The fossil record

A fossil record is a group of fossils that have been analyzed and have been chronologically organized. It also states that the fossils are found in layers of sedimentary.    Fossil Records show the age of organisms, how they evolved, and how some species have gone extinct. The fossil record shows that the T-rex and other dinosaurs went extinct because of a meteor called the KT meteor.

Moros Intrepidus (moros)

Moros was the earliest form of a T-rex. It is also the smallest ancestor of a T-rex, being only about 170 pounds in weight and less than 5 feet tall. But don't let its short size fool you, being its nickname is the "Harbringer of doom". It could

achieve fast speeds 

and hunt down much 

larger herbivores such as

the stegosaurus. Not a ton

more is known about this 

creature, because it was 

only discovered in 2019. 

Tarbosaurus Bataar (Tarbosaurus)

The Tarbosaurus is the closest known relative to the T-rex. The funny thing about this dinosaur, is its arms are even shorter than the T-rex! It was a lot bigger than its predecessor, being about 11,000 pounds at full size and being about and being about 39 feet long.It's skull is longer and more proportional 

compared to the T-rex. When looked at its

skull, its eye sockets are farther back which

most likely meant for a less binocular vision

for the Tarbosaurus. Some paleontologists

have even thought that a Tarbosaurus was

just a juvenile T-rex.