Regaliceratops Regaliceratops (REH-gah-lih-SAIR-uh-tops; “Royal Horned Face”) is a genus of horned dinosaur, known as a ceratopsian, that lived in what is now Alberta, Canada, during the Late Cretaceous period, about 68.5 to 67.5 million years ago. Its name comes from the Latin word “regalis,” meaning royal, because of the large, crown-like bony frill at the […]
“`html Regnosaurus: Profile of a Prehistoric Giant Regnosaurus Regnosaurus (REG-no-SAWR-us; “Regni lizard”) is a genus of herbivorous dinosaur that lived during the Early Cretaceous period, approximately 140 to 136 million years ago, in what is now England. The name refers to the Regni, an ancient Celtic tribe that inhabited Sussex, the region where its fossils
“`html Revueltosaurus: Profile of the Triassic Archosaur Imposter Revueltosaurus Revueltosaurus (re-VWEL-toh-SAWR-us; “Revuelto lizard”) Revueltosaurus is an extinct genus of herbivorous pseudosuchian archosaur that lived during the Late Triassic period, approximately 228 to 208 million years ago. Its fossils have been discovered in what is now the southwestern United States, including New Mexico, Arizona, and Texas.
Rhabdodon: Profile of a Prehistoric Giant Rhabdodon Rhabdodon (RAB-doh-don; “Fluted Tooth” or “Rod Tooth”) is a genus of rhabdodontid ornithopod dinosaur that lived during the Late Cretaceous period, approximately 84 to 66 million years ago. Fossils of this herbivore have been discovered in several European countries, including France, Spain, Romania, Austria, and Hungary. The name
“`html Rhoetosaurus: Profile of a Prehistoric Giant Rhoetosaurus Rhoetosaurus (REE-toh-SAWR-us; “Rhoetus’s lizard”) is a genus of sauropod dinosaur that lived during the Middle Jurassic period, approximately 170 to 160 million years ago, in what is now Queensland, Australia. The name refers to Rhoetus, one of the Giants from Greek mythology, highlighting the dinosaur’s large size.
Riabininohadros Riabininohadros (Ree-ah-BEE-nee-noh-HAD-ross; “Riabinin’s hadrosaur”) is a genus of hadrosauroid dinosaur that lived during the Late Cretaceous period, specifically the late Maastrichtian stage, about 70 to 66 million years ago. Its fossil remains have been discovered in the Crimean Peninsula. The name Riabininohadros honors the Russian paleontologist Anatoly Nikolaevich Riabinin, who first described the species
“`html Ricardoestesia Ricardoestesia (rih-KAR-doh-ess-TEE-zee-uh; “Richard Estes’ [tooth]”) is a genus of small theropod dinosaur known primarily from its distinctive teeth. It lived during the Late Cretaceous period, approximately 76 to 66 million years ago. Fossils of Ricardoestesia, mainly teeth, have been discovered in various locations across North America, with some potential finds in Europe and
“`html Rinchenia Rinchenia (RIN-chen-EE-ah; “Named for paleontologist Rinchen Barsbold”) is a genus of oviraptorid theropod dinosaur that lived during the Late Cretaceous period, approximately 70 million years ago, in what is now Mongolia. Fossils of Rinchenia were discovered in the Nemegt Formation of the Gobi Desert. The dinosaur was first named as a species of
“`html Rinconsaurus: Profile of a Prehistoric Giant Rinconsaurus Rinconsaurus (RIN-kon-SAWR-us; “Rincón lizard”) is a genus of titanosaurian sauropod dinosaur that roamed South America during the Late Cretaceous period, approximately 80 million years ago. Its fossils were discovered in the Neuquén Province of Argentina, near the town of Rincón de los Sauces, which gives the dinosaur
“`html Riojasaurus: Profile of a Prehistoric Giant Riojasaurus Riojasaurus (Ree-OH-hah-SAWR-us; “Rioja lizard”) is a genus of sauropodomorph dinosaur that lived during the Late Triassic period, approximately 227 to 210 million years ago. Its fossils were discovered in the Los Colorados Formation of La Rioja Province in Argentina, which is how it got its name. Paleontologist
