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ANASAZISAURUS

a plant-eating saurolophine hadrosaurid dinosaur from the Late Cretaceous of New Mexico, USA.
anasazisaurus
Pronunciation: ahn-ah-SAH-zee-SOR-us
Meaning: Anasazi lizard
Author/s: Hunt and Lucas (1993)
Synonyms: Kritosaurus navajovius
First Discovery: New Mexico, USA
Chart Position: 301

Anasazisaurus horneri

Before Anasazisaurus—one of the duck-billed, herbivorous saurolophines—was officially named, Jack Horner assigned its partial, poorly preserved and only partially prepared skull to Kritosaurus navajovius—itself historically entangled with Gryposaurus—and the cheeky bugger only had it on loan from Brigham Young University at the time. Its discoverer—Spencer G. Lucas—has always maintained that Kritosaurus is dubious and in no position to be accepting new remains, so in 1993 he moved his find to its own genus, Anasazisaurus, and 50% of paleontologists rejoiced. However, the other 50% didn't, and they promptly moved it back.

Its been shunted to and fro ever since, with no sign of respite, as those who think the pair are distinct critters are clinging limpet-like to a single, ever so subtle difference in the design of their headgear; the poorly-preserved arched snout crest of Kritosaurus stops in line with the front of its eye socket while that of Anasazisaurus extends a little past this point, then folds under itself, creating a small cleft between the crest and the skull roof.
(Horner's Anasazi lizard)Etymology
Anasazisaurus is derived from "Anasazi" (a Navajo term for the "Ancient Pueblo" peoples of New Mexico, which literally means "enemy ancestors") and the Greek "sauros" (lizard). The species epithet, horneri, honors paleontologist Jack Horner.
Discovery
The remains of Anasazisaurus were discovered at "Betonnie Tstosie Wash" in the Farmington Member of the Kirtland Formation, San Juan County, New Mexico, USA, by Spencer G. Lucas during a Brigham Young University field party in 1977.
The holotype (BYU 12950) is a partial skull.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 80-73 mya
Stats:
Est. max. length: 9 meters
Est. max. hip height: ?
Est. max. weight: 2.5 tons
Diet: Herbivore
References
• Hunt AP and Lucas SG (1993) "Cretaceous vertebrates of New Mexico". "Dinosaurs of New Mexico" - New Mexico Museum of Natural History and Science Bulletin, 2.
• Horner JR (1992) "Cranial morphology of Prosaurolophus (Ornithischia: Hadrosauridae) with descriptions of two new hadrosaurid species and an evaluation of hadrosaurid phylogenetic relationships". Museum of the Rockies Occasional Paper 2: 1-119.
• Horner JR, Weishampel DB and Forster CA (2004) "Hadrosauridae" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
• Lucas SG, Spielman JA, Sullivan RM, Hunt AP and Gates T (2006) "Anasazisaurus, a hadrosaurian dinosaur from the Upper Cretaceous of New Mexico" in Lucas and Sullivan (eds.) "Late Cretaceous Vertebrates from the Western Interior". New Mexico MNHS Bulletin, 35.
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To cite this page:
Atkinson, L. "ANASAZISAURUS :: from DinoChecker's dinosaur archive".
›. Web access: 29th Mar 2017.
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