This I have been pondering for a while now. The existence of a much larger mammal in the Mesozoic. For a long time scientists have said that the only mammals around were mouse sized creatures. Then they found this creature. https://en.wikipedia.org/wiki/Repenomamus
That find rewrote the textbooks. But I think that is the tip of the iceberg. For a long time it was stated that mammals remained small because of Dinosaurs and other giant reptiles keeping them small. But that can no longer be the case because turns out the Cenozoic had a lot more giant reptiles and theropods than we thought.
And this is just South America. Other Giants were around all over the world in the Cenozoic. And yet with very large creatures like this. Many of which actively hunted on land. Mammals got larger. Which begs the question. Is there a very large mammal from the Mesozoic that has just not been discovered yet. Something Wolf sized living in the Northern more colder climates of the planet during that time. I for one think such a mega mammal exists. it just has not been discovered yet. What are your thoughts on the matter.
That find rewrote the textbooks. But I think that is the tip of the iceberg. For a long time it was stated that mammals remained small because of Dinosaurs and other giant reptiles keeping them small. But that can no longer be the case because turns out the Cenozoic had a lot more giant reptiles and theropods than we thought.
And this is just South America. Other Giants were around all over the world in the Cenozoic. And yet with very large creatures like this. Many of which actively hunted on land. Mammals got larger. Which begs the question. Is there a very large mammal from the Mesozoic that has just not been discovered yet. Something Wolf sized living in the Northern more colder climates of the planet during that time. I for one think such a mega mammal exists. it just has not been discovered yet. What are your thoughts on the matter.