14 miles below Steveville (30 ft level): Late/Upper Campanian, Canada
collected by B. Brown & Kaisen 1913

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Ceratopsidae
Chasmosaurus kaiseni n. sp. Brown 1933
1 individual
nomen dubium belonging to Chasmosaurus
AMNH 5401; unofficially listed as Centrosaurus by museum before publication
Reptilia - Ankylosauridae
Euoplocephalus sp. Lambe 1910
Coombs 1995 1 specimen
AMNH 5405
see common names

Geography
Country:Canada State/province:Alberta
Coordinates: 50.6° North, 111.6° West (view map)
Paleocoordinates:58.0° North, 76.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Late/Upper Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Geological group:Belly River Formation:Oldman
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:good
Disassociated major elements:all
Fragmentation:occasional
Encrustation:none
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:AMNH
Collectors:B. Brown & Kaisen Collection dates:1913
Metadata
Also known as:C. kaiseni type, AMNH, 12 miles below
Database number:35379
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2003-12-08 15:49:47 Last modified:2021-09-02 14:58:54
Access level:the public Released:2003-12-08 15:49:47
Creative Commons license:CC BY
Reference information

Primary reference:
9558. B. Brown. 1933. A new longhorned Belly River ceratopsian. American Museum Novitates 669:1-3 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

77935 J. A. Campbell, M. J. Ryan, R. B. Holmes and C. J. Schröder-Adams. 2016. A re-evaluation of the chasmosaurine ceratopsid genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of western Canada. PLoS ONE 11(1):e0145805:1-39 [M. Carrano/M. Carrano]
17500ETE W. P. Coombs. 1995. Ankylosaurian tail clubs of middle Campanian to early Maastrichtian age from western North America, with description of a tiny club from Alberta and discussion of tail orientation and tail club function. Canadian Journal of Earth Sciences 32:902-912 [M. Carrano/M. Carrano/M. Carrano]
14101ETE S. J. Godfrey and R. Holmes. 1995. Cranial morphology and systematics of Chasmosaurus (Dinosauria: Ceratopsidae) from the Upper Cretaceous of western Canada. Journal of Vertebrate Paleontology 15(4):726-742 [M. Carrano/M. Carrano/M. Carrano]
70549 T. Konishi. 2015. Redescription of UALVP 40, an unusual specimen of Chasmosaurus Lambe, 1914 (Ceratopsidae: Chasmosaurinae) bearing long postorbital horns, and its implications for ontogeny and alpha taxonomy of the genus. Canadian Journal of Earth Sciences 52(8):608-619 [M. Carrano/M. Carrano]
33878ETE N. R. Longrich. 2010. Mojoceratops perifania, a new chasmosaurine ceratopsid from the late Campanian of western Canada. Journal of Paleontology 84(4):681-694 [M. Carrano/M. Carrano/M. Carrano]
12314ETE R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 [M. Carrano/M. Carrano/M. Carrano]