Coelurosaurs are a group of dinosaurs that lived from the Jurassic period to the modern day.

Tyrannosaurus rex looked like a Carnosaur but was actually a coelurosaur
Facts
Coelurosauria, meaning "hollow tailed lizards", is the clade containing all theropod dinosaurs more closely related to birds than to carnosaurs. Coelurosauria is a subgroup of theropod dinosaurs that includes compsognathids, tyrannosaurs, ornithomimosaurs, and maniraptorans; Maniraptora includes birds, the only dinosaur group alive today. Most feathered dinosaurs discovered so far have been coelurosaurs; Philip J. Currie considers it probable that all coelurosaurs were feathered. In the past, Coelurosauria was used to refer to all small theropods, although this classification has been abolished.
In the Walking with...series
Walking with Dinosaurs
Time of the Titans
Ornitholestes is a coelurosaur that was menacing Diplodocus nests and was briefly seen hunting the other infants. It was last seen screeching at a creche of adolescent Diplodocus.
Giant of the Skies
Utahraptor and Iberomesornis are coelurosaurs.
Death Of A Dynasty
Tyrannosaurus and Dromaeosaurus

are both coelurosaurs. Birds also appeared at the end, albeit modern day ones.
Walking with Beasts
New Dawn
Gastornis is a coelurosaur.
Next of Kin
Live acted vultures w

ere featured.
Sabre-Tooth
Phorusrhacos is a coelurosaur.
Walking with Monsters
Walking with dinosaur footage at the end featured some coelurosaurs.
Chased by Dinosaurs
The Giant Claw

, Tarbosaurus, Mononykus, and Velociraptor are all coelurosaurs.
Sea Monsters
Episode One
A Tarbosaurus and raptors made a brief cameo in the intro.
Episode Three
Tyrannosaurus made a brief cameo.
Time map
Multiple coelurosaurs made cameos on the time map.
Walking with Dinosaurs: Inside Their World
Gallimimus is seen killed by a Tarbosaurus. It is also one of the viewable dinosaurs in the app. Both of these dinosaurs are coelurosaurs.