STEPHANOSAURUS
a dubious hadrosaurid dinosaur from the Late Cretaceous of Canada.
Pronunciation: STEF-an-o-SOR-us
Meaning: Crown lizard
Author/s: Lambe (
1914)
Synonyms: See
below
First Discovery: Alberta, Canada
Discovery Chart Position: #116
Stephanosaurus marginatus
In 1902, Lawrence Lambe assigned a hotch-potch of hadrosaurid bones, teeth fragments, and disassociated odds and ends from Red Deer River to Trachodon as Trachodon (Pteropelyx) marginatus, and in early 1914, he bolstered its remains with two new specimens from a 1913 Charles H Sternberg-led expedition to the same locality: a splendid specimen including what were thought to be "webbed feet adapted for swimming" that was being prepared for an exhibition at the Museum of the Geological Survey in Ottawa, and a second specimen that would supplement its missing parts. Although not mentioned specifically at that point, possibly because "a tenacious layer of clay iron-stone" had coated some parts of the skeleton and was proving difficult to remove, both specimens included a skull.
Trachodon (
Pteropelyx)
marginatus (Lambe,1902)
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 76-75 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Herbivore
Stephanosaurus
marginatus
References
• Lambe LM (1902) "
On Vertebrata of the mid-Cretaceous of the Northwest Territory. 2. New genera and species from the Belly River Series (mid-Cretaceous)".
Contributions to Canadian Paleontology, 3: 25–81.
• Sternberg GF (1913) "
008-02: Natural Mold of the Integument of Stephanosaurus Marginatus".
George Fryer Sternberg Album #2 - Early Canadian Views, 21. University Archives, Forsyth Library, Fort Hays State University.
• Lambe LM (1914) "
The manus in a specimen of Trachodon from the Edmonton formation of Alberta".
Ottawa Naturalist, 27(2): 21-25.
• Lambe LM (1914) "
On a new genus and species of carnivorous Dinosaur from the Belly River Formation of Alberta with a description of the skull of Stephanosaurus marginatus from the same horizon".
Ottawa Naturalist, 28: 13-20.
• Brown B (1914) "
Corythosaurus casuarius, a new crested dinosaur from the Belly River Cretaceous, with Provisional classification of the family Trachodontidae".
Bulletin of the American Museum of Natural History, 33(35): 559-565.
• Parks WA (1923) "
Corythosaurus intermedius, a new species of trachodont dinosaur".
University of Toronto Studies, Geological Series, 15: 1–57.
• Gilmore CW (1924) "On the genus
Stephanosaurus, with a description of
Lambeosaurus lambei Parks".
Bulletin Canada Geological Survey, Department of Mines, 38: 29-48.
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To cite this page:
Atkinson, L.
"
STEPHANOSAURUS :: from DinoChecker's dinosaur archive".
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