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American Museum of Natural History (YouTube Channel)
American Museum of Natural History (Official Website)


Dinosaur : any of a group (Dinosauria) of extinct often very large chiefly terrestrial carnivorous or herbivorous reptiles of the Mesozoic era — Webster   See also   OneLook


Dinosaurare a diverse group of reptiles of the clade Dinosauria. 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. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201 million years ago; their dominance continued through the Jurassic and Cretaceous periods. Reverse genetic engineering and the fossil record both demonstrate that birds are modern feathered dinosaurs, having evolved from earlier theropods during the late Jurassic Period. As such, birds were the only dinosaur lineage to survive the Cretaceous–Paleogene extinction event 66 million years ago. Dinosaurs can therefore be divided into avian dinosaurs, or birds; and non-avian dinosaurs, which are all dinosaurs other than birds. — Wikipedia

Dinosaur (Encyclopædia Britannica)

Dinosaur Facts (American Museum of Natural History)
Dinosaur Pages (University of California Museum of Paleontology)
The Dino Directory (Natural History Museum)
Dinosaurs (WolframAlpha)




Paleontology, also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossils to classify organisms and study their interactions with each other and their environments (their paleoecology). Body fossils and trace fossils are the principal types of evidence about ancient life, and geochemical evidence has helped to decipher the evolution of life before there were organisms large enough to leave body fossils. Estimating the dates of these remains is essential but difficult: sometimes adjacent rock layers allow radiometric dating, which provides absolute dates that are accurate to within 0.5%, but more often paleontologists have to rely on relative dating by solving the “jigsaw puzzles” of biostratigraphy (arrangement of rock layers from youngest to oldest). — Wikipedia

Paleontology (Encyclopædia Britannica)




DDC: 567.90 Dinosaurs (Library Thing)
Subject: Dinosaurs (Library Thing)

Subject: Dinosaurs (Open Library)

LCC: QE 862.D5 Dinosaurs (UPenn Online Books)
Subject: Dinosaurs (UPenn Online Books)

LCC: QE 862.D5 Dinosaurs (Library of Congress)
Subject: Dinosaurs (Library of Congress)

Subject: Dinosaurs (WorldCat)




Dinosaurs (Ology, American Museum of Natural History)
Dinosaurs (Science Trek)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources



Dinosaurs (EurekaAlert, American Association for the Advancement of Science)
Dinosaurs (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Dinosaurs (Science Daily)
Dinosaurs (Science News)
Dinosaurs (Phys.org)
Dinosaurs (NPR Archives)


Dinosaur National Monument (National Park Service)
Where did dinosaurs live? (United States Geological Survey)


Dinosaur (USA.gov)


More News …

Dinosaurs News -- ScienceDaily All about dinosaurs. Read about dinosaur discoveries including gigantic meat-eating dinosaurs, earliest dinosaurs and more. Dinosaur pictures and articles.

  • Researchers uncover 92 fossil nests belonging to...
    on January 19, 2023 at 12:58 am

    The discovery of more than 250 fossilized eggs reveals intimate details about the lives of titanosaurs in the Indian subcontinent, according to a new study.

  • Fossils reveal dinosaurs of prehistoric Patagonia
    on January 12, 2023 at 8:58 pm

    A study is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct. The fossils represent the first record of theropods -- a dinosaur group that includes both modern birds and their closest non-avian dinosaur relatives -- from the Chilean portion of Patagonia. The researchers' finds include giant megaraptors with large sickle-like claws and birds similar to todays ducks and geese.

  • The other paleo diet: Rare discovery of dinosaur...
    on December 21, 2022 at 5:13 pm

    Microraptor was an opportunistic predator, feeding on fish, birds, lizards -- and now small mammals. The discovery of a rare fossil reveals the creature was a generalist carnivore in the ancient ecosystem of dinosaurs.

  • What the inner ear of Europasaurus reveals about...
    on December 20, 2022 at 4:24 pm

    Europasaurus is a long-necked, herbivorous dinosaur that lived in the Late Jurassic, about 154 million years ago, on a small island in modern-day Germany. Recently, scientists examined fossil braincase material of Europasaurus with the aid of micro-computed tomography (micro-CT). The digital reconstruction of the inner ear of Europasaurus gave the researchers new insights not only into its hearing ability, but also into its reproductive and social behavior.

  • Scientists discover what was on the menu of the...
    on December 16, 2022 at 7:26 pm

    The earliest dinosaurs included carnivorous, omnivorous and herbivorous species, according to a team of palaeobiologists.

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • These five spectacular impact craters on Earth...
    on January 26, 2023 at 5:42 pm

    I think all craters are cool, I'm just going to start with that. I am very biased.

  • New geosciences study shows Triassic fossils that...
    on January 25, 2023 at 4:00 pm

    The smallest of newly found fossils can upend what paleontologists know about our history.

  • We can still see these 5 traces of ancestor...
    on January 23, 2023 at 5:23 pm

    Many of us are returning to work or school after spending time with relatives over the summer period. Sometimes we can be left wondering how on earth we are related to some of these people with whom we seemingly have nothing in common (especially with a particularly annoying relative).

  • Why biodiversity matters and what the world is...
    on January 23, 2023 at 3:36 pm

    On December 19, more than 190 countries—excluding the U.S. and the Holy See—signed onto an agreement to protect 30% of land and oceans by 2030 and take 22 other measures to reduce global biodiversity loss this decade.

  • Researchers uncover 92 fossil nests belonging to...
    on January 18, 2023 at 7:00 pm

    The discovery of more than 250 fossilized eggs reveals intimate details about the lives of titanosaurs in the Indian subcontinent, according to a study published in PLOS ONE by Harsha Dhiman of the University of Delhi, New Delhi and colleagues.


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Knowledge Realm

Terrestrial   (Earth)

Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene)
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Microorganism Virus
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
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Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human


1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.