| 释义 |
Paleocene
Pa·le·o·cene P0021900 (pā′lē-ə-sēn′)adj. Of, relating to, or being the epoch of geologic time from 66 to 56 million years ago, the oldest epoch of the Tertiary Period. It is characterized by the formation of the Rocky Mountains and by the appearance of placental mammals. See Table at geologic time.n. The Paleocene Epoch.paleocene (ˈpælɪəʊˌsiːn) adj (Geological Science) a variant spelling of PalaeocenePa•le•o•cene (ˈpeɪ li əˌsin; esp. Brit. ˈpæl i-)
adj. 1. noting or pertaining to an epoch of the Tertiary Period, from 65 million to 55 million years ago, a time of mammalian proliferation. n. 2. the Paleocene Epoch or Series. [1875–80] Pa·le·o·cene (pā′lē-ə-sēn′) The earliest epoch of the Tertiary Period, from about 65 to 58 million years ago, characterized by the appearance of placental mammals and the formation of the Rocky Mountains and Himalayas. See Chart at geologic time.Thesaurus| Noun | 1. | Paleocene - from 63 million to 58 million years ago; appearance of birds and earliest mammalsPaleocene epochTertiary, Tertiary period - from 63 million to 2 million years ago |
Translations
Paleocene
Paleocene[′pāl·ē·ə‚sēn] (geology) The oldest of the seven geological epochs of the Cenozoic Era, spanning 65 million to 55 million years ago. Comprising the Tertiary and Quaternary periods in modern usage, it is also the oldest of the five epochs constituting the Tertiary Period. It represents an interval of geological time (and rocks deposited during that time) extending from the termination of the Cretaceous Period of the Mesozoic Era to the dawn of the Eocene Epoch. MedicalSeePalaeocene epochPaleocene
Related to Paleocene: Paleocene epoch, OligoceneSynonyms for Paleocenenoun from 63 million to 58 million years agoSynonymsRelated Words |