of central Argentina.

The nominated site constitutes almost the entire sedimentary basin known as the Ischigualasto-Villa Union Triassic basin. It was formed by layers of continental sediments deposited by rivers, lakes and swamps over the entire Triassic period (245-208 million years ago). The sediments contain fossils of a wide range of plants and animals including the ancestors of mammals and dinosaurs. They constitute the world's most complete continental fossil record known from the Triassic, revealing the evolution of vertebrates as well as the environments they lived in during this period.

Some 56 genera of fossil vertebrates have been recorded from the area, including fish, amphibians, and a great variety of reptiles including the direct ancestors of mammals. Most of the fossils are found in the uppermost levels of the geological formations and consist almost entirely of archosaurs, including large herbivorous and carnivorous species, primitive crocodiles and primitive mammals about the size of a rat.

The river deposits include large areas of flood plains which indicate rapid flooding, probably after monsoon type storms. Lake and swamp deposits contain large amount of fossil plants, some of them forming coal seams and others preserved as mummification of actual species, an extremely rare form of preservation known from very few localities. Six geologic formations make up the Triassic basin, the earliest of which are the Talampaya and Tarjados formations, red sandstone that forms the impressive cliffs of the Talampaya National Park. The remaining formations are composed of lake beds, swamps, river channels and flood plain deposits. These formations contain the abundant vertebrate and flora fossils.

Today Ischigualasto-Talampaya has sparse desert vegetation characterized by xeric shrubs and cactus. The fauna is typical of the arid regions of western Argentina including several species regarded as being of special value because they are either endemic, nationally threatened or culturally valuable, including Andean condor, chestnut canastero, sandy gallito, puma, guanaco, mara and viscacha.

Before the Spanish conquest, the area was inhabited by several groups of aborigines, usually semi-nomadic hunters and gatherers. The cultural value of Ischigualasto-Talampaya is of great significance, even though a detailed study of rock art, artefacts and archaeological sites has only recently begun. The site lies on the southernmost area of late Inca influence. At Talampaya, many sites have been unearthed and are easily accessible. At Ischigualasto, six sites of rock art have been discovered. In addition, cave and rock overhang habitation sites, as well as burial sites, campgrounds and tool-making areas have also been found. It is possible to classify much of the rock art in terms of geometric figures, human figures and combined scenes.

Source : UNESCO/CLT/WHC