Bonapartesaurus Bonapartesaurus (BOH-nuh-par-tay-SAWR-us; “Bonaparte’s lizard”) is a genus of hadrosaurid (duck-billed) dinosaur that lived during the Late Cretaceous period, approximately 70 million years ago, in what is now Patagonia, Argentina. The name honors the influential Argentine paleontologist José F. Bonaparte for his significant contributions to the study of South American dinosaurs. Bonapartesaurus rionegrensis, the only […]
Bonatitan: Profile of a Prehistoric Giant Bonatitan Bonatitan (boh-NAH-tie-tan; “Bonaparte’s titan”) is a genus of titanosaur sauropod dinosaur that lived during the Late Cretaceous period, approximately 75 to 70 million years ago. Its fossils were discovered in the Allen Formation in RÃo Negro Province, Argentina, in South America. The name Bonatitan honors the famous Argentine
Bonitasaura Bonitasaura (boh-NEE-tah-SAWR-ah; “La Bonita quarry lizard”) Bonitasaura is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, approximately 86 to 83 million years ago. Its fossils were discovered in the RÃo Negro Province of Patagonia, Argentina. The genus name refers to the “La Bonita” quarry, where its remains were first
Borealopelta Borealopelta (BOR-ee-al-oh-PEL-tah; “Northern Shield”) is a genus of nodosaurid ankylosaur dinosaur that lived during the Early Cretaceous period, approximately 112 to 110 million years ago. Its fossils were discovered in what is now Alberta, Canada. The first and most famous specimen of Borealopelta was found accidentally in 2011 by a mining machine operator at
Borealosaurus: Profile of a Prehistoric Giant Borealosaurus Borealosaurus (BOR-ee-AL-oh-SAWR-us; “Northern Lizard”) is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, approximately 95 to 90 million years ago. Its fossils were discovered in the Sunjiawan Formation in Liaoning Province, northeastern China. The name Borealosaurus comes from the Greek word “Boreas,” meaning
Boreonykus Boreonykus (BOR-ee-oh-NYE-kus; “Northern claw”) is a genus of dromaeosaurid theropod dinosaur that lived during the Late Cretaceous period, about 73 million years ago, in what is now Alberta, Canada. The name comes from the Greek words “boreos” meaning north, referring to its discovery location in a northern latitude, and “onykhos” meaning claw, a well-known
Borogovia: Profile of a Prehistoric Giant Borogovia Borogovia (BOR-oh-GO-vee-ah; “Borogove creature”) is a genus of troodontid theropod dinosaur that lived during the Late Cretaceous period, approximately 70 million years ago, in what is now Mongolia. The name Borogovia comes from the “borogoves,” fantastical, thin, shabby-looking birds in Lewis Carroll’s poem “Jabberwocky.” This small dinosaur was
Bothriospondylus: Profile of a Prehistoric Giant Bothriospondylus Bothriospondylus (BOTH-ree-oh-SPON-dih-lus; “excavated vertebra”) is a genus of sauropod dinosaur that lived during the Late Jurassic period, approximately 161 to 150 million years ago. Fossils attributed to this dinosaur have primarily been found in Europe, particularly in England and France, with some debated remains from other regions. The
Brachiosaurus: Profile of a Prehistoric Giant Brachiosaurus Brachiosaurus (BRACK-ee-ow-SAWR-us; “arm lizard”) is a genus of sauropod dinosaur that lived during the Late Jurassic period, approximately 154 to 150 million years ago. Its fossils have been found primarily in the Morrison Formation of North America. The name Brachiosaurus comes from Greek words meaning “arm lizard,” referring
Brachyceratops Brachyceratops (BRAH-kee-SEH-rah-tops; “Short-horned face”) is a genus of ceratopsian dinosaur that lived during the Late Cretaceous period, approximately 74 million years ago, in what is now Montana, North America. The name comes from the Greek words “brachys” (short), “keras” (horn), and “ops” (face). Brachyceratops was first described by paleontologist Charles W. Gilmore in 1914
