Few dinosaur species
1991/02/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
A US paleontologist claims that the number of dinosaur species is lower than expected. The number of species they inhabited was not higher than that of mammals.
Peter Dobson, of the University of Pennsylvania, has tried to calculate the number of dinosaur species that lived in his day and, according to him, was around 1000. However, he confesses that he hoped to find thousands of different species and is therefore the first to be surprised.