Dinosauria genera triassic period dinosaurs. Medical search. Frequent questions

Some scientists also believe that the fossils in the upper potions of the Los Colorados Formation could belong to the Jurassic period. (dinosaurfact.net)
The Zupaysaurus, Coloradisaurus and Lessemsaurus were the other dinosaur fossils that were discovered in the Los Colorados Formation along with the Riojasaurus. (dinosaurfact.net)
Jose F. Bonaparte is paleontologist who has worked extensively with dinosaur fossils in his native country of Argentina. (dinosaurfact.net)
Many fossils were initially ascribed to the Gojirasaurus but in the years to come, many of these fossils were attributed to different genera. (dinosaurfact.net)
But many of these fossils are ascribed to other dinosaurs currently. (dinosaurfact.net)
It was classified according to the features of the fossils which today have been ascribed to other dinosaurs. (dinosaurfact.net)
When the fossils were initially discovered, they were thought to belong to the raptor family of dinosaurs. (dinosaurfact.net)
Many vertebrate, invertebrate and plant fossils from the Triassic and Jurassic periods have been found in the Dockum Group. (dinosaurfact.net)
Most research conducted since the 1970s, however, has indicated that all dinosaurs were active animals with elevated metabolisms and numerous adaptations for social interaction.Since the first dinosaur fossils were recognized in the early 19th century, mounted fossil dinosaur skeletons have been major attractions at museums around the world, and dinosaurs have become an enduring part of world culture. (studyres.com)
In the almost 200 years since then, approximately 11,000 dinosaur fossils have been discovered. (37wan.club)
Let's take a look at where some of the largest dinosaur fossils were discovered. (37wan.club)
The fossils came from at least six dinosaurs, all of which were Titanosaurs , a new genus of sauropod. (37wan.club)
The size of the fossils led researchers to conclude this dinosaur may have been 40 feet tall and 80 feet long. (37wan.club)
The oldest unequivocal dinosaur fossils, dating to about 231 million years ago, are from Ischigualasto Provincial Park in northwestern Argentina, and include the genuses Herrerasaurus , Eoraptor and Eodromaeus . (livescience.com)
North American Dinosaurs - Alamosaurus lived in North America, Many fossils have been found in what is today the Southwestern United States . (dinosaurjungle.com)
Not a lot is known about the appearance of this dinosaur but whatever is known about this animal is based on the fossils that consisted of two upper jaws (maxillary) fragments, a lower fragment that consisted of three teeth, and four maxillary teeth. (kidadl.com)
Its fossils provide valuable insights into the transition from bipedal to quadrupedal locomotion in dinosaurs, a key evolutionary milestone. (thedinosaurs.org)

Dinosaurs are a diverse group of reptiles of the clade Dinosauria. (wikipedia.org)
Their earliest representatives are known from Northern Hemisphere localities but, by the end of the Jurassic Period, this clade of flying reptiles achieved a global distribution, as well as high levels of diversity and disparity. (researchgate.net)
The European records of Jurassic phytosaurs are also shown to be doubtful, suggesting that this clade was restricted to the Late Triassic. (blogspot.com)
Dinosaurs are archosaurs, a clade (different groups of animals that share a common ancestor) that includes crocodilians , pterosaurs , dinosaurs and birds. (livescience.com)
When Owen coined the name "dinosauria" in the 19th Century, only a handful of dinosaurs were in the clade, known from a few incomplete specimens. (gagebeasleyprehistoric.com)
It belongs to the Dinosauria, Theropoda, and Neotheropoda clade. (kidadl.com)

We continue into the Upper Triassic successions of Hopen Island, The geographical coverage is global. (docslib.org)

If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. (wikipedia.org)
The specimens were named so as many characters about the dinosaur were ambiguous at that point of time. (dinosaurfact.net)
The referred specimens of this species are also regarded as indeterminate, thereby removing the post-Triassic record of phytosaurs from Asia. (blogspot.com)
It is among the 15 biggest dinosaur specimens in the world. (37wan.club)
Mini Museum Age of Dinosaurs is a subject matter focused collection with 35 incredible specimens from across 185,000,000 years of the Mesozoic Era. (minimuseum.com)
In total, there are 35 specimens in the Age of Dinosaurs collection, making it our largest since the First Edition! (minimuseum.com)

These were features that were seen very prominently amongst the huge sauropods of the Jurassic period. (dinosaurfact.net)
The flora and fauna of the Los Colorados Formation have been crucial in understanding the dynamics of change between the Triassic and the Jurassic period. (dinosaurfact.net)
The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic Period and, consequently, they are considered to be modern feathered dinosaurs. (studyres.com)
During the Jurassic Period, the shifting continents compressed the Tethys to form an equatorial seaway stretching from today's Caribbean Islands to what is now the Himalayas. (minimuseum.com)
Diplodocus was a massive plant-eater (herbivore) that lived in the Jurassic period , 155 to 145 million years ago, in North America. (dinosaurjungle.com)
Ceratosaurus was a carnivore (meat-eater) that lived in North America, Africa, and possibly Portugal , during the late Jurassic period , about 156 to 145 million years ago. (dinosaurjungle.com)
It existed in the Early Jurassic period. (kidadl.com)
This dinosaur was known to have existed in the Early Jurassic period. (kidadl.com)

The term "dinosaurs" is a common name for an extinct group of reptiles that lived during the Mesozoic Era. (gagebeasleyprehistoric.com)
It is worth noting that not all prehistoric reptiles that lived during the Mesozoic Era were dinosaurs. (gagebeasleyprehistoric.com)
The flying reptiles ( pterosaurs ) and marine reptiles (such as plesiosaurs ) of the Mesozoic Era were not dinosaurs. (gagebeasleyprehistoric.com)
Sphenodontia is an order of lizard-like reptiles that includes only one living genus, the tuatara , and only two living species. (absoluteastronomy.com)
If you've ever seen Fantasia 's "Rite of Spring", you'll know that dinosaurs used to be popularly shown as slow, tail-dragging, stupid reptiles that went extinct due to their own incompetence. (obscuredinosaurfacts.com)
The earliest known proto-reptiles originated around 312 million years ago during the Carboniferous period, having evolved from advanced reptiliomorph tetrapods which became increasingly adapted to life on dry land. (hyperlinked.wiki)
Genetic and fossil data argues that the two largest lineages of reptiles, Archosauromorpha (crocodilians, birds, and kin) and Lepidosauromorpha (lizards, and kin), diverged near the end of the Permian period. (hyperlinked.wiki)
The lungs of some dinosaurs were more efficient than those of reptiles being complex, bird-like organs. (austhrutime.com)
Even though drawing it only took an hour, I spent another hour researching, because I'm not super familiar with weird Triassic reptiles. (obscuredinosaurfacts.com)

Most notably, the hip structure of the dinosaurs determined how they were placed within the two main groups ( Saurischia and Ornithischia ). (gagebeasleyprehistoric.com)
Diplodocus was a member of the Saurischia ('lizard-hipped') order of dinosaurs . (dinosaurjungle.com)

The Shuvosaurus is an archosaur organism of the Triassic period, related to the crocodilians. (dinosaurfact.net)
The classification of "dinosaur" above isn't totally accurate, for the creature discussed below is an archosaur , a member of the group that gave rise to dinosaurs, pterosaurs, and crocodilians. (whyevolutionistrue.com)

Case 3561 Anchisaurus Marsh, 1885 (Dinosauria, Sauropodomorpha): proposed conservation of usage by designation of a neotype for its type species Megadactylus polyzelus Hitchcock, 1865. (blogspot.com)

Now his research is focusing upon the origins, anatomy, taxonomy and systematics of various avemetatarsalian clades, including the pterosaurs, silesaurids and dinosaurs. (researchgate.net)
The pterosaurs first appear in the fossil record in the middle of the Late Triassic. (researchgate.net)
To place this individual in the phylogeny of dinosaurs and their ancestors, the authors did a computer analysis of 422 characters derived from these bones, and K. kely fell out in group B of the phylogeny below, which includes the dinosaurs and the pterosaurs (the relative size of this tiny species is shown to the right). (whyevolutionistrue.com)
In particular, the Cretaceous-Paleogene extinction event wiped out the pterosaurs , plesiosaurs , and all non-avian dinosaurs alongside many species of crocodyliforms , and squamates (e.g., mosasaurs ). (hyperlinked.wiki)

The fossil record demonstrates that birds are modern feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch. (wikipedia.org)
The systematic position of the unusual Late Jurassic dinosaur Chilesaurus diegosaurezi remains an area of real uncertainty. (researchgate.net)

The Gojirasaurus was a large dinosaur that was in existence in the middle Triassic period. (dinosaurfact.net)
The trampled bed of the cover of the Aiguilles Rouges Massif probably forms a megatracksite, which is Early or Middle Triassic in age. (blogspot.com)

They first appeared during the Triassic period, 231.4 million years ago, and were the dominant terrestrial vertebrates for 135 million years, from the start of the Jurassic (about 200 million years ago) until the end of the Cretaceous (66 million years ago), when the Cretaceous-Paleogene extinction event led to the extinction of most dinosaur groups (and three-quarters of plant and animal species on Earth) ending the Mesozoic Era. (studyres.com)
This places its existence in a time when dinosaurs were the dominant terrestrial vertebrates. (thedinosaurs.org)

Birds were therefore the only dinosaur lineage to survive the Cretaceous-Paleogene extinction event approximately 66 million years ago. (wikipedia.org)
Dinosaurs can be divided into avian dinosaurs (birds) and non-avian dinosaurs, which are all dinosaurs other than birds. (wikipedia.org)
Birds are feathered theropod dinosaurs and constitute the only known living dinosaurs. (wikipedia.org)
Old World quail is a collective name for several genera of mid-sized birds in the pheasant family Phasianidae. (absoluteastronomy.com)
Lagopus is a small genus of birds in the grouse subfamily. (absoluteastronomy.com)
Some birds survived the extinction event that occurred 66 million years ago, and their descendants continue the dinosaur lineage to the present day.Dinosaurs are a varied group of animals from taxonomic, morphological and ecological standpoints. (studyres.com)
While modern dinosaurs (birds) are generally small due to the constraints of flight, many prehistoric dinosaurs were large-bodied-the largest sauropod dinosaurs are estimated to have reached lengths of over 40 meters (130 feet) and heights of 18 meters (59 feet) and were the largest land animals of all time. (studyres.com)
Through the first half of the 20th century, before birds were recognized to be dinosaurs, most of the scientific community believed dinosaurs to have been sluggish and cold-blooded. (studyres.com)
Some meat-eating dinosaurs shrank over time and evolved into birds. (livescience.com)
Birds, which are one of the most diverse groups of vertebrates today, are technically dinosaurs. (gagebeasleyprehistoric.com)
Except for the birds that took to the skies, dinosaurs lived almost entirely on land. (gagebeasleyprehistoric.com)
Ceratosaurus was a Theropod - a member of a group of related bipedal dinosaurs that included the ancestors of birds (although Ceratosaurus was not itself an ancestor of birds). (dinosaurjungle.com)
One of Bakker's arguments was that there was compelling evidence dinosaurs were the equivalent of mammals and birds. (austhrutime.com)
As with mammals and birds the legs of dinosaurs were arranged beneath them (pillar-like) rather than the way in which the legs of lizards and crocodiles sprawl out sideways from the body. (austhrutime.com)

North American Dinosaurs - Diplodocus lived in North America. (dinosaurjungle.com)
North American Dinosaurs - Ceratosaurus lived in North America, Africa, and at least parts of Europe (there is some evidence that Ceratosaurus lived in Portugal ). (dinosaurjungle.com)

A mass extinction or extinction event is the phenomenon in which a large number of species of life on Earth become extinct in a relatively short period of time. (newworldencyclopedia.org)
In contrast, during a mass extinction event some 20 to 50 percent of all genera on Earth at that time may become extinct over a period of one million years or less. (newworldencyclopedia.org)
At the Permian - Triassic transition (the Permian-Triassic extinction event) about 95 percent of all marine species went extinct. (newworldencyclopedia.org)
Known as "The Great Dying," the Permian-Triassic Extinction Event is the largest extinction event in the history of the planet. (minimuseum.com)
the Triassic-Jurassic mass ota and the vegetation signals to the existing stratigraphy, providing an extinction event and the Toarcian anoxic event , which occurred 183 improved palaeogeographic understanding of the Late Triassic ecosys- million years ago. (docslib.org)

Many dinosaurs were quite small: Xixianykus, for example, was only about 50 cm (20 in) long.Although the word dinosaur means ""terrible lizard"", the name is somewhat misleading, as dinosaurs are not lizards. (studyres.com)
In 1842, the term "Dinosauria" (which translates to "terrible lizard") was coined by British anatomist and paleontologist Sir Richard Owens. (37wan.club)
This dinosaur, whose name intriguingly translates to "sinew lizard," was a remarkable specimen that roamed the Earth over a hundred million years ago. (thedinosaurs.org)

Scientists are still debating whether Nyasasaurus , a genus found in Tanzania that dates to about 240 million years ago, is also an early dinosaur or a dinosauromorph, a group that includes dinosaurs and their close relatives, said Steve Brusatte, a paleontologist at the University of Edinburgh in Scotland. (livescience.com)
In 1877, Othniel Charles Marsh (American paleontologist 1831-1899) described a new species of dinosaur based on very incomplete remains. (dinoanimals.com)

Initially, dinosaurs were not as diverse as the crocodile-like archosaurs they were living alongside, Brusatte noted. (livescience.com)
At the time of the Triassic - Jurassic transition, about 20 percent of all marine families as well as most non-dinosaurian archosaurs, most therapsids (except the order from which mammals descended), and the last of the large amphibians were eliminated. (newworldencyclopedia.org)
Dinosaurs 3 were archosaurs that were from small to gigantic that arise in the Triassic and survived until the close of the Cretaceous. (austhrutime.com)

However, this dinosaur belongs to a different family, the Carcharodontosauridae, within the broader group of Theropod dinosaurs. (thedinosaurs.org)

Tail elongation is a trait common to many sauropod dinosaurs. (researchgate.net)

Originally thought to be an unusual theropod, Chilesaurus has, since its first discovery, been suggested to either be a sauropodomorph dinosaur, an early diverging, 'transitional' ornithischian, or a more 'derived' neornithisc. (researchgate.net)
However, this specimen differs from phytosaurs in numerous aspects and is more likely a poorly preserved, indeterminate sauropodomorph dinosaur skull. (blogspot.com)

His areas of interest include ornithischian dinosaurs. (dinosaurfact.net)
The origin and evolutionary relationships of ornithischian dinosaurs are topics that have undergone a series of substantial revisions. (researchgate.net)

The classical "Big Five" mass extinctions identified by Raup and Sepkoski (1982) are widely agreed upon as some of the most significant: (1) End Ordovician (Ordovician-Silurian extinction), (2) Late Devonian (Late Devonian extinction), (3) End Permian (Permian-Triassic extinction), (4) End Triassic (Triassic-Jurassic extinction), and (5) End Cretaceous (Cretaceous-Tertiary extinction). (newworldencyclopedia.org)
Alamosaurus was one of the dinosaurs which died out during the Cretaceous-Tertiary mass extinction at the end of the Mesozoic Era . (dinosaurjungle.com)

It was larger than most Triassic theropods. (dinosaurfact.net)
It was named such probably due to its larger size as compared to other Triassic theropods. (dinosaurfact.net)

2012. New vertebrate trackway from the autochthonous cover of the Aiguilles Rouges Massif and reevaluation of the dinosaur record in the Valais, SW Switzerland. (blogspot.com)
This catastrophe was Earth's worst mass extinction, killing 53 percent of marine families, 84 percent of marine genera, and an estimated 70 percent of land species (including plants, insects, and vertebrate animals. (newworldencyclopedia.org)
The name and description of this dinosaur were done by Dong Zhinming who is considered to be the father of Chinese vertebrate paleontology. (kidadl.com)

Mark is also researching the behavior and life history of pachycephalosaurs (dome-headed dinosaurs) and ceratopsids (horned-dinosaurs), particularly Triceratops . (berkeley.edu)
This piece of art is a reconstruction of a late Maastrichtian (~66 million years ago) paleoenvironment in North America, where a floodplain is roamed by dinosaurs like Tyrannosaurus rex, Edmontosaurus and Triceratops. (livescience.com)

With more than 700 species of dinosaurs having been identified to date, scientists are still uncovering new evidence. (37wan.club)
In 1903, Elmer Samuel Riggs (American palaeontologist 1869-1963) re-examined the starting material of Apatosaurus and realized that both Brontosaurus and Apatosaurus had a huge number of similarities and essentially belong to the same species of dinosaurs. (dinoanimals.com)

These ideas were first raised in comments by Richard Owen in 1842, when he first conceived the idea of dinosaurs. (austhrutime.com)

They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. (wikipedia.org)
His doctoral project was 'The Origin and Early Evolution of Dinosaurs. (researchgate.net)

Furthermore, the pubis bone of the pelvic girdle and the tibia were found to belong to the coelophysoid dinosaur Coelophysis . (dinosaurfact.net)
It is speculated that these may also belong to other Triassic organisms. (dinosaurfact.net)
A reinterpretation of the Vieux Emosson ichnotaxa reveals that most tracks, if not all, belong to indeterminate chirotheriid and that no clear evidence of dinosaur footprints is observed. (blogspot.com)
Dinosaur -‭ ‬Any of the animals that belong to the Dinosauria group. (dinosaurencyclopedia.org)

Dinosaurs were likely warm blooded. (livescience.com)
Moreover, dinosaurs were likely warm blooded, according to research on their growth rates . (livescience.com)
This is often seen in larger cold blooded animals today,‭ ‬and is thought by many to be applicable to extinct animals such as the larger dinosaurs,‭ ‬giving them a metabolism approaching that of a warm blooded creature. (dinosaurencyclopedia.org)
When Jurassic Park was written, it wasn't yet widely accepted that dinosaurs were warm-blooded, erect-standing, and active animals. (obscuredinosaurfacts.com)
By 1990, many lines of evidence were pointing toward the warm-blooded hypothesis (see my book review of The Dinosaur Heresies for more details), but not only were there scientists who still favored the old hypothesis, this new view had not made it into the public awareness yet. (obscuredinosaurfacts.com)

When it comes to prehistoric animals, dinosaurs are arguably the most popular of them all, and for good reasons too. (gagebeasleyprehistoric.com)
The fossil record only preserves a small percentage of prehistoric animals , meaning the dinosaurs were probably more diverse than we are currently aware. (gagebeasleyprehistoric.com)

When dinosaurs first appeared in the Triassic period (251.9 million to 201.3 million years ago), they roamed the supercontinent of Pangaea . (livescience.com)

It was a top predator, able to prey on smaller dinosaurs thanks to its long talons and sharp claws. (37wan.club)
Having an upright posture also freed the hands, allowing dinosaurs such as iguanodonts to grasp branches and carnivorous dinosaurs to claw and kill prey, noted Gregory Erickson, a paleobiologist at Florida State University. (livescience.com)
When he compared modern endotherm communities, cats, and modern ectotherm predators, predatory lizards, he estimated that the endotherms consumed an average of 10 times the volume of prey species during the same time period than did the ectotherms. (austhrutime.com)
In the dinosaur communities from the Cretaceous he found the number of potential prey was much larger compared to the number of predators. (austhrutime.com)

Consequently, the huge quantities of methane emitted into the atmosphere and the oceans accelerated global warming and marked the negative δ 13 C spike observed in marine carbonates, documenting the onset of the mass extinction period. (wattsupwiththat.com)

and with it the work "A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda) - E. Tschopp, O. V. Mateus, R. B. J. Benson. (dinoanimals.com)

While dinosaurs were ancestrally bipedal, many extinct groups included quadrupedal species, and some were able to shift between these stances. (studyres.com)
Diplodocus was a Sauropod - a member of a group of related large quadrupedal herbivorous (plant-eating) dinosaur with long necks. (dinosaurjungle.com)

An Non-Archosaurian Archosauriform that is Actually a Dinosaur? (blogspot.com)
Dilophosaurus could have been doing something similar, or maybe even producing its own venom like the related Triassic archosauriform Uatchitodon is thought to have done. (obscuredinosaurfacts.com)

The closest is the Dinosaur Genera List, compiled by biological nomenclature expert George Olshevsky, which was first published online in 1995 and was regularly updated until June 2021. (wikipedia.org)
2021. Ontogeny and variation of the pachycephalosaurine dinosaur Sphaerotholus buchholtzae, and its systematics within the genus. (berkeley.edu)

The evolution and function of thyreophoran dinosaur scutes: implications for plate function in stegosaurs. (scienceblogs.com)
Nodosauridae is a group of thyreophoran dinosaurs characterized by a collar of prominent osteoderms. (bvsalud.org)

Patagonia, Argentina 2012 - Weighing the equivalent of 10 African elephants, Patagotitan mayorum, the 70-ton Titanosaur, is believed to be the largest dinosaur ever to live. (37wan.club)
It is believed that this discovery was the largest dinosaur ever unearthed in Europe. (37wan.club)

In Carpenter, K. (ed) The Carnivorous Dinosaurs . (scienceblogs.com)

The earliest examples of Ceratosaurus were found in Cleveland Lloyd Dinosaur Quarry in Utah and Dry Mesa Quarry in Colorado . (dinosaurjungle.com)

of dinosaur evolution are largely incomplete but can be inferred based on their character traits, the foundation of the phylogenetic (cladistic) classification system (Chapter 5). (studyres.com)
This classification places it among some of the most fearsome predators of the dinosaur world. (thedinosaurs.org)

Mark studies how dinosaur bones change with growth and how fossil bone is preserved. (berkeley.edu)
Still, the idea that non-avian dinosaurs were uniformly gigantic is a misconception based in part on preservation bias, as large, sturdy bones are more likely to last until they are fossilized. (studyres.com)
The ranch's owner suspected they were dinosaur bones and contacted paleontologists. (37wan.club)
Based on the proportions of their limb bones dinosaurs should have been able to run at speed, something lizards and crocodiles can't do. (austhrutime.com)

Let's embark on a journey back in time, specifically to the Early Cretaceous Period , where a colossal predator roamed the ancient landscapes. (thedinosaurs.org)
It thrived during the Early Cretaceous Period, specifically in the Albian Epoch, which spanned from 113.0 to 100.5 million years ago. (thedinosaurs.org)
It lived during the Early Cretaceous period , specifically from the Late Aptian to Albian epochs. (thedinosaurs.org)

This meat-eater lived during the late Triassic period, about 210 million years ago (mya). (wikipedia.org)

Elaborate display structures such as horns or crests are common to all dinosaur groups, and some extinct groups developed skeletal modifications such as bony armor and spines. (studyres.com)

The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms and genera that are no longer considered dinosaurs. (wikipedia.org)

Dinosaurs existed during the Mesozoic Era , approximately 250 million years ago. (37wan.club)
It returns to Age of Dinosaurs to mark the beginning of the Mesozoic Era. (minimuseum.com)
This issue of Palaeogeography Palaeoclimatology Palaeoecology is reconstruct the Early Triassic ( Olenekian ) faunas and the coastal river devoted to papers on Mesozoic ecosystems and is an outcome of the In- ecosystems, adding to knowledge of the aquatic and possibly, terrestrial ternational Geoscience Program (IGCP) 632. (docslib.org)
The reader is subsequently taken to the Triassic-Jurassic boundary The issue "Mesozoic ecosystems - climate and biotas" has been ex- successions of the Shanghai-Altay Mountain Ranges, including parts of tended to include the entire Mesozoic and the 12 contributions southern China (Sha et al. (docslib.org)
The Mesozoic world end-Triassic event, possibly owing to its ability to adapt to different eco- logical conditions. (docslib.org)

Junior synonymy is often subjective, unless the genera described were both based on the same type specimen. (wikipedia.org)

Using fossil evidence, paleontologists have identified over 500 distinct genera and more than 1,000 different species of non-avian dinosaurs. (studyres.com)
Discovered in the rugged terrains of Argentina, this Theropod dinosaur has captivated the imagination of paleontologists and enthusiasts alike. (thedinosaurs.org)
Jurassic Park was the first mainstream depiction of dinosaurs as birdlike, erect, active animals, and it changed how non-paleontologists thought of dinosaurs completely. (obscuredinosaurfacts.com)

An alligator is a crocodilian in the genus Alligator of the family Alligatoridae. (absoluteastronomy.com)
While exploring geological wonders and delicate treasures , we'll study the lords of air and sea and visit with each major family of dinosaurs, from birth to death and all the steps in between. (minimuseum.com)

Many scientists believe that it was related to the African dinosaur the Melanosaurus which is thought to have been in existence a few million years after the Riojasaurus. (dinosaurfact.net)
The Titanosaur reached 40 feet tall, had a long neck and lived over 95 million years ago during the late Cretaceous period. (37wan.club)
One of the last dinosaurs to exist, they lived in Argentina's forests 70 million years ago. (37wan.club)
Dinosaurs ruled the Earth for about 174 million years. (livescience.com)
Dinosaurs were a successful group of animals that emerged between 240 million and 230 million years ago and came to rule the world until about 66 million years ago, when a giant asteroid slammed into Earth . (livescience.com)
During the roughly 174 million years that dinosaurs existed, the world changed greatly. (livescience.com)
But by the time the asteroid hit at the end of the Cretaceous period (145 million to 66 million years ago), the continents were in approximately the same place they are today. (livescience.com)
Dinosaurs also played a significant role in shaping Earth's ecosystem for over 160 million years, so understanding their diversity helps us comprehend prehistoric times better. (gagebeasleyprehistoric.com)
Dinosaurs were the most dominant and most diverse animal group on the planet for about 160 million years. (gagebeasleyprehistoric.com)
Late Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. (theinfolist.com)
This was not a sudden event, with the period of decline lasting perhaps as long as 20 million years. (newworldencyclopedia.org)
End Triassic extinction (about 200 million years ago). (newworldencyclopedia.org)
A breathtaking collection, Age of Dinosaurs is paced across one hundred and eighty-five million years , with animals, plants, and continents alike set in motion, adrift in a world sea. (minimuseum.com)
Alamosaurus was a massive plant-eater (herbivore) that lived in the late Cretaceous period , between about 70 and 65 million years ago, in North America - in the region that is today the southwestern part of the United States . (dinosaurjungle.com)
The exact time period of the extinction of this species is not known, but the dinosaurs, in general, became extinct about 65 million years ago. (kidadl.com)
Bardack (1991) describes a fossil hagfish from the Carboniferous period, some 300 million years ago. (ericbutlerlab.com)

Ceratopsian -‭ ‬A group of dinosaurs that are characterised by having frills around their necks. (dinosaurencyclopedia.org)

Senior synonyms are generally used, except by special decision of the ICZN (see Tyrannosaurus), but junior synonyms cannot be used again for a different genus, even if deprecated. (wikipedia.org)

Have Scientists Found the Biggest Dinosaur? (37wan.club)

A remarkable group of thick-headed Triassic Period archosauromorphs with a wide, possibly Pangean distribution. (berkeley.edu)
During that time, dinosaurs evolved from a group of mostly dog - and horse -size creatures into the most enormous beasts that ever existed on land. (livescience.com)
The name dinosaur is a broad term to describe a large group of animals that includes several orders, families, genera, and species. (gagebeasleyprehistoric.com)
In this article, we'll explore the different types of dinosaurs, explaining their key features and providing examples for each group. (gagebeasleyprehistoric.com)
Ankylosaur -‭ ‬Any of the members of ankylosauria,‭ ‬the armoured group of ornithiscian dinosaurs that appeared from the Jurassic to the Cretaceous. (dinosaurencyclopedia.org)

Anatomy2

Organisms5

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Psychiatry and Psychology1

Phenomena and Processes5

Disciplines and Occupations2

Anthropology, Education, Sociology and Social Phenomena2

Information Science1

Geographicals1

Fossils17

Clade6

Upper Triassic1

Specimens6

Jurassic Period8

Reptiles9

Saurischia2

Crocodilians2

Sauropodomorpha1

Pterosaurs4

Late Jurassic2

Middle Triassic2

Dominant terrestrial vertebrates2

Birds14

North American Dinosaurs2

Extinction event5

Lizard3

Paleontologist2

Archosaurs3

Theropod dinosaurs1

Sauropod dinosaurs1

Sauropodomorph dinosaur2

Ornithischian dinosaurs2

Cretaceous-Tertiary2

Theropods2

Vertebrate3

Triceratops2

Species of dinosaurs2

18421

Evolution of dinosa2

Belong4

Warm blooded5

Prehistoric animals2

201.31

Prey4

Mass extinction1

Sauropoda1

Quadrupedal2

Archosauriform2

20212

Thyreophoran2

Largest dinosaur2

Carnivorous1

Earliest1

Classification2

Bones4

Early Cretaceous Period3

Meat-eater1

Extinct groups1

Nomen nudum1

Mesozoic5

Based on t1

Paleontologists3

Family2

Million16

Ceratopsian1

Tyrannosaurus1

Scientists1

Group5