Glyptodonts


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Glyptodonts

 

(Glyptodontidae), extinct mammals of the order Edentata, related to the armadillos. They existed from the early Eocene to the Pleistocene. Their size varied greatly, with the largest reaching a length of 2 m. The body of the glyptodont was covered with bony shields or a solid shell like that of the turtle. The short limbs had broad, hoof-like claws. The skull was small; there were no incisors or canine teeth, and the tall, prismatic teeth indicate a diet of coarse vegetation. Glyptodonts were distributed primarily in South America and also in the southern part of North America during the Pliocene and Pleistocene.

REFERENCES

Osnovy Paleontologii: Mlekopitaiushchie. Moscow, 1962.
Romer, A. S. Paleontologiia pozvonochnykh. Moscow-Leningrad, 1939. Pages 342-44. (Translated from English.)
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References in periodicals archive ?
We compared the osteology of both specimens to other recovered glyptodonts from Mexico and the latest revision of the genus Glyptotherium (Gillette and Ray, 1981) to assign them to species level.
MATERIALS AND METHODS--We identified both specimens of glyptodonts by comparing them with the latest revision of the genus Glyptotherium (Gillette and Ray, 1981) and with previously recovered specimens housed in paleontological collections in Mexico.
The study of North American glyptodonts started in the late 19th Century with a similar tendency, and Glyptodon Cope 1889, Glyptotherium Osborn 1903, Brachyostracon Brown 1912, Boreostracon Simpson 1929, and Xenoglyptodon Meade 1953 were recognized.
The diagnosis of the glyptodonts of North America includes a total of 41 characters (Gillette and Ray, 1981).
We assign the glyptodonts from Tamaulipas and Tlaxcala to the species Glyptotherium cylindricum (Brown, 1912), which has nomenclatural priority over G.
Exoskeleton and systematics: a historical problem in the classification of glyptodonts.
According to Dr Blanco, of the Faculty of Science in Montevideo, Uruguay, "We concluded several large species of glyptodonts used the tail clubs mainly for powerful blows in ritualised fighting but the small species used the tail clubs also in other situations as defence against predators.
Glyptodonts died out at the end of the last ice age 10,000 years ago were much larger relatives of the modern armadillo.
The present study reinforces the idea of the presence of spikes or other horny structures wuth similar function for several species of glyptodonts," Dr Blanco said.
With the nature of the dense bony armor that glyptodonts and pampatheres share, it would be unlikely that the dire wolf would have pursued adult, armored, cingulate xenarthrans as prey.
and glyptodont and pampathere xenarthrans have been described (Mead et al.
Photo: Two types of mammals that became extinct in North America about 11,000 years ago were the giant sloth and the armadillo-like glyptodonts.