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HYPACROSAURUS

a lambeosaurine hadrosaurid (duck-billed) dinosaur from the Late cretaceous of Canada.
hypacrosaurus.png
Pronunciation: hi-PAK-ro-SOR-us
Meaning: Nearly the highest ranked lizard
Author/s: Brown (1913)
Synonyms: Cheneosaurus (Lambe, 1917)
First Discovery: Alberta, Canada
Chart Position: 76

Hypacrosaurus altispinus

(Nearly the highest ranked lizard, with high spines)Etymology
Hypacrosaurus is derived from the Greek "Hypakros" ("nearly the highest [in rank], close to the top, close to first) and "sauros" (lizard). Barnum Brown described Hypacrosaurus as "the largest of all known Trachodonts, approaching in size the great carnivorous dinosaur Tyrannosaurus", meaning it was nearly equal to Tyrannosaurus rex—the "king" of the tyrant lizards—in rank.
The species epithet, altispinus, means "high-spined" and refers to the tall, spines protruding from the top of its vertebrae.
Discovery
The first fossils of Hypacrosaurus were discovered in the Horseshoe Canyon Formation, near Tolman Ferry, Alberta, Canada, by Barnum Brown in 1910.
The holotype (AMNH 5204) consists of a partial pelvis and some vertebrae.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian-Maastrichtian
Age range: 71-66 mya
Stats:
Est. max. length: 10 meters
Est. max. hip height: 3 meters
Est. max. weight: 2 tons
Diet: Herbivore
Other species
Hypacrosaurus sternbergi, based on MOR 549, was discovered at Badger Creek, in the Two Medicine Formation of Glacier County, Montana.
References
• Brown, Barnum (1913) "A new trachodont dinosaur, Hypacrosaurus, from the Edmonton Cretaceous of Alberta". Bulletin of the AMNH, version 32, article 20.
• Lambe, Lawrence M. (1917) "On Cheneosaurus tolmanensis, a new genus and species of trachodont dinosaur from the Edmonton Cretaceous of Alberta". The Ottowa Naturalis, Vol.XXX, No.10.
• D.B. Weishampel, P.M. Barrett, R.A. Coria, J. Le Loueff, Xu Xing, Zhao Xijin, A. Sahni, E.M.P. Gomani and C.N. Noto (2004) "Dinosaur distribution" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
• Horner JR and Currie PJ (1994) "Embryonic and neonatal morphology and ontogeny of a new species of Hypacrosaurus (Ornithischia, Lambeosauridae) from Montana and Alberta" in Carpenter, Hirsch and Horner (eds.) "Dinosaur Eggs and Babies". Cambridge University Press. pp. 312–336.
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To cite this page:
Atkinson, L. "HYPACROSAURUS :: from DinoChecker's dinosaur archive".
›. Web access: 21st Sep 2017.
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