Pterodactyl, Pteranodon & Other Flying 'Dinosaurs' (2022)

Pterodactyl, Pteranodon & Other Flying 'Dinosaurs' (1)

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  • Sizes
  • Physical characteristics
  • Diet
  • Additional resources
  • Bibliography

Pterodactyl is the common term for the winged reptiles properly called pterosaurs, which belong to the taxonomic order Pterosauria, according to McGill University (opens in new tab). Scientists typically avoid using the term and concentrate on individual genera, such as Pterodactylus and Pteranodon.

There are at least 130 valid pterosaur genera, according to David Hone, a palaeontologist at Queen Mary University of London. They were widespread and lived in numerous locations across the globe, from China to Germany to the Americas.

Pterosaurs first appeared in the late Triassic Period and roamed the skies until the end of the Cretaceous Period (228 to 66 million years ago), according to the journal Zitteliana (opens in new tab). Pterosaurs lived among the dinosaurs and became extinct around the same time, but they were not dinosaurs. Rather, pterosaurs were flying reptiles.

Modern birds didn't descend from pterosaurs; birds' ancestors were small, feathered, terrestrial dinosaurs.

The first pterosaur discovered was Pterodactylus, identified in 1784 by Italian scientist Cosimo Collini, who thought he had discovered a marine creature that used its wings as paddles, according to the Geological Society of London (opens in new tab).

A French naturalist, Georges Cuvier, proposed that the creatures could fly in 1801, and then later coined the term "Ptero-dactyle" in 1809 after the discovery of a fossil skeleton in Bavaria, Germany. This was the term used until scientists realized they were finding different genera of flying reptiles. However, "pterodactyl" stuck as the popular term.

(Video) Pterosaurs 101 | National Geographic

Pterodactyl, Pteranodon & Other Flying 'Dinosaurs' (2)

Pterodactylus comes from the Greek word pterodaktulos, meaning "winged finger," which is an apt description of its flying apparatus. The primary component of the wings of Pterodactylus and other pterosaurs were made up of a skin and muscle membrane that stretched from the animals' highly elongated fourth fingers of the hands to the hind limbs, according to Mcgill University.

The reptiles also had membranes running between the shoulders and wrists (possibly incorporating the first three fingers of the hands), and some groups of pterosaurs had a third membrane between their legs, which may have connected to or incorporated a tail.

related links

A Brief History of Dinosaurs

Triceratops: Facts about the Three-horned Dinosaur

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Giganotosaurus: Facts about the 'Giant Southern Lizard'

Ankylosaurus: Facts About the Armored Dinosaur

Spinosaurus: The Largest Carnivorous Dinosaur

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Early research suggested pterosaurs were cold-blooded animals that were more suited to gliding than active flying. However, scientists later discovered that some pterosaurs, including Sordes pilosus and Jeholopterus ninchengensis, had furry coats consisting of hairlike filaments called pycnofibers, suggesting they were warm-blooded and generated their own body heat, according to the Chinese Science Bulletin (opens in new tab).

What's more, a study published in the journal PLOS ONE (opens in new tab) suggested pterosaurs had powerful flight muscles, which they could use to walk as quadrupeds (on all fours) like vampire bats and vault into the air. Once airborne, the largest pterosaurs (Quetzalcoatlus northropi) could reach speeds of over 67 mph (108 kph) for a few minutes and then glide at cruising speeds of about 56 mph (90 kph), the study found.

Sizes of pterosaurs

The smallest pterosaur, called Nemicolopterus crypticus, was discovered in the western part of China's Liaoning Province. It had a wingspan of only 10 inches (25 centimeters), according to a description of the animal, published in the journal Proceedings of the National Academy of Sciences (opens in new tab). The remains of this flying reptile revealed that over half of the length of its wing was occupied by a long finger, which anchored the membrane that made up the wing to the body, according to the Carnegie Museum of Natural History (opens in new tab).

Pterodactylus antiquus (the only known species of the genus) was also a comparatively small pterosaur, with an estimated adult wingspan of about 3.5 feet (1.06 meters), according to the journal Paläontologische Zeitschrift (opens in new tab). There was some confusion early on as to the size of the Pterodactylus, because some of the specimens turned out to be juveniles rather than adults.

The largest species that would have soared during the Jurassic period – 201.3 militon to 145 million years ago – was the Dearc sgiathanach. The remains of this pterosaur were found in Scotland’s Isle of Skye an revela the reptile had a wingspan of more than 8 feet (2.5 meters), according to the journal Current Biology (opens in new tab).

Pteranodon, discovered in 1876 by Othniel C. Marsh, was much bigger. It had a wingspan that ranged from 9 to 20 feet (2.7 to 6 m), according to Current Research in Earth Sciences (opens in new tab), a peer-reviewed bulletin of the Kansas Geological Survey. It's thought that Pteranodon spent its time soaring over open ocean in the hunt for fish. These pterosaurs would have been rarely seen on land and potentially spent their time on the water when not in the air, according to the American Museum of natural History (opens in new tab). This means that their wings would have had to generate enormous amounts of force to lift them from the water back into the sky.

Another large pterosaur was Coloborhynchus capito, which had a wingspan of about 23 feet (7 m). This discovery, described in the journal Cretaceous Research, followed an examination of a fossil that had been in the Natural History Museum of London since 1884.

One of the largest pterosaurs is believed to be Quetzalcoatlus northropi, whose wingspan reached 36 feet (11 m), according to the journal PLOS ONE (opens in new tab).

Pterodactyl, Pteranodon & Other Flying 'Dinosaurs' (3)

Physical characteristics

Given the large number of different types of pterosaurs, the physical characteristics of the winged reptiles varied widely depending on the genera.

Pterosaurs often had long necks, which sometimes had throat pouches similar to pelicans' for catching fish. Most pterosaur skulls were long and full of needle like teeth. However, pterosaurs of the taxonomic family Azhdarchidae, which ruled the Late Cretaceous skies and included Quetzalcoatlus northropi, were toothless, according to the journal ZooKeys (opens in new tab).

A distinguishing feature of pterosaurs was the crest on their heads. Though it was initially thought that pterosaurs had no crests, it's now known that crests were widespread across pterosaur genera and came in various forms.

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For instance, some pterosaurs had big, bony crests, while other crests were fleshy with no underlying bone. Some pterosaurs even appear to have had a saillike crest made up of a membrane sheet connecting two large bones on the head. "We now know that pterosaur crests had all kinds of [bone and flesh] combinations," Hone told Live Science.

Over the years, scientists have proposed many possible purposes for these crests, including that they were used for heat regulation or to serve as rudders during flight. "But almost all of the hypotheses have failed the most basic tests," Hone said, adding that models show the crests aren't effective rudders and many small pterosaurs have crests even though they wouldn't have needed them to dissipate heat.

What seems most likely is that the crests were used for sexual selection, Hone and his colleagues argued in a 2011 study in the journal Lethaia (opens in new tab).

There are several lines of evidence that support this function of the crests, Hone explained, perhaps most notably that juveniles, which look like miniature versions of adult pterosaurs, don't have crests, suggesting the structures are used for something that is only relevant to adults, such as mating.

What did pterosaurs eat?

Pterosaurs were carnivores, though some may have occasionally ate fruits, Hone said. What the reptiles ate depended on where they lived — some species spent their lives around water, while others were more terrestrial.

Terrestrial pterosaurs ate carcasses, baby dinosaurs, lizards, eggs, insects and various other animals. "They were probably fairly active hunters of small prey," Hone said. Water-loving pterosaurs ate a variety of marine life, including fish, squid, crab and other shellfish.

In 2014, Hone sought to learn more about the lives of marine pterosaurs. With these animals, juveniles dominate the fossil record, Hone said. This is odd because young animals are generally those that are targeted by predators, preventing them from becoming part of the fossil record.

One hypothesis to explain this strange occurrence is that the juvenile pterosaurs often died by drowning instead of being eaten. To test this, Hone and his colleague Donald Henderson modelled how well could pterosaurs float on water (like ducks). They found that pterosaurs floated well, but they had poor floating postures, in which their heads rested very close to the water, if not on the water.

This suggests that aquatic pterosaurs wouldn't spend much time on the water's surface and would launch into the air shortly after diving for food to avoid drowning. However, young pterosaurs that don't yet have strong muscles or are still learning to fly would have more difficulties launching back into the air from a dive, possibly resulting in drowning, Hone said.

Amongst the toothed species of pterosaur,, researchers have discovered wear patterns on fossilised teeth that help to reveal their diets, according to Nature (opens in new tab). For example, dimorphodon – a roughly 3 feet (1 meter) long pterosaur – had previously believed to be a fishing reptile, until dental evidence revealed wear patterns that would have been produced by eating insects and land vertebrates rather than marine life.

Additional resources

For more information about pterosaurs check out “Pterosaurs (opens in new tab): (opens in new tab) Natural History, Evolution, Anatomy (opens in new tab)”, by Mark P. Witton, “Age of Pterosaurs (opens in new tab)” by Yang Yang and “Dinosaurs: New Visions of a Lost World (opens in new tab)” by Michael J. Benton.

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Bibliography

Natalia Jagielska and Stephen L.Brusatte, “Pterosaurs”, Volume 31, Current biology, August 2021, https://doi.org/10.1016/j.cub.2021.06.086 (opens in new tab)

David M. Martill, “The early history of pterosaur discovery in Great Britain”, Geological Society, London,Volume 343, January 2010, https://doi.org/10.1144/SP343.18 (opens in new tab)

David M.Martill and David M.Unwin, “The world’s largest toothed pterosaur, NHMUK R481, an incomplete rostrum of Coloborhynchus capito (Seeley, 1870) from the Cambridge Greensand of England”, Cretaceous Research, Volume 34, April 2012, https://doi.org/10.1016/j.cretres.2011.09.003 (opens in new tab)

Armand J. de Ricqlès, et al, “Palaeohistology of the bones of pterosaurs (Reptilia: Archosauria): anatomy, ontogeny, and biomechanical implications”, Zoological Journal of the Linnean Society, Volume 126, July 2000, https://doi.org/10.1111/j.1096-3642.2000.tb00016.x (opens in new tab)

David Hone, et al, “Does mutual sexual selection explain the evolution of head crests in pterosaurs and dinosaurs?”, Lethaia, Volume 45, April 2012, https://doi.org/10.1111/j.1502-3931.2011.00300.x (opens in new tab)

Pterodactyl, Pteranodon & Other Flying 'Dinosaurs' (4)

Joseph Castro

Joseph Bennington-Castro is a Hawaii-based contributing writer for Live Science and Space.com. He holds a master's degree in science journalism from New York University, and a bachelor's degree in physics from the University of Hawaii. His work covers all areas of science, from the quirky mating behaviors of different animals, to the drug and alcohol habits of ancient cultures, to new advances in solar cell technology. On a more personal note, Joseph has had a near-obsession with video games for as long as he can remember, and is probably playing a game at this very moment.

With contributions from

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  • Scott DutfieldContributor

FAQs

Are Pterodactyl and Pteranodon the same? ›

Pterodactyls are much smaller than Pteranodons. They are both winged creatures, but Pterodactyls often walked on land with the help of their hands. Pterodactyls also differ from Pteranodons in that their heads were soft, while Pteranodons have hard heads with large crests atop them.

Were there any flying dinosaurs? ›

They were the pterosaurs which included Plesiosaurus, Pteranodon, Pterodactylus, Dimorphodon, Rhamphorhynchus, Quetzalcoatlus, and many others. (pronounced TER-o-SAWRS) Pterosaurs (meaning "winged lizard") were flying, prehistoric reptiles.

What is the name of flying dinosaur? ›

Pterodactyl is the common term for the winged reptiles properly called pterosaurs, which belong to the taxonomic order Pterosauria, according to McGill University (opens in new tab). Scientists typically avoid using the term and concentrate on individual genera, such as Pterodactylus and Pteranodon.

Is a Pterodactyl a dinosaur or bird? ›

Neither birds nor bats, pterosaurs were reptiles, close cousins of dinosaurs who evolved on a separate branch of the reptile family tree. They were also the first animals after insects to evolve powered flight—not just leaping or gliding, but flapping their wings to generate lift and travel through the air.

What is the biggest flying dinosaur? ›

The largest-ever pterosaur and the largest flying animal ever discovered, Quetzalcoatlus northropi, lived around 67 million years ago and had a wingspan of 36 feet, or 11 meters, almost as long as the Hollywood sign.

What was the biggest flying animal ever? ›

The largest-ever flying animal acted like a giant heron, plucking prey from the water and launching itself into the air. Quetzalcoatlus northropi was a pterosaur which ruled the skies for millions of years, alongside a newly discovered relative.

What was the first flying dinosaur? ›

Archaeopteryx may have been the first feathered dino to go airborne on its own | Science | AAAS.

When did birds first fly? ›

Paleontologists estimate that bird-relatives flew for the first time between the middle and late parts of the Jurassic period, about 160 million years ago. These aerialists were proto birds like Archaeopteryx, somewhere between dinosaurs and birds.

Did dinosaurs fly or swim? ›

For decades, in books and museum displays, paleontologists differentiated dinosaurs from other ancient reptiles by the fact that dinosaurs didn't fly or swim. “Flight is not something dinosaurs were traditionally expected to do,” says Pittman.

What are the 3 types of dinosaurs? ›

While scientists have complex ways of classifying dinosaurs, most people separate them into three groups: carnivores, herbivores, and omnivores. Let's learn more about these three types of dinosaurs.

What did dinosaurs eat? ›

Some dinosaurs ate lizards, turtles, eggs, or early mammals. Some hunted other dinosaurs or scavenged dead animals. Most, however, ate plants (but not grass, which hadn't evolved yet).

How do you draw a flying dinosaur? ›

How To Draw A Pteranodon "Dinosaur" - YouTube

Is a chicken a dinosaur? ›

So, are chickens dinosaurs? No – the birds are a distinct group of animals, but they did descend from the dinosaurs, and it's not too much of a twist of facts to call them modern dinosaurs. There are many similarities between the two types of animal, largely to do with bone structure.

What did a pterodactyl eat? ›

Pterodactyls were meat eaters. Many had hooked claws and sharp teeth that they used to grab and hold onto prey. Pterodactyls that lived near water fed mostly on fish. Pterodactyls that lived far from water ate small animals.

Are pterodactyls still alive? ›

Pterosaurs (/ˈtɛrəsɔːr, ˈtɛroʊ-/; from Greek pteron and sauros, meaning "wing lizard") were flying reptiles of the extinct clade or order Pterosauria. They existed during most of the Mesozoic: from the Late Triassic to the end of the Cretaceous (228 to 66 million years ago).

What is bigger than T. rex? ›

Bigger than Tyrannosaurus rex, Spinosaurus lived during the Cretaceous era between 145.5 and 65.5 million years ago, which was the last period of the Mesozoic Era following the Jurassic Era and ending with the extinction of dinosaurs, except birds.

Which is the largest flying bird? ›

There are 23 species of albatrosses, though arguably the most famous is the wandering albatross (Diomedea exulans), which is the largest flying bird in the world.

How old is a pterodactyl? ›

pterodactyl, informal term for a subgroup of flying reptiles (Pterosauria) known from the Late Jurassic through Late Cretaceous epochs (163.5 million to 66 million years ago).

What was the first flying animal? ›

In Brief. Pterosaurs were the first vertebrate animals to evolve powered flight—nearly 80 million years before birds.

What animal can fly but is not a bird? ›

Bats are the only mammals that can fly and sustain their flight.

What is the biggest thing you can fly? ›

The massive Antonov An-225 Mriya cargo plane is the largest aircraft in use today. Powered by six turbofan engines, the Ukrainian-built transport can carry loads weighing as much as 250 tons, and it was initially designed to serve as a carrier for the Buran, the Soviet space shuttle, and its Energia launch vehicle.

Did most dinosaurs fly? ›

According to paleontologists, scientists who study dinosaurs, dinosaurs did not swim or fly. However, flying reptiles, known as pterosaurs, did. They had wings made of skin and lived throughout the world for about 160 million years, at the same time that dinosaurs lived.

What is the first bird? ›

Archaeopteryx is considered by many to be the first bird, being of about 150 million years of age. It is actually intermediate between the birds that we see flying around in our backyards and the predatory dinosaurs like Deinonychus.

Is a crocodile a dinosaur? ›

Crocodiles

Well, crocodiles share a heritage with dinosaurs as part of a group known as archosaurs (“ruling reptiles”), who date back to the Early Triassic period (250 million years ago). The earliest crocodilian, meanwhile, evolved around 95 million years ago, in the Late Cretaceous period.

Why is a Pteranodon not a dinosaur? ›

Because they flew and their front limbs stretch out to the sides, they are not dinosaurs. Instead, they're a distant dinosaur cousin.

Would a Pterodactyl eat a human? ›

Could A Pterodactyl Eat a Human? Hollywood might portray pterodactyls as huge and bloodthirsty, but, in fact–they were small, and probably ate about the same things as a modern hawk. They would have posed no danger to humans. Even the larger Quetzalcoatlus northropi likely wouldn't have preyed on, or eaten, humans.

What's the difference between a Pterodactyl and a pterosaur? ›

Pterodactyl, or Pterodactylus antiquus, is actually a specific type of pterosaur in the group Pterosauria, which encompasses the entire group of prehistoric flying reptiles. Pterodactylus antiquus lived 150 million years ago, ate insects or fish, and had wingspans of up to five feet.

Could a Pteranodon carry a human? ›

First of all, they wouldn't be able to carry just anyone. With the largest pterosaurs weighing an estimated 180 – 250 kg (400-550 lbs), they could probably only comfortably lift and carry smaller people.

Videos

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