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This bone constituted at the time the oldest pterosaur remains found, recognized, and described from North America. [2] Othniel Charles Marsh first named it as a species of Pterodactylus: [3] P. montanus, the specific name meaning "from the mountains" in Latin, but soon changed his mind and gave it a new generic name.
Pterodactylus (from Ancient Greek: πτεροδάκτυλος, romanized: pterodáktylos ' winged finger ' [2]) is a genus of extinct pterosaurs.It is thought to contain only a single species, Pterodactylus antiquus, which was the first pterosaur to be named and identified as a flying reptile and one of the first prehistoric reptiles to ever be discovered.
These were the first scientifically described pterosaur fossils from North America. [7] November – December 31st. Sir Richard Owen expressed astonishment at the North American discovery of pterosaurs exceeding the size of warm-blooded birds and mammals, given his interpretation of the group as typical cold blooded reptiles. [41] 1871
Most of the fossil remains of Cryodrakon belong to either young or subadult individuals, from which a wingspan of about 5 m (16 ft) could be estimated. However, much larger fossils have been unearthed, including an incomplete fifth cervical (neck) vertebra that measures 40 cm (1 ft 4 in). If complete, it could have measured at least 50 cm (1 ft ...
Quetzalcoatlus (/ k ɛ t s əl k oʊ ˈ æ t l ə s /) 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.
In 2014, physician Pedro Lucas Porcela Aurelio found the fossil in the town of Paraiso do Sul in Brazil's southernmost Rio Grande do Sul state. He donated it to a local university in 2021, kicking ...
Fossils of Tawa-like dinosaurs have also been found in South America, which has important indications about paleogeography. During the Early Jurassic Period, dinosaurs such as Dilophosaurus, Anchisaurus, Coelophysis (formerly known as Megapnosaurus), and the early thyreophoran Scutellosaurus lived in North America.
Cut marks found on giant armadillo fossils suggest the presence of early humans ... a period 19,000 to 26,000 years ago when two massive ice sheets covered the northern third of North America ...