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The Mesozoic period (roughly 180MYA) was a period when much change was happening in the Earth's continental arrangement. The final stage of the break up of the supercontinent Pangaea is generally considered to have taken place in this period. Land and sea were different to how we see them today. Pangaea was on the onset of forming 2 smaller supercontinents called Laurasia and Gondwana. The Atlantic Ocean had not yet formed. The Himalayas were not there. It was a very different picture to what we see today. Have a look at this page for further details concerning the break up of Pangaea. http://en.wikipedia.org/wiki/Pangaea
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∙ 17y ago
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∙ 12y agoThroughout the early Paleozoic, the Earth's landmass was broken up into a substantial number of relatively small continents.
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What are two reptiles returned to the sea during the mesozoic era?
icthyaurs
What lived in the mesozoic era?
A whole host of non-dinosaurian animals lived during the Mesozoic, including insects, cephalopods such as belemnites and ammonites, mammals (including extinct orders such as the multituberculates), many types of reptiles (snakes evolved during the Mesozoic, and marine reptiles such as the plesiosaurs, pliosaurs, ichthyosaurs and mosasaurs lived as well, in the air there were pterosaurs) and amphibians (including the last of the temnospondyls such as Koolasuchus). The Mesozoic boasted great diversity in the animal kingdom, comparable to the present day.
How was the tethys sea formed in India?
Tethys sea was formed in the Mesozoic era (current era is Cenozoic) about 50-80 million years ago. It was located in the region where the Indian state of Kashmir lies. It was formed due to collision of the Indian and Eurasian tectonic plates, and subsequent draining of the sea/lake.
In what geologic time period did the tethys sea occur?
The TethysOcean was an ocean that existed between the continents of Gondwana and Laurasia during the Mesozoic era before the opening of the Indian Ocean.
What are facts about the mesozoic era?
Because the Diapsid reptiles (Dinosaurs in Particular) were seen as the dominant terrestrial life forms during that time, being both the Apex predators, and the largest herbivores. Odds were if you saw a vertebrate on land, it was a reptile. Additionally, during that time, reptiles also took to the sea in a far greater variety than seen today (and got quite large as well, Pliosaurs were likely Apex predators in the sea as well) That period was seen as a high point for reptiles - mammals now occupy most of the niches that reptiles did in the mesozoic. Additionally, when that phrase was made, Birds were not considered to be a highly derived/specialized reptile, further increasing the apparent contrast between reptile abundance now, and the much greater reptile abundance in the mesozoic. .... Although when that phrase was coined, the "proto-mammal" synapsids were considered to be reptiles, with the more advanced synapsids being called "mammal like reptiles" (they are no longer considered reptiles) So I must wonder why the term didn't originally refer to both the Permian and the Mesozoic. It must be the disparity in body forms - only during the mesozoic did reptiles take to the air, become apex predators at sea, and attain sizes unsurpassed by any other terrestrial life.
Did the british travel by land or sea?
Both. They traveled by land when they were on land, and by sea when traveling across continents, like to the colonies.
Is the bottom of the sea shaped like the land?
No
Do crustaceans live in the deep sea or on land?
they can live on both. Crabs live on land and sea like hermit crabs
Is there such thing as a lizard that lives in the water?
Yes, crocodiles, caimans, alligators, gavials, saltwater crocodiles, sea turtles, terapins, hellbenders, and marine iguanas, are some that live today. During the mesozoic era, many reptiles lived in the water, like plesiosaurs, placodonts, mosasaurs, sea turtles, nothosaurs, thalattosuchians ichthyosaurs, and more.
What event marks the end of both the Paleozoic Era and Mesozoic Era?
The Permian-Triassic (P-Tr) Extinction Event is widely recognised as the greatest extinction event on Earth. It is also known as the "Great Dieing".It occurred 251 million years ago marking the end of the Permian Period and the start of the Triassic Period.It also marks the end of the Paleozoic Era and the start of the Mesozoic Era. Estimates have suggested that 96% of marine species and 70% percent of land vertebrate species became extinct. It is also the only known mass extinction of insect with 56% of insect families and 83% of insect genera becoming extinct.Little is known of the cause of the mass extinction but theories range from meteorite impacts, to volcanism, to sea level fluctuations.
What environment is was home to the ammonites?
The curved shells of ammonites are common as fossils and, due to their distribution worldwide, were found i almost all of the mid-Devonian and Mesozoic era seas. They were sea creatures which lived between 240 - 65 million years ago.
What happened to many land and sea animals during Paleozoic era?
Many of the animals began to die off and became extinct.
