| NOMBRE | time | era geológica, época, era, período | a major division of geological time |
|---|
| Sentido | A major division of geological time; an era is usually divided into two or more periods. | |
|---|---|---|
| Sinónimos | época, era, período | |
| Casos | Era Mesozoica, Era Secundaria, mesozoico, Mesozoico | From 230 million to 63 million years ago |
| Era Paleozoica, Era Primaria, paleozoico, Paleozoico | From 544 million to about 230 million years ago | |
| cenozoico, Cenozoico, era cenozoica, Era Cenozoica, Era Terciaria | approximately the last 63 million years | |
| Part de | eon, eón, evo | The longest division of geological time |
| Partes | periodo, período | A unit of geological time during which a system of rocks formed |
| General | tiempo geológico | The time of the physical formation and development of the earth (especially prior to human history) |
| Inglés | era, geological era | |
| Catalán | època, era | |
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