Deltadromeus agilis, “Agile River Runner”; Illustration by C. Abraczinskas and P. Sereno


Type: theropod, meat eater
Age: 90 million years old
Height at hip: 8 feet
Length: 25 feet
Discovery site: Morocco, Africa


Deltadromeus was discovered in 1995 by Gabrielle Lyon. Deltadromeus has extraordinarily delicate and long limbs, making it one of the fastest dinosaurs to have existed.