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GLYPTODONTOPELTA

a plant-eating nodosaurid ankylosaurian dinosaur from the Late Cretaceous of North America.
Pronunciation: GLIP-to-don-to-PEL-tuh
Meaning: Glyptodon shield
Author/s: Ford (2000)
Synonyms: Edmontonia australis?
First Discovery: New Mexico, USA
Chart Position: 383

Glyptodontopelta mimus

Glyptodontopelta—"Glyptodon shield"—was so named because its armour resembled that of the VW Beetle-sized, armadillo-like mammal known as Glyptodon. Unfortunately, three bits of flat armour-plate represent the entirety of its fossils, which isn't a particularly strong foundation on which to build an entirely new dinosaur, and many experts have been suspicious of its validity from the jump.

One worker who believed Glyptodontopelta to be a distinct and diagnostic dinosaur is Tracey Ford though this is not surprising, because he named it. He even raised a new family — Stegopeltinae — to house it along with Aletopelta and Stegopelta, the latter of which Wendell Williston had compared to both Stegosaurus and Glyptodon in 1905. But still most experts remained unswayed.

Although found to be dubious in a review of ankylosaurs in 2004, Michael Burns revisited Glyptodontopelta in 2008 and confirmed that the surface texture of its armour was indeed unique for a dinosaur. But he also rejected Stegopeltinae, tagged Glyptodontopelta a nodosaurid, and had a sneaking suspicion that it may own the remains that Ford had assigned to Edmontonia australis from the older Kirtland Formation, also in 2000.

(Glyptodon shield mimic) Etymology
Glyptodontopelta is named for Glyptodon — from the Greek "glyptos" (carved) and "odon" (tooth) — and the Greek "pelte" (shield), becasue its armour was similar to that of armadillo-like mammal, Glyptodon. In Latin, the species epithet mimus means "mimic".
Discovery
The only remains of Glyptodontopelta were discovered in the Naashoibito Member of the Ojo Alamo Formation in New Mexico's San Juan basin. This area has also yielded fossils of Alamosaurus - based on new remains potentially one of the largest known sauropods.
The holotype (USNM 8610) consists of three pieces of armour plate.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 67-66 mya
Stats:
Est. max. length: 5 meters
Est. max. hip height: ?
Est. max. weight: 750 Kg
Diet: Herbivore
References
• T.L. Ford. (2000) "A review of ankylosaur osteoderms from New Mexico and a preliminary review of ankylosaur armour" in Lucas S.G. (ed) "Dinosaurs of New Mexico".
• M.K. Vickaryous, T. Maryańska and D.B Weishampel (2004) "Ankylosauria" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
• Michael E. Burns (2008) "Taxonomic utility of ankylosaur (Dinosauria, Ornithischia) osteoderms: Glyptodontopelta mimus Ford, 2000: a test case".
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To cite this page:
Atkinson, L. "GLYPTODONTOPELTA :: from DinoChecker's dinosaur archive".
›. Web access: 23rd Mar 2017.
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