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ALBERTACERATOPS

a herbivorous centrosaurine ceratopsid dinosaur from the Late Cretaceous of Canada.
albertaceratops
Pronunciation: al-BUHR-ta-SEH-ruh-tops
Meaning: Alberta horn face
Author/s: Ryan (2007)
Synonyms: Nothing official
First Discovery: Alberta, Canada
Chart Position: 520

Albertaceratops nesmoi

Discovered at the Mansfield Bonebed in Alberta's Oldman Formation in August 2001, Albertaceratops blew paleontologists minds with its huge chasmosaurine-like brow horns attached to an otherwise typical centrosaurine skull. And with one look at the two large, thick hooks snaking forward from the apex of its frill Dr. Michael J. Ryan immediately decided to name it "Medusaceratops" after the Greek hell hag with serpents for hair and a gaze that could turn mortals to stone. The crowd went wild.

Alas, this was only Ryan's dissertation and he changed his mind before an official description was released, settling on the inconceivably mundane Alberataceratops in 2007 instead. However, two skull frills from Montana had made their way into Alberatceratops' bone pile and caused him many sleepless nights, until they were eventually removed, renamed and officially unveiled as Medusaceratops in 2010.

Albertaceratops is amongst the most primitive centrosaurines and resides on the dinosaurian family tree just above the spot where they branched away from chasmosaurines; the horned dinosaurs that were known as ceratopsines until Ceratops was deemed an unfit name-bearer. It is also the first known centrosaurine whose nose horn isn't the biggest horn on its face, because its nose "horn" amounts to a long, shallow, banana-shaped protrusion where an impressive centrosaurine nose horn would usually be.
Etymology
Albertaceratops is derived from Alberta, Canada, its place of discovery (named after Princess Louise Caroline Alberta (1848–1939), the fourth daughter of Queen Victoria and Prince Albert), plus the Greek "ceras" (horn) and "ops" (face).
The species epithet, nesmoi, honors local rancher Cecil Nesmo, who assisted with the collection of this any many more specimens from the Manyberry area.
Discovery
The first fossils of Albertaceratops were recovered from the Oldman Formation of Alberta, Canada. Remains were erroneously assigned here from Montana's Judith River Formation, but they were removed and renamed Medusaceratops in 2010, seven years after they, and all known Albertaceratops material, in fact, were named "Medusaceratops" in Michael J. Ryan's thesis. The Holotype (TMP 2001.26.1.) is an almost complete skull.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 80-73 mya
Stats:
Est. max. length: 5.8 meters
Est. max. hip height: 2 meters
Est. max. weight: 3.5 tons
Diet: Herbivore
References
• Michael J. Ryan (2007) "A new basal centrosaurine ceratopsid from the Oldman Formation, southeastern Alberta".
• Michael Ryan, Brenda Chinnery-Allgeier, David A. Eberth (2010) "New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium".
• Michael J. Ryan, Anthony P. Russell and Scott Hartman (2010) "A New Chasmosaurine Ceratopsid from the Judith River Formation, Montana".
• G.S. Paul (2010) "The Princeton Field Guide to Dinosaurs".
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To cite this page:
Atkinson, L. "ALBERTACERATOPS :: from DinoChecker's dinosaur archive".
›. Web access: 16th Aug 2017.
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