Definitions for deinonychus
deinony·chus

Princeton's WordNetRate this definition:2.5 / 2 votes

1. deinonychusnoun

   swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous

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1. deinonychus

   Deinonychus is a genus of carnivorous Dromaeosauridae dinosaur that lived during the early Cretaceous Period, around 115–108 million years ago. The name Deinonychus means "terrible claw," derived from the Greek words deinos, meaning "fearful", and onyx, meaning "claw". The species is known for its large, sickle-shaped talon on the second toe of each hind foot, which is thought to have been used to take down its prey. The Deinonychus is often depicted as similar to a modern-day bird, indicative of the close relationship between avian and non-avian dinosaurs.

WikidataRate this definition:0.0 / 0 votes

1. Deinonychus

   Deinonychus is a genus of carnivorous dromaeosaurid dinosaurs. There is one described species, Deinonychus antirrhopus. These dinosaurs, which could grow up to 3.4 meters long, lived during the early Cretaceous Period, about 115–108 million years ago. Fossils have been recovered from the U.S. states of Montana, Wyoming, and Oklahoma, in rocks of the Cloverly Formation and Antlers Formation, though teeth that may belong to Deinonychus have been found much farther east in Maryland. Paleontologist John Ostrom's study of Deinonychus in the late 1960s revolutionized the way scientists thought about dinosaurs, leading to the "dinosaur renaissance" and igniting the debate on whether dinosaurs were warm-blooded or cold blooded. Before this, the popular conception of dinosaurs had been one of plodding, reptilian giants. Ostrom noted the small body, sleek, horizontal posture, ratite-like spine, and especially the enlarged raptorial claws on the feet, which suggested an active, agile predator. "Terrible claw" refers to the unusually large, sickle-shaped talon on the second toe of each hind foot. The fossil YPM 5205 preserves a large, strongly curved ungual. In life, archosaurs have a horny sheath over this bone, which extends the length. Ostrom looked at crocodile and bird claws and reconstructed the claw for YPM 5205 as over 120 millimetres long. The species name antirrhopus means "counter balance", which refers to Ostrom's idea about the function of the tail. As in other dromaeosaurids, the tail vertebrae have a series of ossified tendons and super-elongated bone processes. These features seemed to make the tail into a stiff counterbalance, but a fossil of the very closely related Velociraptor mongoliensis has an articulated tail skeleton that is curved laterally in a long S–shape. This suggests that, in life, the tail could bend to the sides with a high degree of flexibility.

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1. deinonychus

   Song lyrics by deinonychus -- Explore a large variety of song lyrics performed by deinonychus on the Lyrics.com website.

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1. • Maniraptor

How to pronounce deinonychus?

1. Alex

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   Libby

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How to say deinonychus in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of deinonychus in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of deinonychus in Pythagorean Numerology is: 2

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=deinonychus
2. ^ ChatGPT
   https://chat.openai.com
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=deinonychus