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5.5.1. Fossils in Aragon

Fossil deposits in Aragon

Aragon has a wide variety of paleontological sites. Some of these deposits, from north to south, are:
  • Arén (Huesca)It contains ichnites and skeletal remains of dinosaurs that lived at the end of the Mesozoic, shortly before its great extinction 65 million years ago. A new species of dinosaur, the Arenysaurus, was discovered at this site.
  • Archaeological site of the Fondota (Abiego, Huesca). It contains about a thousand ichnites of herbivores from the Paleogene, in the Cenozoic, about 35 million years ago.
  • Mount Valdeliso site (Sierra de Luna, Zaragoza). It contains ichnites from two types of Miocene (Cenozoic) mammals.
  • Murero site (Zaragoza). They contain a large number of fossils, especially trilobites (Paleozoic) of which more than 80 different species have been found.
  • Archaeological site of the ravine of the shells (Ricla, Zaragoza). In the ravine and its surroundings, the fossil remains of invertebrates are frequent, especially mollusks, such as rhynconellas, terebrátulas, belemnites and ammonites from the Jurassic period. Bones of marine reptiles have also been found, such as the head of the Ricla crocodile, the oldest marine crocodile in the Iberian Peninsula, some 35 million years old.
  • Teruel dinosaur sites. In Teruel are most of the paleontological sites. It is necessary to name the Dinópolis Territory, a cultural, scientific and leisure park, dedicated to paleontology and that has several locations, in Teruel capital and in other towns in the province, such as Peñarroya de Tastavins, Galve, Rubielos de Mora, Castellote, Albarracín and Riodeva. Dinosaurs are from the Mesozoic, both large herbivorous quadrupeds and small carnivorous bipeds.

But in addition to what is exhibited in Dinópolis, other places must be highlighted, such as Galve, where there is a small museum created for the José María Herrero collection. In Los Corrales del Pelejón, also in Galve, there is another site of dinosaur ichnites. In El Castellar, there are also 60 inventoried deposits. In Concud, there are mammalian fossils, in Castellote, fossil trees and dinosaur ichnites, in the Río Martín Cultural Park there are also dinosaur ichnites, and in Alacón, the Paleontology Interpretation Center.

If we talk about fossils, we must also highlight and visit the Museum of Natural Sciences of the University of Zaragoza.


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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.