It has been funded by the National Geographic Society and the National Plan. At present, the fossils from the Cerro de los Batallones sites, including those of horses, are being exhibited in the Regional Archaeological Museum of the Community of Madrid (in Alcalá de Henares) within the exhibition “The hill of the toothy tigers of saber. The Miocene deposits of the Cerro de los Batallones (Torrejón de Velasco, Community of Madrid) “. In a work published this week in the journal PLOSONE , paleobiologists from the Autonomous University of Madrid (UAM), in collaboration with the Geological and Mining Institute of Spain (IGME), describe how in the Las Hoyas deposit (Cuenca), In addition to the remains of fossil plants and animals, other revealing records from the remote past are being studied: coprolites. It is rare for paleontologists to document

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life processes in organisms that lived millions Sudan Email List of years ago. This difficult task requires finding ichnofossils (recorded signals of the activity of living things in the past). Among these, the most common are the ichnites, or footprints; but you can also find coprolites, or fossilized feces. In a work published this week in the journal PLOSONE , paleobiologists from the Autonomous University of Madrid (UAM), in collaboration with the Geological and Mining Institute of Spain (IGME), provide new information on the Lower Cretaceous coprolites from the Cuenca site de Las Hoyas, so far not studied. According to experts, not only are corporeal fossils of plants and animals being documented in the biota of the Las Hoyas site. A great diversity and abundance of fossilized feces, generally of medium size (between 1 and 5 centimeters), is also being discovered.

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“So far we have cataloged more than 1,500 specimens of coprolites. It is one of the best documented and complete records in the world referring to a continental wetland from the Lower Cretaceous period ”, say the UAM researchers. “Within this set – they add – we have managed to characterize up to 12 different types of coprolites, taking into account their morphology. We have also elaborated a dichotomous key to specify its shapes, the geometry of its ends and its symmetry ”. Vertebrate predators The fossils were studied with non-destructive techniques. The researchers analyzed the chemical composition of the matrix using EDX analysis, noting that it is composed primarily of calcium phosphate. This would indicate that the producers of the coprolites were carnivores, in part due to the breakdown of the apatite that is part of the bones. “According to their forms,

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