Ouranosaurus: Profile of a Prehistoric Giant Ouranosaurus Ouranosaurus (oo-RAH-noh-SAWR-us; “Brave Lizard”) Ouranosaurus is a genus of iguanodontian dinosaur that lived during the Early Cretaceous period, about 112 million years ago, in what is now Niger, Africa. The name comes from the Tuareg word “ourane,” meaning brave or valiant, and the Greek word “sauros,” meaning lizard. […]
Overosaurus: Profile of a Prehistoric Giant Overosaurus Overosaurus (OH-ver-oh-SAWR-us; “Overo lizard”) is a genus of aeolosaurin titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, approximately 86 to 84 million years ago (Campanian stage). Fossils of Overosaurus were discovered in the Anacleto Formation in Neuquén Province, Patagonia, Argentina. The dinosaur was named and described
Oviraptor: The Misunderstood Egg Thief Oviraptor Oviraptor (OH-vih-RAP-tor; “egg thief”) is a genus of oviraptorid theropod dinosaur that lived during the Late Cretaceous period, approximately 75 million years ago. Its fossils have been discovered in the Gobi Desert of Mongolia. The name Oviraptor was given by paleontologist Henry Fairfield Osborn in 1924, based on a
Oxalaia: Profile of a Prehistoric Giant Oxalaia Oxalaia (ok-shah-LIE-ah; “Named after Oxalá, a West African and Afro-Brazilian deity”) is a genus of large spinosaurid theropod dinosaur that lived during the Late Cretaceous period, approximately 98 to 95 million years ago (Cenomanian stage), in what is now northeastern Brazil. The name honors Oxalá, an important orixá
Ozimops: Profile of a Modern Australian Free-Tailed Bat Ozimops Ozimops (OZ-ih-mops; “Australian Mops bat”) is a genus of molossid (free-tailed) bat that lives in the modern era, primarily in Australia, with some species extending into Indonesia and Papua New Guinea. The name reflects its Australian (“Ozi”) distribution and its relation to Mops, another bat genus.
Ozraptor: Profile of Australia’s Middle Jurassic Predator Ozraptor Ozraptor (OZ-rap-tor; “Australian plunderer”) is a genus of theropod dinosaur that lived during the Middle Jurassic period, specifically the Bajocian stage, approximately 170 to 168 million years ago, in what is now Western Australia. The name Ozraptor comes from “Oz,” a common nickname for Australia, and “raptor,”
Pachycephalosaurus: Profile of a Prehistoric Giant Pachycephalosaurus Pachycephalosaurus (PAK-ee-SEF-uh-low-SAWR-us; “thick-headed lizard”) is a genus of pachycephalosaurid dinosaur that lived during the Late Cretaceous period, specifically the Maastrichtian age, about 70 to 66 million years ago. Its fossils have been discovered in western North America, including states like Montana, South Dakota, and Wyoming. The name Pachycephalosaurus
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Pachyrhinosaurus: Profile of a Prehistoric Giant Pachyrhinosaurus Introduction Pachyrhinosaurus (PACK-ee-rye-no-SAWR-us; “Thick-nosed lizard”) Pachyrhinosaurus is a genus of centrosaurine ceratopsid dinosaur that lived during the Late Cretaceous period, approximately 73.5 to 69 million years ago. Fossils of this herbivore have been discovered in what are now Alberta, Canada, and Alaska, USA. The name Pachyrhinosaurus, derived from
Pachysauriscus: Profile of a Prehistoric Giant Pachysauriscus (PAK-ee-SAWR-iss-kus; “Little thick lizard”) is a genus of sauropodomorph dinosaur from the Late Triassic period, approximately 220 to 200 million years ago. The original fossils thought to belong to this dinosaur were found in Germany. The name Pachysauriscus was established in 1901 by R. W. Shufeldt as a
Pachysaurus: Profile of a Prehistoric Giant Pachysaurus Pachysaurus (PAK-ee-SAWR-us; “Thick Lizard”) is a genus of pachycephalosaurid dinosaur that lived in North America during the Late Cretaceous period, approximately 76 to 72 million years ago. The name Pachysaurus, derived from Greek words meaning “thick lizard,” aptly describes its most distinctive feature: a remarkably thick, bony dome
