Firstly remember that lengths of dinosaurs are estimates.
Not all dinosaurs are complete and even if they are, different assumptions about how much inter-vertebral cartilage they have effect the length estimate.
A T.rex specimen, nicknamed 'Sue' is very complete and estimated at about 12.8m long.
There may be fragmentary T.rex specimens that 'might' have been longer.
Trex was 40ft long, but it is not the biggest meat eating dionsaur
18 feet 6 inches (5.6 meters)
40 ft
A Trex.
A Tyrannosaurus rex's foot was quite large, measuring about 3 feet (0.9 meters) long and 2 feet (0.6 meters) wide. The foot had three main toes, each equipped with sharp claws, which helped the dinosaur support its massive weight and capture prey. Overall, the size of a T. rex foot contributed to its formidable presence as one of the largest land predators of its time.
An elephant is the largest mammal on land.
Such aspects of dinosaur behavior are not known.
Trex
Capitalize trex when you are using it as a proper noun, such as a specific thing or trademark.
trex
Yes
is trex decking safe for dogs?