RIO DE JANEIRO, BRAZIL - "This is a caudal vertebra from the tail of this new dinosaur, it weighs between 20 and 25 kg." Dissector in hand, like the one used by dentists, geologist Alberto Garrido begins his meticulous work in the laboratory of the Provincial Museum of Natural Sciences in Zapala, 1,300 kilometers southwest of Buenos Aires in the Argentine province of Neuquén.
The first elements analyzed of this 98 million-year-old giant titanosaur, from the sauropod branch, suggest that it may be the largest ever found in the world, according to a study published on January . . .