0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
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 7 periods that species have roamed on earth?
The earliest period when amphibious creatures crawled out of the ocean to walk on land would have been the Devonian Period. Following that were the Carboniferous, Permian, Triassic, Jurassic, Cretaceous,Tertiary and Quaternary Periods.
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
Scientists believe that humans arrived on earth during what period. A quaternary. B tertiary. C cretaceous. D triassic?
scientists belive human beings first developed on earth during :- A. quaternary.
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!
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.
What are the common abbreviations for the geologic time periods?
Some common abbreviations for geologic time periods are: Cenozoic (CE), Mesozoic (ME), Paleozoic (PE), Precambrian (PC), Quaternary (Q), Tertiary (T), Jurassic (J), Triassic (Tri), and Devonian (Dev).
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.
Is a astronaut a tertiary or quaternary?
quaternary
What are important Jurassic period events?
cute dinos went bye bye (:CommentDinosaurs went extinct on the C-T (Cretaceous/Tertiary) boundary. Not during the Jurassic Period.
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.
