| 释义 |
K-T
K-Tadj. Of or relating to the boundary between the Cretaceous and Tertiary periods, characterized by a mass extinction in which all nonavian dinosaur species perished and by a layer of rock enriched with iridium thought to have originated in one or more asteroid impacts.
[K, short for Cretaceous (used instead of C, because that letter is often used as an abbreviation of Cambrian) + Tertiary.]K-T
| Acronym | Definition |
|---|
| K-T➣Cretaceous-Tertiary |
|