Extinct Mammals

 

 

Here, you will see the wonders of the extinct mammals that rose after the dinosaurs, from the mighty smilodon to the small dwarf panda.   

 

 

 

Didelphodon

Didelphodon is an extinct mammal that lived during the Late Cretaceous period about 70-65 million years ago.  Didelphodon was a true mammal, like all mammals today, but true mammals had evolved from Mammal-Like Reptiles back in the Jurassic Period.  Didelpodon had a pouch, meaning it was an early marsupial.  It had sharp Opossum like teeth, a furry body, great sense of smell and eyesight and a large head for it's body size.  Didelphodon was just under 1m long, and weighed a couple of kilograms.  Despite it's size, mammals of this age never got much bigger than this, but after the Dinosaurs got extinct, mammals grew and evolved into many more varieties.

 

Didelphodon was a carnivore, with a variety of creatures on it's menu.  Didelphodon rarly hunted it's own food, it was a scavenger, and quite a good one at that.  It ate things like insects and bugs, small animals like small reptiles, carrion (meat from an already dead animal) and if given the opportunity dinosaur eggs, as long as the mother wasn't looking!

 

Didelphodon were mostly nocturnal, because during the day, danger was always lurking.  Late Cretaceous North America was full of Tyrannosaurus Rex, Dromaeosaurs, as well as stampedes of Hadrosaurs.

 

Didelphodon was discovered in 2001 by a man named Barry Brown in South Dakota.  Brown was searching for fossils when he stumbled upon a rock.  This rock was filled with fossils from a few other creatures, and then he found the Didelphodon jaw.

 

Interesting Facts:

 

  • Didelphodon are distant relatives of Opossums.
  • Didelphodon would burrow into nests of dinosaurs to steal eggs.

 

By Rob 

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Smilodon

Smilodon was the largest of the sabre-tooth cats.  It's sabre teeth were so large that it's name means 'knife tooth'.  Smilodon was about 1.2m tall at the shoulder and about 2m long at the most.  Smilodon lived in North and South America and lived from about 1 million years ago to 10,000 years ago. 

 

Smilodon was a carnivore, specially designed to take down large prey such as Toxidon.  They hunted prey by creeping up to them, leaping on them and giving them a bite to the windpipe, killing the animal that it ambushes.

 

Smilodon is famous not only because it was the largest sabre toothed cat, it is also famous because a large amount of skeletons have been found from their North American cousins.  The North American speicies name is Smilodon fatalis and the South American speicies name is Smilodon populator.  The South American speicies was a bit larger.   

 

Interesting Facts:

 

  • Smilodon became extinct because a shortage of food.
  • Smilodon hunted in packs. 

By Rob

Woolly Mammoth

The Woolly Mammoth is one of the most famous extinct animals of all time.  It was from the Elephant family but was well adapted to the cold weather of the ice age, having a very woolly body (to which it got it's name from.) and a thicker layer of fat than the modern day Elephant.  Both males and females had huge curved tusks.  They had a large head, a long trunk and small ears. (For elephant standards that is.) 

 

The Woolly Mammoth lived up to 10,000 (the end of the last ice-age) years ago and at their peak, they lived in Europe, Asia and North America.  Woolly Mammoths probably got extint by a combination of the following reasons:  the forests grew on the plains and they didn't have enough food to eat.  They probably could eat the trees but they didn't have enough nutrition to keep them going.  The world warmed up and it might have been too hot for them to survive, and overhunting by ice-age human.

 

Woolly Mammoth carcasses have been found and caveman drawing most definitely prove that they existed.

 

Woolly Mammoths were very graceful creatures, like helping their young when in trouble.  If a heard member was dying they would stay to care for them.  I wish Woolly Mammoths were here today, don't you?

 

Interesting Facts:

 

  • Woolly Mammoths were like Elephants, they protected their young from predators at all costs.     

By Rob

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