Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
Cambrian
This term is a proper adjective and noun derived from Cambria, the Latin name for Wales, where the geological strata of this period were first identified. It is used almost exclusively within the fields of paleontology, geology, and evolutionary biology to describe the specific window of time when complex life forms first proliferated.
As a noun, it refers to the geological period itself and is treated as a proper noun. It does not have a plural form because it refers to a unique, singular epoch in Earth's history. When used as an adjective, it modifies biological or geological entities, such as "Cambrian fossils" or "Cambrian strata."
Meanings
Relating to the Cambrian period, a geological era approximately 541 to 485 million years ago characterized by the rapid diversification of early multicellular organisms.
Examples
The museum has a fascinating exhibit on Cambrian fossils.
The museum has a fascinating exhibit on Cambrian fossils.
Trilobites were incredibly common during the Cambrian.
Trilobites were incredibly common during the Cambrian.
Look at these strange creatures from the Cambrian period.
I wonder if there were other complex organisms before the Cambrian.
The strata here clearly date back to the Cambrian.
We are studying the transition from the Precambrian to the Cambrian.
We are studying the transition from the Precambrian to the Cambrian.
The Cambrian saw a massive increase in biodiversity.
Is this rock sample from the Cambrian or the Ordovician?