oligocene

• Nome próprio que designa a época geológica do Oligoceno, período da era Cenozoica entre aproximadamente 34 e 23 milhões de anos atrás, marcado pela expansão de mamíferos e pelo surgimento de espécies como os primeiros felinos dentes-de-sabre.

A proper noun referring to a geological epoch that lasted from approximately 40 million to 25 million years ago, known for the appearance of sabertoothed cats.

incontável · nome próprio

1. C2formalscientific

   A geological epoch that lasted from approximately 34 million to 23 million years ago, characterized by the appearance of early sabertoothed cats and the spread of grasslands.

   Oligoceno

   • The Oligocene epoch saw the rise of many modern mammal groups.
   • Fossils from the Oligocene include early species of elephants and horses.
   • During the Oligocene, the climate became cooler and drier, leading to the expansion of grasslands.