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These are periods in the geologic timescale, spanning from 145 million years ago (Cretaceous) to 443 million years ago (Ordovician). Each period represents a distinct time in Earth's history characterized by specific events and changes in life forms, such as the extinction of dinosaurs in the Cretaceous period or the diversification of marine life in the Ordovician period.

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What order (from oldest to most recent) are Jurassic cretaceous Permian Triassic and Cambrian?

The correct order from oldest to most recent is Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, and Cretaceous. The Cambrian period marks the beginning of the Paleozoic Era, while the Cretaceous period is the last of the Mesozoic Era. The Permian and Triassic periods follow the Paleozoic and precede the Mesozoic, with the Jurassic and Cretaceous periods occurring afterward.


What are all the periods for all the eras?

Paleozoic Era: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian. Mesozoic Era: Triassic, Jurassic, Cretaceous. Cenozoic Era: Paleogene (Paleocene, Eocene, Oligocene), Neogene (Miocene, Pliocene), Quaternary (Pleistocene, Holocene).


What period came first Jurassic cretaceous or triassic?

jurassic The Triassic was the earliest period of the Mesozoic, followed by the Jurassic then the Cretaceous. The Cretaceous was of the greatest duration.


Fossil of dinosaurs are found in Cretaceous rock but not in tertiary rock?

This statement is not accurate. Fossils of dinosaurs have been found in both Cretaceous and Tertiary rock layers. The Cretaceous period ended around 66 million years ago, and the Tertiary period followed, lasting until about 2.6 million years ago. Dinosaurs lived during the Mesozoic Era, which includes the Triassic, Jurassic, and Cretaceous periods.


When paleontologist refer to the Big five to what are they referring?

The "Big Five" in paleontology refers to the five major mass extinction events that have significantly shaped the history of life on Earth. These events are the Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, and Cretaceous-Paleogene extinctions. Each of these events led to substantial biodiversity loss and dramatic changes in ecosystems, influencing the evolution of surviving species. The study of these extinctions helps scientists understand the dynamics of biological crises and recovery.

Related Questions

What are the major subdivisions of geologic times?

The major subdivisions are the Precambrian, Palaeozoic, Mesozoic and Cenozoic, which are subdivided into Archean and Proterozoic (Precambrian), Cambrian, Ordovician, Silurian, Devonian, Carboniferous (or Missisipian and Pennsylvanian in the US) and Permian (Palaeozoic), Triassic, Jurassic and Cretaceous (Mesozoic) and Tertiary and Quaternary (Cenozoic). For a graphical representation, see http://geomaps.wr.usgs.gov/socal/geology/geologic_history/images/geologic_time_scale.jpg


What are the areas on the geologic time scale?

Paleozoic Era- Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian Mass Extinction (Permian-Tertiary) 248 mya Mesozoic Era- Triassic, Jurassic, Cretaceous Mass Extinction (K-T) 65 mya Cenozoic- Tertiary, Quaternary


What was before Triassic Period?

Carboniferous Silurian Ordovician Devonian Cambrian Pre Cambrian


What are the extinction of animals in the very distant past?

There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.


In what geologic time period did the Triassic Jurrassic and Cretaceous occur?

That is easy, the first is precambrian time, next you get the paleozoic era, which has Cambrian, ordovician, silurian, denovonian, carbonferious periods, Next you get the mesozoic era which contains the next three, which are triassic, jurrasic, and cretacous periods. Lasty you get the Cenozoic era which contains the last two which are the tertiary, and the quaternary!


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 the next 2 letters in the series q t c j t p p m d s?

The next two letters are 'O' and 'C'. They are the first letters of the periods and systems in geologic time, from most recent to oldest. Quaternary, Tertiary, Cretaceous, Jurassic, Triassic, Permian, Pennsylvanian, Mississippian, Devonian, Silurian. The next two are Ordovician and Cambrian.


What are all the periods for all the eras?

Paleozoic Era: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian. Mesozoic Era: Triassic, Jurassic, Cretaceous. Cenozoic Era: Paleogene (Paleocene, Eocene, Oligocene), Neogene (Miocene, Pliocene), Quaternary (Pleistocene, Holocene).


How many major extinction events have occurred during the Earth's history?

There have been five major extinction events during Earth's history. These events are known as the Ordovician–Silurian, Late Devonian, Permian–Triassic, Triassic–Jurassic, and Cretaceous–Paleogene extinction events. Each event resulted in a significant loss of biodiversity and had profound impacts on the evolution of life on Earth.


What period came first Jurassic cretaceous or triassic?

jurassic The Triassic was the earliest period of the Mesozoic, followed by the Jurassic then the Cretaceous. The Cretaceous was of the greatest duration.


Did the earth experience over a dozen great mass extinction?

there were 11 mass extintions.1 Precambrian(Paleozoic)2 Cambrian,3 Ordovician,4 Silurian,5 Devonian,6 Carboniferous,7 Permian.(Mesozoic)8 Triassic,9 jurassic,10 Cretaceous.(Cenozoic)11 tertiary, 0 quaternary/today.


What were the 5 major extinction events in earth history?

They are the end-Ordovician extinction, end-Devonian extinction, end-Permian extinction, the Triassic extinction, end-Cretaceous extinction.