How does fossil evidence provide evidence for evolution?
Fossils provide evidence for the evolutionary change through now extinct forms that led to modern species. For example, there is a rich fossil record that shows the evolutionary transitions from horse ancestors to modern horses that document intermediate forms and a gradual adaptation o changing ecosystems.
Which fossil is found in Gondwana?
Tetrapod fossils from the Early Permian have only been found in Laurasia but they became common in Gondwana later during the Permian.
How is Gondwana coal formed?
Gondwana Coal This coal was formed in carboniferous period between 600 to 300 million years ago. The coal obtained from the Gondwana formations is mainly bituminous and needs to be converted into Coke before it can be used in the iron and steel industry.
Which of the following fossil is the characteristic fossil of Upper Gondwana?
Glossopteris, genus of fossilized woody plants known from rocks that have been dated to the Permian and Triassic periods (roughly 300 to 200 million years ago), deposited on the southern supercontinent of Gondwana.
What is fossil evidence?
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.
What is Gondwana coal?
Gondwana Coalfields in West Bengal 11 % of the coal reserves. Darjeeling and Jalpaiguri are the chief producing districts. RANIGANJ is the largest coalfield of West Bengal. Raniganj == Barddhaman, Bankura and Purulia districts; Small part of this field is in Jharkhand state. The coal here is non-coking steam coal.
Why is Gondwana important?
Economically, the Gondwana rocks are the biggest source of COAL deposits in India. Besides this black gold, Gondwana have yielded good quality building stones, clays and iron ores of importance.
What do you know about the Gondwana supercontinent?
Gondwana, also called Gondwanaland, ancient supercontinent that incorporated present-day South America, Africa, Arabia, Madagascar, India, Australia, and Antarctica.
What is the importance of Gondwana?
What are the most famous fossils found in Gondwana?
“The most famous fossils are the Gondwana flora such as the Glossopteris fern, a freshwater reptile called Mesosaurus, and a land reptile called Lystrosaurus. Gondwana existed as a single landmass for more than 300 million years.
What can we learn from Gondwana?
“Gondwana contains evidence for evolutionary changes in the very first complex animals, the very first fish, amphibians and reptiles,” says Meert. “The most famous fossils are the Gondwana flora such as the Glossopteris fern, a freshwater reptile called Mesosaurus, and a land reptile called Lystrosaurus.
How long did Gondwana exist?
Gondwana existed as a single landmass for more than 300 million years. Because of its humongous size — it covered an area of 39,000,000 square miles (100,000,000 square kilometers) — and because the continents moved a lot during that time, Gondwana experienced many different climates.
How did Gondwana become Pangea?
So, it was a couple hundred million years of extremely slow continental car wrecks that created this beta version of Gondwana — later, about 300 million years ago, other land masses would join forces with it to form the giant ball of land we now know as Pangea.