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  1. en.wikipedia.org › wiki › TheropodaTheropoda - Wikipedia

    2 giorni fa · References. External links. Theropoda ( / θɪəˈrɒpədə /; [2] from Ancient Greek θηρίον (thēríon) 'wild beast', and πούς, ποδός (poús, podós) 'foot'), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb.

  2. 5 giorni fa · Utahraptor is the largest dromaeosaurid dinosaur that lived in Early Cretaceous Utah, approximately 135 to 130 million years ago. Initially described in 1993, this carnivorous theropod is...

  3. 6 giorni fa · The Djadochta Formation (sometimes transcribed and also known as Djadokhta, Djadokata, or Dzhadokhtskaya) is a highly fossiliferous geological formation situated in Central Asia, Gobi Desert, dating from the Late Cretaceous period, about 75 million to 71 million years ago.

  4. 4 giorni fa · Archaeopteryx ( / ˌɑːrkiːˈɒptərɪks /; lit. 'old-wing' ), sometimes referred to by its German name, " Urvogel " ( lit. Primeval Bird) is a genus of bird -like dinosaurs. The name derives from the ancient Greek ἀρχαῖος ( archaīos ), meaning "ancient", and πτέρυξ ( ptéryx ), meaning "feather" or "wing".

  5. 6 giorni fa · This article records new taxa of every kind of fossil archosaur that were scheduled to be described during 2023, as well as other significant discoveries and events related to the paleontology of archosaurs that were published in 2023. Paleontology portal. History of science portal. dinosaurs portal.

  6. en.wikipedia.org › wiki › BirdBird - Wikipedia

    2 giorni fa · Bird. Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

  7. 1 giorno fa · Internet TLD. .us [16] The United States of America ( USA or U.S.A. ), commonly known as the United States ( US or U.S.) or America, is a country primarily located in North America. It is a federation of 50 states, a federal capital district ( Washington, D.C. ), and 326 Indian reservations.