CHANGES OF MAMMALS
The major changes in Mammals
The very first mammal appeared in the end of the Trassic period this mammal is know as Ezostrodon. Eozostrondon was about the size of a small rodent. This reptile like mammal was the fist egg laying mammal to feed it's offspring through lactation. This mammal also had qualities similar to many mammals from this era, such as its mammalian teeth. Some time later the Biarmosuchus rose , this was the first respectable sized mammal. This mammal was about the decently sized with the size of a large dog unlike many of the other mammal which were only the size of mice.The third change that has occurred with mammals involves the Mezazostrodon. This was the first mammal to give live birth that rose at the beginning of the mesozoic era. The Mezazostrodon also have fur and look a lot like a mouse about the same size as one as well.
The very first mammal appeared in the end of the Trassic period this mammal is know as Ezostrodon. Eozostrondon was about the size of a small rodent. This reptile like mammal was the fist egg laying mammal to feed it's offspring through lactation. This mammal also had qualities similar to many mammals from this era, such as its mammalian teeth. Some time later the Biarmosuchus rose , this was the first respectable sized mammal. This mammal was about the decently sized with the size of a large dog unlike many of the other mammal which were only the size of mice.The third change that has occurred with mammals involves the Mezazostrodon. This was the first mammal to give live birth that rose at the beginning of the mesozoic era. The Mezazostrodon also have fur and look a lot like a mouse about the same size as one as well.
Three Mammal fossils that prove Mammals evolution
Eozostrondon is the first fossil that lived during the Late Triassic and the early Jurassic period and fed its young through mothers milk. This mammal was more like a mammal-reptile since it doesn't give live birth, yet this one mammal was the start to all mammals! Next, is the Deltatheridium which roamed the earth nearly 80myn, this opossum-like quadruped was about 6 in. (15cm) long. The Deltatheridium had more canine like teeth, this made it more capable of eating meat and other proteins to help it survive. The third mammal fossil that show mammals evolving is the Jeholoden another quadrupedal organism. The Jeholoden was about 5inches ling it had relatively advanced grasping hands. What has evolved with this mammal is its hands since they are more capable of grasping and climbing to higher ground to get away from predators.
Eozostrondon is the first fossil that lived during the Late Triassic and the early Jurassic period and fed its young through mothers milk. This mammal was more like a mammal-reptile since it doesn't give live birth, yet this one mammal was the start to all mammals! Next, is the Deltatheridium which roamed the earth nearly 80myn, this opossum-like quadruped was about 6 in. (15cm) long. The Deltatheridium had more canine like teeth, this made it more capable of eating meat and other proteins to help it survive. The third mammal fossil that show mammals evolving is the Jeholoden another quadrupedal organism. The Jeholoden was about 5inches ling it had relatively advanced grasping hands. What has evolved with this mammal is its hands since they are more capable of grasping and climbing to higher ground to get away from predators.