Paleocene
Học thuậtThân thiện
Definition
- Proper noun:
- The Paleocene: A geologic epoch within the Paleogene period, following the Cretaceous period and preceding the Eocene epoch. It is characterized as a time of recovery and diversification for mammalian life after the extinction of the non-avian dinosaurs.
Usage
- The term Paleocene is used as a proper noun to refer to a specific, defined interval in Earth's geological history. It is often preceded by the definite article "the."
- It is primarily used in scientific contexts such as geology, paleontology, and earth sciences.
Examples
- Proper noun:
- Fossils from the Paleocene show the rapid evolution of early mammals.
- The climate during the Paleocene was generally warm and stable.
Advanced Usage
- "Paleocene-Eocene Thermal Maximum (PETM)": A specific, brief period of intense global warming that occurred at the boundary between the Paleocene and Eocene epochs.
- Scientists study the PETM to understand potential effects of modern climate change.
Variants and Related Words
- Paleocene Epoch: The full formal name.
- Paleogene: The geological period which contains the Paleocene, Eocene, and Oligocene epochs.
- Paleoclimatology: The study of past climates, which includes research on the Paleocene climate.
Synonyms
- Early Paleogene: A broader term that can encompass the Paleocene epoch.
Noun
- from 63 million to 58 million years ago; appearance of birds and earliest mammals