Rubeosaurus: Profile of a Prehistoric Giant Rubeosaurus Rubeosaurus (ROO-bee-oh-SAWR-us; “Bramble lizard”) is a genus of centrosaurine ceratopsid dinosaur that lived during the Late Cretaceous period, approximately 74.6 million years ago, in what is now Montana, USA. The name Rubeosaurus comes from the Latin “rubeus,” meaning bramble or thorny bush, referring to the spiky ornamentation on […]
Ruehleia: Profile of a Prehistoric Giant Ruehleia Ruehleia (ROO-lay-ah; “Rühle’s reptile”) is a genus of sauropodomorph dinosaur that lived during the Late Triassic period, about 216 to 203 million years ago, in what is now Germany. The name honors German paleontologist Hugo Rühle von Lilienstern, who made significant contributions to the study of Triassic reptiles.
Rugops: Profile of a Prehistoric Giant Rugops Rugops (ROO-gops; “Wrinkle Face”) is a genus of abelisaurid theropod dinosaur that lived during the Late Cretaceous period, specifically the Cenomanian stage, about 95 million years ago. Its fossils were discovered in what is now Niger, Africa. The name Rugops, derived from Greek words, means “wrinkle face,” referring
Rukwatitan: Profile of a Prehistoric Giant Rukwatitan Rukwatitan (ROOK-wah-TY-tan; “Rukwa Titan”) is a genus of titanosaurian sauropod dinosaur that lived during the middle part of the Cretaceous Period, specifically the Cenomanian stage, around 100 million years ago. Its fossils were discovered in the Rukwa Rift Basin in southwestern Tanzania, Africa. The name Rukwatitan refers to
Rutellum: An Armored Dinosaur from the Early Cretaceous Rutellum Rutellum (roo-TEL-um; “Little Spade”) is a genus of small, armored nodosaurid dinosaur that lived during the Early Cretaceous period, approximately 130 to 125 million years ago. Fossil remains of Rutellum have been discovered in what is now Western Europe, particularly in Spain. The name Rutellum refers
Saichania Saichania (SIGH-chah-NEE-ah; “Beautiful One”) is a genus of heavily armored ankylosaurid dinosaur that lived during the Late Cretaceous period, about 75 to 70 million years ago. Its fossils were discovered in the Gobi Desert of Mongolia by a Polish-Mongolian paleontological expedition in the early 1970s. The name Saichania comes from the Mongolian language and
Saltasaurus: Profile of a Prehistoric Giant Saltasaurus Saltasaurus (SAL-tuh-SAWR-us; “Lizard from Salta”) is a type of long-necked, plant-eating dinosaur called a titanosaur. It lived during the Late Cretaceous period, approximately 70 million years ago, in what is now Argentina, South America. Paleontologists José Bonaparte and Jaime Powell first described it in 1980. The discovery of
Saltopus: Profile of a Pioneering Triassic Reptile Saltopus Saltopus (SAL-toh-puss; “Hopping foot”) is a genus of small, early reptile, possibly one of the first dinosaurs or a close relative called a dinosauriform. It lived during the Late Triassic period, about 228 to 208 million years ago, in what is now Scotland. The name Saltopus was
Saltriovenator: Profile of a Prehistoric Giant Saltriovenator Saltriovenator (SAHL-tree-oh-VEH-nah-tor; “Saltrio hunter”) is a genus of theropod dinosaur that lived during the Early Jurassic period, specifically the Sinemurian stage, about 199 to 191 million years ago. Its fossils were discovered in what is now northern Italy. The first and only known specimen was found in 1996
Sanjuansaurus (san-HWAN-sore-us; “San Juan lizard”) is a genus of herrerasaurid theropod dinosaur that lived during the Late Triassic period, specifically the Carnian stage, around 231.4 million years ago. Its fossils were discovered in the Ischigualasto Formation in San Juan Province, Argentina, which is how it got its name. Sanjuansaurus was formally described by paleontologists Oscar
