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What are 3 facts about the mesozoic era?
The Mesozoic Era spanned from approximately 252 million years ago to 66 million years ago. Dinosaurs evolved and dominated the Earth during this era, with a wide variety of different species. The Mesozoic Era ended with a mass extinction event that wiped out the dinosaurs, believed to have been caused by a meteor impact.
What is the plant life on the Paleozoic Era?
The Paleozoic Era lasted 291 million years from the start of the Cambrian Period 542 million years ago until the end of the Permian Period 251 million years ago. Life of every kind went through great changes. The first evidence for plants predate the Paleozoic Era. Evidence that resembles green algae is found in rocks in the late Proterozoic Eon but exact classification into the Kingdom Plantae has not been confirmed. The first confirmed plants come from the Cambrian Period(542 - 488.3Ma). They take the form of simple green algae possibly of the order Dasycladales. These normally live in aquatic environments. It is during this period that we find evidence for the first plants on land. Fossil species closely related to the river plant Charales have been found in rocks from around this age. It was not until the Ordovician Period(488.3 - 443.7Ma) that the first Embryophytes evolved. Embryophytes is the clade of plants that contain most of the plants that you would recognise. These plants are primarily land plants although some species are considered semi- aquatic. Fossils from this period are fragmentary and exact classification is difficult. The Silurian Period(443.7 - 416Ma) gives us the first complete fossils of Embroyophytes. This is the time in history that we can confirm wide spread land plants. Species such as the extinct Lycopodiophyta Baragwanathia longfolia become common in terrestrial environments. During the Devonian Period(416 - 359.2Ma) we see the first evidence of the first trees. The earliest known trees the Wattieza & Archaropteris were closly related to ferns unlike most modern trees. They grew up into huge forests pumping vast amounts of oxygen into the atmosphere. By the Carboniferous Period(359.2 - 299Ma) these forests covered the land. Most of the coal on the planet are the remains of these huge forests. The levels of oxygen in the atmosphere were much higher than today as a result of these forest. It was this that allowed the arthropods to become massive. The first conifers appear at this time in history. The Permian Peroid(299 - 251Ma) saw the formation of the super-continent Pangaea. The interior of this continent was dominated by huge deserts. The changes in environment caused huge changes in the plants that dominated the land. By the end of the Permian the fern like trees, that had dominated for millions of years, had been replaced by conifers as the most common trees on the planet. The end of the Paleozoic Era was marked by the planets worst extinction event, the Permian-Triassic Extinction or "The Great Dying". It shows a clear decline in the conifer species and the beginning of the Mesozoic Era a resurgence of the Lycopdhates. It was not until the Mesozoic Era that plants that dominate most environments on land today such as flowering plants and grasses evolved.
Define geologic time?
The geological time scale organizes a long period of time.
What order the following eras in order from most recent to earliest?
Modern era Postmodern era Contemporary era
If you double a concentration of a reactant then the rate of the reaction doubled The order with respect to the reactant is?
The reaction is first order with respect to the reactant. In a first-order reaction, the rate is directly proportional to the concentration of the reactant. Doubling the concentration of a reactant will result in a doubling of the reaction rate.
What is the order of the eras?
PRECAMBRIAN(Precambrian)FIRST INVERTEBRATES PALEOZOIC(Cambrian)FIRST FISHES(Ordovician)FIRST LAND PLANTS(Silurian)(Devonian)FIRST AMPHIBIANS.(Carboniferous,Mississippian,Pennsylvanian)FIRST REPTILES (Permian) MESOZOIC(Triassic)FIRST DINOSAURS, MAMMALS, and BIRDS. (Jurassic)(Cretaceous)END OF DINOSAURS CENOZOIC(Tertiary)BIRTH OF JESUS(Quaternary)DEATH OF JESUS
What are 3 facts about the mesozoic era?
The Mesozoic Era spanned from approximately 252 million years ago to 66 million years ago. Dinosaurs evolved and dominated the Earth during this era, with a wide variety of different species. The Mesozoic Era ended with a mass extinction event that wiped out the dinosaurs, believed to have been caused by a meteor impact.
What are all the ages of the Earth and their order?
The ages of Earth are like several stages of the Earth. If you research about each of the stages I have typed below you may get more information, I recommend Wikipedia (If it has it). It starts like this: Pre-Cambrian, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Eocene, Oligocene, Miocene, Pliocene, Pleistocene and Holocene. Note: Some of the ages are named after particular places. Other sites might mention some other information or some ages between some of the ones I've given you.
What are the phanerozoic periods in order?
The Phanerozoic Eon is divided into three major eras: the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era. The Paleozoic Era is further divided into six periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. The Mesozoic Era is divided into three periods: Triassic, Jurassic, and Cretaceous. The Cenozoic Era is divided into two periods: Paleogene and Neogene.
What are the three time periods the dinosaurs live in?
Dinosaurs lived from the Triassic to the Jurassic to the Cretaceous Or Dinosaurs lived 150 - 65 million years ago, that was during the Triassic, Juassic and the Cretaceous periods.
What order does curumbian jurastic dervin triastic proterzoic?
It seems there might be a mix-up in the terms you've used. The correct geological time periods are the Cambrian, Jurassic, and Triassic, which are part of the Phanerozoic Eon. The Proterozoic is a separate eon that predates the Phanerozoic. If you need more specific information about any of these periods, please clarify!
Eras are divided into periods which can be further divided into?
Eras divide into periods and periods divide into epochs. The Palaeozoic Era is composed of the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods (in that order). The Mesozoic Era is divided into the Triassic, Jurassic and Cretaceous periods. The Cenozoic Era is divided into the Tertiary and Quaternary periods. The Tertiary period is divided into the Palaeocene, Eocene, Oligocene, Miocene and Pliocene epochs while the Quaternary period is divided into the Pleistocene and Holocene epochs. Note that eras are not the longest lengths of time. Eras may compose longer stretches of time known as eons/aeons.
What were the periods for the Late Triassic?
The Late Triassic epoch was a part of the Triassic period of the Mesozoic era. It was divided into, in chronological order, the Carnian, Norian, and Rhaetian ages.
What list places the divisions of the geologic time scale in order from longest to shortest?
The order of geologic time from smallest to largest is Phanerozoic, Proterozoic, Archean and Hadean (Deep Time). These four periods are called Eons which can be further subdivided into Eras, Periods and Epochs. Most people are more familiar with the periods such as Cambrian, Permian, Triassic, Jurassic and. Cretaceous and many more to numerous to mention. To learn more, Google geologic time scale.
How long were each of the 6 parts in the paleozoic era?
(In order from oldest period to youngest) Cambrian- 54 million years Ordovician- 44 million years Silurian- 28 million years Devonian- 57 million years Carboniferous- 60 million years Permian- 48 million years
When did the dinosaur inhabit the earth?
From the late Triassic period (on the order of 190 million years ago) through the Jurassic and Cretaceous periods until the mass extinction that occurred at the end of the Mesozoic Era, 65 million years ago. This means they were present on the earth for on the order of 125 million years, and for most of those millenia, they were the dominant life forms.
What is geolgic time?
Geologic time refers to the vast expanse of time that spans Earth's history, typically divided into eons, eras, periods, epochs, and ages. It provides a framework for understanding the events and changes that have occurred on Earth over billions of years, including the formation of rocks, continents, and life forms. Studying geologic time helps scientists unravel the planet's past and predict its future.
