An Argentine part of the “Fiona” hall, the only fossil of ictiosauria with embryos

A scientific team, in which an Argentine paleontologist participated, deserving of
A scientific team, in which an Argentine paleontologist participated, deserving of “Fiona”, the fossil complete of an ictiosauria adult with its intact embryos (Azara Foundation)

Los ictiosaurios eran grandes reptiles marinos con aspecto de pez y dolfín. No eran dinosaurs, but live with these from the Triassic Inferior to the Cretácico Superior (approximately 245 and 90 million years old), which is America, Europe and Asia.

After 31 days of expedition in the area of ​​Glaciar Tyndall de la Patagonia chilena, a leading team of paleontologist Judith Pardo Pérez logró desenterrar in “Fiona”, the fossil complete of an ictiosauria adulta with its intact embryos. The excavation in the glacier camp is still cargo Argentine Jonathan Kaluza, paleontological technique of the Azara Foundation – CONICET and del paleontologist Hector Ortízde la Universidad de Chile (Chile).

Los ictiosaurios eran grandes reptiles marinos con aspecto de pez y dolfín
Los ictiosaurios eran grandes reptiles marinos con aspecto de pez y dolfín

The logistics company, the difficulties of moving and moving in a very beautiful place, and the extreme climatic conditions, hiccuping this travesty and desaffing of titanium houses. The paleontological expedition realized between March and April of this year, that you have a campaign in October 2021, consiguió excavar a la única hembra preñada de entre 129 y 139 millones de años del Cretácico temprano, registrada y extraída en el planeta.

Fiona has four long metros and is complete, articulated and with embryos in gestation. In this sense, the excavation brought relative information to the species, paleobiology in the wake of embryonic desolation, and an experience that affects the life of the child, “said paleontologist Judith Pardo Pérez. This is the sum of the discovery of 23 new specimens, because of the fact that he found a house in the center of the Chilean region, which was converted into the deposit of ictosaurios from the time of the most abundant creature and the best preserved of the planet.

The results of the expedition with all expectations, y aún más de las que se esperaba. With these fossil registers we expect results about the diversity, disparity and paleobiology of the ictiosaurs of the locality of Glaciar Tyndall, establishing degrees of madurez ossea and ecological niches to evaluate possible transitions of possible dietary conditions. paleobiogeographic connections with ictiosaurs of other attitudes ”, the expert said.

Los ictiosaurios fueron reptiles marinos que vivieron en todo el planeta durante la era del Mesozoico, entre 250 a 90 millones de años atrás. Tenian of aletas and posters, a caudal and a dorsal alet. Your body shape is similar to that of the current dolphins. Poseían pulmones, eran vivíparos y son considerados los animales que alcanzaron el mayor grado de adaptación al medio marino. “Fiona”, in particular, was discovered by Dr. Pardo the year 2009 during the last day of the campaign of a paleontological expedition to Glaciar Tyndall that was financed, in this opportunity, by the German government Mentras desarrollaba su tesis de doctorado en la Universidad de Heidelberg. The material has recently been excavated, prepared in the paleontology laboratory of the Museum of Natural History of the Río Seco, in Punta Arenas, where the almacenado, temporalmente, for its posterior exhibition.

  “Fiona”, in particular, was discovered by Dr. Pardo el año 2009 during the last day of the campaign of a paleontological expedition to the Tyndall Glaciar (Azara Foundation)
“Fiona”, in particular, was discovered by Dr. Pardo el año 2009 during the last day of the campaign of a paleontological expedition to the Tyndall Glaciar (Azara Foundation)

Extreme camp work

The paleontological study area of ​​Glaciar Tyndall is located 24 kilometers from the last access road to the building. To get to this place, you have to realize a walk from 8 to 9 hours from the Gray sector in the National Park Torres del Paine. This is what the lands of the country are like, with a permanence of the three weeks we have two months in the locality, packing and carving caballos to transport the materials of the camp and provisions to occupy the dormant stage of all and all of the expedition.

For this specific campaign, invigorate in a hangar to work on protecting the wind, on the meadow and on the field and, also in the machinery and excavation tools for an extremely hard land. Debido al peso de toda esta carga ya la complicada accesibilidad -que involucra técnicas de escalada y kaminata de una hora por las rocas hasta el sitio de excavación-, se kontó con un servicio de helicóptero para el transporte de los materiales y de la ictiosauria excavada .

In parallel, equally, it is reciprocated el apoyo la alcaldesa de la Ilustre Municipalidad de Torres del Paine, Anahí Cárdenas, who facilitated the use of a plum truck to translate the materials via terrestrial and redevelopment, including the Natural History Museum of the Río Seco in Punta Arenas (400 kilometers of recreation, approximately).

To get to this place, take a walk from 8 to 9 hours from the Gray sector in the Torres del Paine National Park (Azara Foundation)
To get to this place, take a walk from 8 to 9 hours from the Gray sector in the Torres del Paine National Park (Azara Foundation)

But the excavation, fire more. Hector Ortiz and the Argentine Jonathan Kaluza, paleontological technician of the Azara Foundation, is a cargo carrier of this region, having the only ones to realize a glamorous summer camp. All, it is important to record the extreme and completeness of this operation. “La roca del afloramiento es tan dura que no se logra excavar con un combo, cincel y brocha, debiendo cortar, perforar i quebrar blokes con hermientas diamantadas y de alto caliber”, señaló Ortiz, a lo que Kaluza agregó: “This is the most difficult excavation that I have in my career ”enfatizando quo “esta locidad fosilífera en la Patagonia chilena es exceptional, y es extremadamente importante continuar con el apoyo del gobierno chileno para continua investigando y protegiendo este valioso patrimonio”.

Collaborative science

The magnitude of the objective of the investment, the completion of the associations in the field, the multidisciplinary nature of the studio, which will be incorporated into the project’s development, distinct national and foreign investigators, of the cuales, mayoritariamente, fueron mujeres.

Hector Ortiz and the Argentine Jonathan Kaluza, paleontological technician of the Azara Foundation is working on the excavation cargo (Azara Foundation)
Hector Ortiz and the Argentine Jonathan Kaluza, paleontological technician of the Azara Foundation is working on the excavation cargo (Azara Foundation)

Dr. Erin Maxwell, head of the expedition of the Marine Department of Natural History of the Stuttgart Museum of Natural History (Germany), recognized the world through its decades of artichokes; Argentine paleontological technician Jonathan Kaluza, expert excavator of the Azara Foundation – CONICET (Argentina; Miguel Cáceres, director of the Río Seco Natural History Museum (Punta Arenas, Chile) and Cristina Gascó, preparator and restorer of the Historian History Naturalist of Stuttgart, Hector Ortíz, biologist and excavator in paleontology (Chile) who participated in the initiations of paleontological excavations in Cerro Guido (Magallanes) with INACH and the University of Chile; Catalina Astete, student of geography practice the Catholic University of Temuco (Chile), Jone Mungia, geographer and surveyor of the logistics of the campaign (Chile), Dr. Dean Lomax, paleontologist at the University of Manchester (Inglaterra) and world expert in ictiosaurios, Marcelo Arévalo and Esteban Beltrán as part of the logistics of Punta Arenas (UMAG, Chile).

For Dr. Pardo, the participation of the Stuttgart Natural History Museum’s expertise is fue y es clave. Este lugar, es uno de los museos con mayor tradición histórica en el studio de ictiosaurios desde el siglo XIX y cuenta con una de las collekciones más grandes del mundo, con ejemplares de todas las edades, alcanzando más de 500 specímenes. Respectfully, Dra. Maxwell, said that these registers can be used to compare with the new hallazgos of Chilena Patagonia, but that we have many fossils of marine reptile fossils during this period of the world level (~ 130-140 million years ago), y los que tenemos son de Europa ”, said. On the basis of this, the result is that “Tyndall’s location is very important for a holiday in our country with the tips and diversity of generals who live in the ocean in the hemisphere, especially in polar temples.”

This project also includes Dr. Dean Lomax, of the Department of Environmental Sciences and the Territory, of the U. de Manchester, Inglaterra, who was able to find the opportunity to share the opportunity to find a fossil site on the planet. “He said that these unrecognizable hexaaurians are well preserved in an extreme country, weighed down by a glacier and retired, but they don’t care about any other place in the world. The international collaboration helps to build an exceptional fossil site with the rest of the world, in the middle of the world, to promote science, ”he said.

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