Did you know that numerous species of dinosaurs have been found in North America? A vast number of fossils have been uncovered in the United States, Canada and the other countries that make up North America. Rare teeth and footprints from the Middle-Late Triassic Pekin Formation of North Carolina were the earliest examples of dinosaurs found on this continent. Dinosaurs from the Late Triassic Period are more recognizable and easier to identify leading to the discovery of North American species like Tawa, Chindesaurus, Gojirasaurus, and Coelophysis.<\/p>\n
The only prehistoric period that did not see dinosaurs in North America was the Middle Jurassic. The Late Jurassic Period was much more populated by dinosaurs. Several states in America have areas of the Late Jurassic Morrison Formation, which is known as the most fertile source of dinosaur fossils in existence. This formation stretches from Colorado, Wyoming, Utah, and Montana down to New Mexico, Texas, and Oklahoma. If you’re curious about dinosaurs that roamed the United States and surrounding areas millions of years ago, keep reading! Here’s a look at some of the most notable dinosaur species found in North America.<\/p>\n
The unique Acrotholus<\/a> dinosaur was discovered in the fertile Milk River Formation that stretched from Alberta, Canada to Montana and Kansas. This dinosaur is known for its sizeable dome-shaped head and bipedal movement. Research shows that it used its sturdy dome head in combat with other dinosaurs.<\/p>\n
The Alamosaurus dinosaur<\/a> came from the Late Cretaceous Period and originated in the southern part of North America. This creature went extinct roughly 66 million years ago. Alamosaurus was discovered in 1922 in the Ojo Alamo Formation in New Mexico.<\/p>\n
Another dinosaur species discovered in Alberta, Canada is the Albertonykus<\/a>. This dinosaur lived 70 million years ago during the Upper Cretaceous Period. Its name is Greek for Alberta Claws. Fossils indicate that this dinosaur walked on two legs and survived on a diet of termites.<\/p>\n
Discovered in 1908 in the Morrison Formation of Wyoming, the Alcovasaurus<\/a> lived in the United States during the Late Jurassic Period. It was initially classified as a stegosaurus, but researchers later identified it as a new species. In 2016, it was renamed Alcovasaurus.<\/p>\n
The Anzu dinosaur<\/a> was named after a Mesopotamian bird-like demon. This avian-esque dinosaur lived in North America during the Late Cretaceous period roughly 66 million years ago. Anzu was discovered in the Maastrichtian Hell Creek Formation in areas of South Dakota and Montana.<\/p>\n
In 2013, a new genus of dinosaur was discovered in Big Bend National Park located in southwest Texas. Named Bravoceratops<\/a>, this dinosaur lived in North America over 70 million years ago. It originated in the Late Cretaceous Javelina Formation.<\/p>\n
The most common giant sauropod found in North America is the Camarasaurus<\/a>. These fossils were found in the Morrison Formation areas of Utah and Colorado. Researchers have estimated that the Camarasaurus dates back to the Late Jurassic Period and roamed North America around 155 million years ago.<\/p>\n
The Cathetosaurus<\/a> lived in North America during the Upper Jurassic Epoch. It roamed the United States more than 93 million years ago. Cathetosaurus dwelled in a large river biome. More than 120 different Cathetosaurus specimens have been discovered since 1988.<\/p>\n
Getting its name from the Greek words for horn and lizard, the Ceratosaurus<\/a> was discovered in Garden Park, Colorado in 1884. This carnivorous dinosaur was present in North America during the Late Jurassic Period. The first Ceratosaurus skeleton found is the most complete fossil in existence. About sixteen separate Ceratosaurus specimens have been uncovered.<\/p>\n
Coelurus<\/a> is a member of a clade of animals that are more closely related to birds than dinosaurs. This dinosaur lived in North America during the Late Jurassic Period roughly 155 million years ago. The Coelurus gets its name from the Greek words for “hollow” and “tail.”<\/p>\n
One look at the Deinonychus<\/a>, and you can see why its name means “terrible claw.” This dinosaur has large, curved claws on its hind feet, similar to other raptors. Discovered in Billings, Montana in 1931, Deinonychus lived in the United States during the Cretaceous Period roughly 115 million years ago.<\/p>\n
Dracorex<\/a> was discovered in 2006 in the Hell Creek Formation in South Dakota. It gets its name from the famous Harry Potter book series. Its full name is Dracorex hogwartsia<\/em>, which means “Dragon King of Hogwarts.” This herbivore lived during the Late Cretaceous Period, over 83 million years ago.<\/p>\n
Dyoplosaurus<\/a> was found in the lower levels of the Dinosaur Park Formation area of Alberta, Canada in 1924. Its name means “double-armored lizard.” Paleontologists believe this dinosaur lived in North America during the Late Cretaceous Period. Only one Dyoplosaurus specimen has been discovered.<\/p>\n
Epanterias<\/a> is a type of theropod dinosaur that was discovered in the Morrison Formation of Garden Park, Colorado in 1878. This dinosaur was present in North America during the Late Jurassic Period. Paleontologists date Epanterias back 163 million years. The name comes from the Greek word for “buttressed,” referring to the shape of the Epanterias’ vertebrae.<\/p>\n
Fruitadens<\/a> fossils were first discovered in 2010. This dinosaur’s name means “Fruita tooth,” referencing Fruita, Colorado, where the fossils were initially found. Like many other dinosaur species, Fruitadens was located in the Morrison Formation of Colorado. Fruitadens Lived in North America during the Upper Jurassic Period more than 145 million years ago.<\/p>\n
In 2010, Glishades<\/a> was discovered in the Two Medicine Formation of Montana. Glishades date back roughly 75 million years ago to the Late Cretaceous Period. Because its fossils were found in sedimentary strata, it was given the name Glishades, which roughly translates from Latin to “concealed in the mud.”<\/p>\n
Gojirasaurus<\/a> was discovered in 1981 in the Cooper Canyon Formation in New Mexico. Experts place this dinosaur in the Late Triassic Period, approximately 228 million years ago. Its name translates to “Godzilla lizard.” Gojirasaurus was named after the movie character Godzilla; a giant lizard made famous in Japanese movies.<\/p>\n
Getting its name from the Greek words for “large lizard,” Hadrosaurus was present in North America in the Late Cretaceous Period. Hadrosaurus<\/a> most likely lived here about 80 million years ago. The only Hadrosaurus specimen that has been found in a skeleton and part of a skull uncovered in the Woodbury Formation in New Jersey.<\/p>\n
Hypacrosaurus’ name in Greek means “near the highest lizard.” It got its name because it was almost as large as the iconic Tyrannosaurus Rex. Hypacrosaurus<\/a> was discovered in 1913 in Alberta, Canada. Paleontologists date Hypacrosaurus 67 million years back to the Late Cretaceous Period.<\/p>\n
This dinosaur roamed North America 78 million years ago during the Cretaceous Period. Judiceratops<\/a> fossils were discovered in Montana in 2013. Belonging to the chasmosaurine ceratopsid dinosaur family, Judiceratops is the oldest known species in that family.<\/p>\n
This small dinosaur was discovered in northeastern Arizona’s Kayenta Formation in 2010. Its name translates to “Kayenta hunter.” Kayentavenator<\/a> was present in North America during the Early Jurassic Period, roughly 145 million years ago.<\/p>\n
Latenivenatrix<\/a> is a member of the troodontid family. Its name means hiding huntress, and although remains were discovered in 1969, Latenivenatrix was given its name in 2017. This dinosaur was found in Alberta, Canada’s Dinosaur Mountain Park.<\/p>\n
Lythronax<\/a> was discovered in 2009 at the Grand Staircase-Escalante National Monument in southern Utah. This theropod lived in North America roughly 80 million years ago during the Late Cretaceous Period. Its name translates from Greek to mean “gore king.”<\/p>\n
Discovered in 1981 in Baja California, Magnapaulia<\/a> gets its name from Latin words meaning “broad tail.” This dinosaur was believed to have lived in the water based on its size and its tail shape. Magnapaulia had a tall and narrow tail that was most likely used to help it swim. Weak hip bones indicate that it would not have been able to support itself on dry land.<\/p>\n
Marshosaurus<\/a> was discovered in the Morrison Formation of Utah and Colorado in the 1960s. Classified as a theropod, this medium-sized dinosaur lived in North America during the Late Jurassic period. Like several other dinosaurs found in North America, Marshosaurus walked on two legs and had short arms.<\/p>\n
Moros<\/a> is a part of the Tyrannosaurus family, and it lived in Utah during the Late Cretaceous Period. It was discovered in 2013 but named in 2019 by paleontologists. This dinosaur is known as the oldest Tyrannosaurus found from the Cretaceous period.<\/p>\n
Just two specimens of Nanotyrannus have been discovered. Some paleontologists believe that Nanotyrannus is a juvenile species of the Tyrannosaurus rex. Nanotyrannus<\/a> was found in northwest Montana in 1942. This dinosaur was the last non-avian dinosaur to walk the Earth.<\/p>\n
The only evidence of Nedoceratops<\/a> is a single skull uncovered in 1868 in Wyoming. Paleontologists believe that this dinosaur originated in the Late Cretaceous Period. An intense debate has been ongoing about this dinosaur. Many experts consider it is its own species, but others think that Nedoceratops is a growth stage of the Triceratops.<\/p>\n
Ornithomimus<\/a> was discovered in the Denver Formation of Colorado in 1890. This theropod roamed North America during the Late Cretaceous Period more than 66 million years ago. The Ornithomimus dinosaur had long legs, long necks, and bird-like arms.<\/p>\n
This dinosaur gets its name from the Greek words for “thick-headed lizard.” Remains of Pachycephalosaurus<\/a> were found as far back as 1859 in Wyoming, Montana, and South Dakota. The Pachycephalosaurus lived in North America during the Late Cretaceous Period.<\/p>\n
Pectinodon<\/a> roamed North America more than 66 million years ago during the Late Cretaceous Period. The only evidence of this dinosaur that paleontologists have discovered is its teeth. The name Pectinodon comes from the Latin words for “comb” and “tooth,” referring to the teeth’s serrated edges.<\/p>\n
Rubeosaurus gets its name from the Greek words “bramble lizard.” This dinosaur was discovered in the upper Two Medicine Formation in Montana. The Rubeosaurus<\/a> lived in North America during the Late Cretaceous Period, more than 74 million years ago.<\/p>\n
Sauropelta<\/a>, which means “lizard shield,” is a nodosaurid dinosaur from the Early Cretaceous period. This dinosaur lived in North America during the Early Cretaceous Period nearly 110 million years ago. Many Sauropelta fossils have been found in the United States, especially in areas of Utah, Wyoming, and Montana.<\/p>\n
Also known as Talos sampsoni, this dinosaur is a troodontid that lived in North America during the Late Cretaceous Period. Talos<\/a> lived here roughly 76 million years ago. This dinosaur was discovered in Utah in 2008.<\/p>\n
The Tawa<\/a> was named after the Pueblo sun god and lived in North America during the Late Triassic Period. Fossils were discovered in New Mexico in 2004, but it was formally classified in 2009. The discovery of Tawa supports the theory that the earliest dinosaurs originated in what’s now South America and migrated from there around the world.<\/p>\n
Roughly 112 million years ago, Theiophytalia<\/a> lived in North America during the lower Cretaceous period. This dinosaur was discovered in the Morrison Formation of Colorado in 1878. Theiophytalia gets its name from the Greek words for “divine” and “garden.” The park where the only Theiophytalia fossil was found is known as Garden of the Gods.<\/p>\n
The most well-known dinosaur on this list has to be the Triceratops<\/a>. This dinosaur lived in North America during the Late Cretaceous Period roughly 68 million years ago. The Triceratops gets its name from the Ancient Greek words for “three-horned face.” Triceratops is unique in that it is one of the last known dinosaur species that are not related to birds.<\/p>\n
Discovered in the Judith River Formation area of Montana in 1876, Zapsalis<\/a> was a theropod dinosaur. This species lived in North America approximately 75 million years ago. Evidence of the Zapsalis was found only in teeth fossils.<\/p>\n
Zuul<\/a>, comically referred to as the “Destroyer of Shins,” was found in the Judith River Formation in Montana. Paleontologists uncovered Zuul’s complete skull and tail in 2017, making it the first of its kind to be discovered from these types of remains. The Zuul dinosaur lived in North America during the Late Cretaceous period roughly 75 million years ago. If the name sounds familiar, you’re right! It’s based on the villain Zuul from the movie Ghostbusters because they look similar.<\/p>\n