When was the Glossopteris extinct?

298.9 million years ago

Subsequently, one may also ask, when did Glossopteris become extinct?

about 245 million years ago

Secondly, is Glossopteris extinct? The Glossopteridales are an extinct group of seed plants that arose during the Permian on the great southern continent of Gondwana. These plants went on to become a dominant part of the southern flora through the rest of the Permian, though they dwindled to extinction by the end of the Triassic Period.

In this manner, why did Glossopteris become extinct?

The Permian extinction was supposed to be caused by many volcanoes erupting in present Siberia, clouding the earth and killing much of life. 90 feet (30 meters) seed ferns wouldn't likely survive, especially now competition could come in and displace the fern.

How long did the Glossopteris live?

Despite its prevalence, the genus did not survive long after the break-up of Pangaea (about 200 million years ago, during the Triassic Period). As the continents drifted apart, the climate changed in the areas where Glossopteris had thrived, and all of the species died out.

Is Mesosaurus a dinosaur?

About Mesosaurus Mesosaurus is an extinct reptile which lived approximately 300 million years ago during the Early Permian Period. It was first discovered during the mid-19th century and was named by Francois-Louis Paul Gervais in 1864. The name of this reptile means “middle lizard” in Greek.

Why is Glossopteris evidence for continental drift?

Modern day representation of the Glossopteris. Possibly the most important fossil evidence found is the plant, Glossopteris. Now, the Glossopteris seed is known to be large and bulky and therefore could not have drifted or flown across the oceans to a separate continent.

Why is Glossopteris important?

Essentially, Glossopteris was restricted to the middle- and high-latitude parts of Gondwana during the Permian and was an important contributor to the vast Permian coal deposits of the Southern Hemisphere continents.

Where is Mesosaurus found?

Remains of Mesosaurus, a freshwater crocodile-like reptile that lived during the early Permian (between 286 and 258 million years ago), are found solely in Southern Africa and Eastern South America. It would have been physiologically impossible for Mesosaurus to swim between the continents.

What climate did Glossopteris grow?

Glossopteris flora. Glossopteris flora The fossil flora that succeeds the Permian glacial deposits of South Africa, Australia, South America, and Antarctica. It grew in a cold, wet climate, while the flora of North America and Europe existed under warm conditions.

When did Lystrosaurus live?

Lystrosaurus, extinct genus of about seven species of medium-sized heavily built animals that lived from the middle of the Permian Period (298.9 million to 251.9 million years ago) until early in the Triassic Period (251.9 million to 201.3 million years ago).

When did Pangea break up?

175 million years ago

Which direction has North America moved in the past 200 million years?

About 135 million years ago Laurasia was still moving, and as it moved it broke up into the continents of North America, Europe and Asia (Eurasian plate). Gondwanaland also continued to spread apart and it broke up into the continents of Africa, Antarctica, Australia, South America, and the subcontinent of India.

When was the Glossopteris discovered?

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. Glossopteris occurred in a variety of growth forms.

What is theory of continental drift?

Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.

How big is a Mesosaurus?

Mesosaurus, (genus Mesosaurus), early aquatic relative of reptiles, found as fossils from the Early Permian Period (299 million to 271 million years ago) in South Africa and South America. Mesosaurus lived in freshwater lakes and ponds. Elongated and slim, it measured about 1 metre (3.3 feet) long.

How does Mesosaurus support continental drift?

For this reason, the existence of Mesosaurus helps support the theory of continental drift; that is, the now-well-attested fact that South America and Africa were joined together into the giant continent Gondwana 300 million years ago before the continental plates supporting them broke apart and drifted into their

What do the Glossopteris fossils?

Glossopteris fossils tell us that the continents especially Southern Africa, Australia, India and Antarctica which are now separated by wide oceans were once connected because the large seeds of this plant could not possibly travel a long journey by the wind or survive a rough ride through ocean waves.

What does Mesosaurus mean?

Mesosaurus (meaning "middle lizard") is an extinct genus of reptile from the Early Permian of southern Africa and South America. Along with the genera Brazilosaurus and Stereosternum, it is a member of the family Mesosauridae and the order Mesosauria.

Where was the Cynognathus found?

South Africa

What is significant about the fossils of Mesosaurus that were found?

Mesosaurus was significant in providing evidence for the theory of continental drift, because its remains were found in southern Africa, Whitehill Formation, and eastern South America (Melo Formation, Uruguay and Irati Formation, Brazil), two widely separated regions.

What evidence supports the idea that all the continents were once joined together?

The hypothesis of continental drift states that all the continents were once joined together in a single landmass and have since drifted apart. Describe the land features that provided evidence for Wegener's hypothesis. Mountain ranges in Africa and South America line up.