How Do You Spell UPPER JURASSIC?

Pronunciation: [ˌʌpə d͡ʒjʊɹˈasɪk] (IPA)

The correct spelling of the geological period "Upper Jurassic" is pronounced as /ˈʌpər dʒuːˈræsɪk/. The word "upper" refers to the higher or later part of the Jurassic period, which followed the Middle Jurassic and preceded the Cretaceous period. The spelling of this word is important in the field of geology as it identifies a distinct time period in the Earth's history. Accurate spelling and pronunciation allow for consistency in communication among scientists and researchers.

Meaning and Definition
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UPPER JURASSIC Meaning and Definition

  1. Upper Jurassic refers to the higher portion of the Jurassic Period, a geological time period that lasted from approximately 201 to 145 million years ago. The Upper Jurassic is the latest stage of the Jurassic Period, specifically encompassing the time period from around 163 to 145 million years ago.

    This period was characterized by significant geological and evolutionary events. During the Upper Jurassic, the Earth's climate was generally warmer and more humid than in earlier periods, leading to prosperous marine and terrestrial ecosystems. The supercontinent Pangaea continued to break apart, resulting in the opening of the Central Atlantic Ocean.

    In terms of paleontology, the Upper Jurassic is marked by the dominance of dinosaurs. Numerous iconic dinosaur species existed during this period, including the long-necked sauropods and the fearsome theropods like the Allosaurus. The first birds, small mammals, and flowering plants (angiosperms) also made their appearance in the latter part of the Upper Jurassic.

    Stratigraphically, the Upper Jurassic is divided into various stages and zones based on various rock formations and fossil records. These subdivisions, such as the Oxfordian, Kimmeridgian, and Tithonian stages, are used by geologists and paleontologists to better understand the sequence of events and the biodiversity of this period.

    In summary, the Upper Jurassic refers to the later part of the Jurassic Period, characterized by a warm climate, the dominance of dinosaurs, and important geological and evolutionary events.

Etymology of UPPER JURASSIC

The word "Upper Jurassic" is a geological term used to describe a specific period in Earth's history.

Etymologically, the term can be broken down into two parts:

1. "Upper": In geological stratigraphy, the term "upper" is used to refer to higher or later parts of a particular geological time period. It is derived from the Old English word "upp", meaning higher or more elevated. This term is used to indicate the later part of the Jurassic period.

2. "Jurassic": The term "Jurassic" refers to a geological period that occurred approximately 201 to 145 million years ago, during which diverse forms of life flourished. It derives its name from the Jura Mountains, a range that extends between France and Switzerland, where rocks from this period were first extensively studied.