Triassic cretaceous Jurassic sequence

2022-05-18 0 By

From first to last, the Triassic, Jurassic, cretaceous.1. The Jurassic is a geological period between the Triassic and Cretaceous. The Jurassic is the second period of the Mesozoic era, beginning with the Jurassic extinction event of the Triassic.Although the rock marks of this period are very clear and distinct, the exact dates of its beginning and end, like other ancient geological ages, cannot be determined with great precision.2, Paleozoic: Cambrian, Ordovician, Silurian, Devonian, carboniferous, Permian.Mesozoic: Triassic Jurassic Cretaceous.Cenozoic: Tertiary Quaternary period.3. When it comes to world history, it is common to hear that there are many different geological periods from the formation of the Earth to the present day.Archean, Proterozoic, Jurassic, Cretaceous, and so on.Since it is called geological time, it is naturally divided from the perspective of geology.Geologists and paleontologists, according to the age of the formation of the geological strata, the formation of four eras, 14 eras and 12 periods.According to the different measurement methods, it can be divided into relative geological time and absolute geological time.