Table of Contents
Where were the fossil remains of Cynognathus found?
Cynognathus was as large as a modern wolf and lived during the early to mid Triassic period (250 to 240 million years ago). It is found as fossils only in South Africa and South America.
How did the Cynognathus go extinct?
As the climate became more arid, the plant species upon which the prey of Cynognathus fed died out, and a (food) chain of events followed. Cynognathus became extinct sometime in the middle Triassic, about 215 million years ago.
How long ago did Cynognathus live?
247.2 million years ago – 228 million years ago (Anisian – Carnian)Cynognathus / Lived
Where are Lystrosaurus fossils found?
Lystrosaurus was part of the Dicynodontia (an extinct group of mammal-like reptiles), part of the larger synapsid clade of vertebrates which includes living mammals. Its fossils have been discovered in Africa, India, and Antarctica.
What does the word Cynognathus mean?
Definition of Cynognathus : a genus of large carnivorous therapsid reptiles (suborder Theriodontia) that greatly resembled mammals in form, were presumably near the direct ancestral line of the true mammals, and are known chiefly from remains found in the Karroo formation of the Triassic.
How did the Lystrosaurus become extinct?
It’s likely that the planet cooled down for a time, then heated up into a devastatingly profound greenhouse. At the same time, all that carbon caused ocean acidification. The resulting climate changes ultimately killed off 95 percent of all species on Earth. But not Lystrosaurus.
Did Cynognathus lay eggs?
Paleontologists believe Cynognathus sported a thick coat of hair and may have given birth to live young (rather than laying eggs, like most reptiles); we know for a fact that it possessed a very mammal-like diaphragm, which enabled it to breathe more efficiently.
Can the Cynognathus swim?
Cynognathus and Lystrosaurus were land reptiles and were unable to swim. Grooves and rock deposits left by ancient glaciers are found today on different continents very close to the equator. This would indicate that the glaciers either formed in the middle of the ocean and/or covered most of the Earth.
How did Lystrosaurus go extinct?
Why the fossils of Lystrosaurus Mesosaurus and Cynognathus are found in places that are oceans apart?
Lystrosaurus fossils are only found in Antarctica, India, and South Africa. Similar to the land dwelling Cynognathus, the Lystrosaurus would have not had the swimming capability to traverse any ocean.
Who discovered Cynognathus?
Cynognathus was a mammal-like reptile which lived approximately 245 million to 230 million years ago during the Middle Triassic Period. It was first discovered in 1895 by British paleontologist Harry Seeley and was given its name the same year. This therapsid’s name means “dog jaw.”
What habitat did Cynognathus live in?
Click here.) Cynognathus (pronounced sy-nog-NAY-thus) was a cynodont (a mammal-like reptile, not a dinosaur) that was the size of a wolf. This therapsid lived on open plains during the early to middle Triassic period, roughly 230-245 million years ago.
Why do you think Lystrosaurus was found on 3 different continents?
Lystrosaurus fossils show that these creatures once lived on the landmasses of Africa, India, and Antarctica. land must have been connected for the animal to be on all three landmasses. They are known to be poor swimmers, which means they could not have swam from one landmass to another.
What did Cynognathus eat?
KannemeyeriaCynognathus / Eats
What two continents are the fossils of Mesosaurus and Cynognathus found?
º Look for all of the pieces with the fossil remains of Cynognathus and put them together first (South America and Africa).
Why did Lystrosaurus go extinct?
Which fossil type was found in South America Antarctica Africa and Australia?
The Glossopteris fossil is found in Australia, Antarctica, India, South Africa, and South America—all the southern continents. 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 the fossils of Lystrosaurus Mesosaurus and Cynognathus are found in places that are oceans apart?
Cynognathus and Lystrosaurus were reptiles that lived on land. Both of these animals were unable to swim at all. Their fossils have been found across South America, Africa, India, and Antarctica. Wegener thought that all of these organisms must have lived side by side.
When did the Mesosaurus go extinct?
around 260 million years ago
Mesosaurus lived during the early Permian Period, from 299 to around 260 million years ago. They died out before the massive, end-Permian extinction that killed off a large percentage of marine and terrestrial animals.
What fossils have been found in Antarctica?
Animal fossils Dinosaurs lived in Antarctica and are well known from the northern tip of the Antarctic Peninsula, although few have been described formally. They include ankylosaurs (the armoured dinosaurs), mosasaurs and plesiosaurs (both marine reptilian groups).
Why did Cynognathus go extinct?
As the climate became more arid, the plant species upon which the prey of Cynognathus fed died out, and a (food) chain of events followed. Cynognathus became extinct sometime in the middle Triassic, about 215 million years ago.
Where are Cynognathus fossils found?
Cynognathus fossils are found primarily in South Africa, Argentina, and Antarctica (although recently some fossils have been found in China).
Are humans related to Cynognathus?
It belonged to the group of mammal-like reptiles called therapsids, and more specifically a sub-group known as cynodonts (meaning ‘dog teeth’). Mammals evolved from another cynodont species, so while not a direct ancestor, we are indeed related. Based on fossils, Cynognathus was about one meter long, with a stocky build.
How was the body of Cynognathus constructed?
The body of Cynognathus was not massively constructed. The tail was short, and the limbs were tucked well under and close to the body, providing the potential for rapid and efficient locomotion.