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Thecodontosaurus ("socket-tooth lizard") is a genus of herbivorous basal sauropodomorph dinosaur that lived during the late Triassic period (Carnian? age). [2] Its remains are known mostly from Triassic "fissure fillings" in South England. Thecodontosaurus was a small bipedal animal, about 2 m (6.5 ft) long. It is one of the first dinosaurs to ...
This feature is responsible for the name "thecodont" (meaning "socket teeth"), [8] which early paleontologists applied to many Triassic archosaurs. [7] Additionally, non-muscular cheek and lip tissue appear in various forms throughout the clade, with all living archosaurs lacking non-muscular lips, unlike most non-avian saurischian dinosaurs. [9]
Dinosaur classification began in 1842 when Sir Richard Owen placed Iguanodon, Megalosaurus, and Hylaeosaurus in "a distinct tribe or suborder of Saurian Reptiles, for which I would propose the name of Dinosauria." [1] In 1887 and 1888 Harry Seeley divided dinosaurs into the two orders Saurischia and Ornithischia, based on their hip structure. [2]
The animal, named Chakisaurus nekul, was found in the Pueblo Blanco Natural Reserve, in the southern province of Río Negro, an area rich in fossils where many mammals, turtles, and fish have been ...
The name thecodont is Greek for "socket-tooth", referring to the fact that thecodont teeth were set in sockets in the jawbones; an archosaurian characteristic that was inherited by the dinosaurs. While the taxon Thecodontia is obsolete, the term thecodont remains in use as an anatomical description of teeth in bony sockets; in addition to ...
So why are they calling this newly discovered miniscule moth a "living dinosaur?" The enigma moth has iridescent gold and purple wings. It was discovered on Australia's kangaroo island, the first.
An adult bee hummingbird, the smallest known dinosaur. The smallest dinosaur known is the bee hummingbird, [158] with a length of only 5 centimeters (2.0 in) and mass of around 1.8 g (0.063 oz). [159] The smallest known non-avialan dinosaurs were about the size of pigeons and were those theropods most closely related to birds. [160]
New research shows that ants have been farming fungi for 66 million years — thanks in part to the asteroid that fueled the demise of the dinosaurs. When a massive asteroid wiped out the ...