Ojo Alamo Formation

Quetzalcoatlus () is a genus of azhdarchid pterosaur that lived during the Maastrichtian age of the Late Cretaceous in North America. The type specimen, recovered in 1971 from the Javelina Formation of Texas, United States, consists of several wing fragments and was described as Quetzalcoatlus northropi in 1975 by Douglas Lawson. The generic name refers to the Aztec serpent god of the sky, Quetzalcōātl, while the specific name honors Jack Northrop, designer of a tailless fixed-wing aircraft. The remains of a second species were found between 1972 and 1974, also by Lawson, around from the Q. no

Alamosaurus (; meaning "Ojo Alamo lizard") is a genus of titanosaurian sauropod dinosaurs containing a single known species, Alamosaurus sanjuanensis, from the Maastrichtian age of the Late Cretaceous period in what is now southwestern North America. It is one of the few known titanosaurs to have inhabited North America after the nearly 30-million-year absence of sauropods from the North American fossil record ("sauropod hiatus") and probably represents an immigrant from South America.

Ojoceratops ( meaning "Ojo Alamo horned face") is a genus of ceratopsian dinosaur which lived in what is now New Mexico, United States. Ojoceratops fossils have been recovered from strata of the Ojo Alamo Formation (Naashoibito Member), dating to the late Cretaceous period (late Maastrichtian age, 66 million years ago). The type species is Ojoceratops fowleri.

Dineobellator (meaning Diné warrior, pronounced ) is a genus of dromaeosaurid theropod dinosaur from the Late Cretaceous (Maastrichtian age) Ojo Alamo Formation (Naashoibito Member) of New Mexico, United States. The genus contains a single species, Dineobellator notohesperus, known from a partial skeleton.

Glyptodontopelta (meaning "Glyptodon shield") is a monospecific genus of nodosaurid dinosaur from New Mexico that lived during the Late Cretaceous (lower to upper Maastrichtian, 69 to 66 Ma) in what is now the Naashoibito member of the Ojo Alamo Formation. The type and only species, Glyptodontopelta mimus, is known from numerous specimens that consist of osteoderms, a dentary, supraorbital and bone fragments. It was named in 2000 by Tracy Ford. Edmontonia australis is a junior synonym of Glyptodontopelta.

Ojoraptorsaurus is a dubious genus of oviraptorosaurian dinosaur from the late Cretaceous. Ojoraptorsaurus is only known from pubic bones found at the Naashoibito Member of the Ojo Alamo Formation dating to the late Maastrichtian, about 66 million years ago. It was first named by Robert M. Sullivan, Steven E. Jasinski and Mark P.A. van Tomme in 2011 and the type species is Ojoraptorsaurus boerei. The generic name combines a reference to the formation with a Latin raptor, "plunderer", and a Latinised Greek saurus, "lizard". The specific name honours oceanographer Arjan Boeré who found the speci

Mesodma is an extinct genus of mammal, a member of the extinct order Multituberculata within the suborder Cimolodonta, family Neoplagiaulacidae. It lived during the upper Cretaceous and Paleocene Periods of what is now North America. The earliest definitive record is from the late Santonian stage strata of the Straight Cliffs Formation. A single premolar tooth from the lower Cenomanian stage strata of the Cedar Mountain Formation has been tentatively assigned to this genus based on its similarity, but its describers noted that it is unlikely that Mesodma lived during that time.

Myledaphus is an extinct genus of guitarfish. It currently contains four valid species found in North America (M. bipartitus, M. pustulosus), South America (M. araucanus), and Central Asia (M. tritus). It is confirmed to have lived during the Late Cretaceous, with possible occurrences in the Paleocene and early Eocene. While the genus is mostly known from teeth, two partial skeletons of M. bipartitus have been found in the Dinosaur Park Formation of Alberta.

geologic formation in New Mexico, United States