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Há 20 horas · C’est au cours du 19e siècle, avec le naturaliste Georges Cuvier, que l’on commence à avoir une image plus nette et précise du ptérodactyle. Bien que possédant une petite envergure ...
Há 20 horas · Cuvier proved that the different levels of deposits represented different time periods in the early 19th century. The surface-level deposits in the Americas contained later mammals like the megatheriid ground sloth Megatherium and the mammutid proboscidean Mammut (later known informally as a "mastodon"), which were some of the earliest-named fossil mammal genera with official taxonomic ...
Há 20 horas · Elephas indicus was proposed by Georges Cuvier in 1798, who described an elephant from India. Coenraad Jacob Temminck named an elephant from Sumatra Elephas sumatranus in 1847. Frederick Nutter Chasen classified all three as subspecies of the Asian elephant in 1940. These three subspecies are currently recognised as valid taxa.
