Agrosaurus (AG-roh-SAWR-us; “field lizard”) is a genus of herbivorous dinosaur whose classification has been a subject of much scientific debate. Originally thought to have lived during the Early Jurassic period in Australia, the fossils attributed to Agrosaurus are now believed by many paleontologists to have come from England and likely belong to a different, already […]
Agujaceratops (ah-GOO-hah-SEH-rah-tops; “Agua horn-face”) is a genus of chasmosaurine ceratopsid dinosaur that lived during the Late Cretaceous period, approximately 77 million years ago. Its fossils were discovered in the Aguja Formation in Texas, USA, which is how it got its name. Agujaceratops was first identified as a distinct genus in 2006 by paleontologists Spencer G.
Agustinia (ah-gus-TEEN-ee-uh; “Agustin’s lizard”) is a genus of sauropod dinosaur that lived during the Early Cretaceous period, about 116 to 100 million years ago, in what is now Patagonia, Argentina, South America. The name honors Agustin Martinelli, who discovered its fossils. Agustinia was first named and described by paleontologist José Bonaparte in 1999, initially as
Ahshislepelta (AH-shiss-leh-PEL-tah; “Ahshisłpah’s shield”) is a genus of armored dinosaur known as an ankylosaurid. It lived during the Late Cretaceous period, about 75 million years ago, in what is now New Mexico, USA. The name refers to the Ahshisłpah Wash, a geological feature in the area where its fossils were discovered, combined with the Greek
Ajkaceratops (EYE-kuh-SEH-ruh-tops; “Ajka horned face”) is a genus of small ceratopsian dinosaur that lived during the Late Cretaceous period, about 86 to 84 million years ago. Its fossils were discovered in what is now Hungary. The name “Ajkaceratops” refers to Ajka, a town near the fossil site, and “ceratops,” which means “horned face” in Greek,
Ajnabia (AJ-nah-BEE-ah; “Foreign Wanderer”) is a genus of small hadrosaurid, or “duck-billed,” dinosaur that lived during the Late Cretaceous period, about 66 million years ago, in what is now Morocco, North Africa. The name Ajnabia comes from the Arabic word “ajnabi,” meaning “foreigner” or “stranger,” and “Odysseus” refers to the Greek hero known for his
Ajnabia Ajnabia (AJ-nah-BEE-ah; “Foreign Wanderer”) is a genus of small hadrosaurid, or “duck-billed,” dinosaur that lived during the Late Cretaceous period, about 66 million years ago, in what is now Morocco, North Africa. The name Ajnabia comes from the Arabic word “ajnabi,” meaning “foreigner” or “stranger,” and “Odysseus” refers to the Greek hero known for
Alamosaurus (AL-uh-mo-SAWR-us; “Ojo Alamo lizard”) is a genus of titanosaurian sauropod dinosaur that roamed what is now southwestern North America during the Late Cretaceous period, approximately 70 to 66 million years ago. Its name refers to the Ojo Alamo Formation in New Mexico where its first fossils were discovered by paleontologist John B. Reeside Jr.
Alaskacephale (uh-LASS-kuh-SEF-uh-lee; “Alaska head”) is a genus of pachycephalosaurid dinosaur that lived during the Late Cretaceous period, approximately 70 to 69 million years ago. Its fossils were discovered in the Prince Creek Formation of Alaska, USA. The name refers to the location of its discovery and the characteristic thickened skull common to its group, derived
Alaskacephale Alaskacephale (uh-LASS-kuh-SEF-uh-lee; “Alaska head”) is a genus of pachycephalosaurid dinosaur that lived during the Late Cretaceous period, approximately 70 to 69 million years ago. Its fossils were discovered in the Prince Creek Formation of Alaska, USA. The name refers to the location of its discovery and the characteristic thickened skull common to its group,
