south side of Lightning Creek: Late/Upper Maastrichtian, Wyoming
collected by J. B. Hatcher 1891

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Baenidae
Baena marshi n. sp. Hay 1904
Gaffney 1972 1 specimen
nomen dubium belonging to Eubaeninae
YPM 299 (Hay, 1904, pp. 261-263, fig. 1, pl. 11; 1908, pp. 62, 63, fig. 39, pl. 8 fig. 2), Hay mentioned but did not figure carapace elements, but the type currently consists only of the plastron
Reptilia - Ceratopsidae
Triceratops ? brevicornus Hatcher and Lull 1905
1 individual
YPM 1832, plesiotype (= Sk. 21)
    = Triceratops cf. brevicornis Hatcher and Lull 1905
Schuyf 1969
synonym of Triceratops horridus
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 43.2° North, 104.7° West (view map)
Paleocoordinates:49.7° North, 79.5° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Lance
Local section:Lull Lance Creek Local bed:8
Local order:top to bottom
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Associated major elements:all
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:YPM
Collectors:J. B. Hatcher Collection dates:1891
Metadata
Also known as:Lance Creek, Hatcher Sk. 21
Database number:52683
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2005-08-16 14:36:46 Last modified:2022-10-18 15:09:33
Access level:the public Released:2005-08-16 14:36:46
Creative Commons license:CC BY
Reference information

Primary reference:

14177.ETE R. S. Lull. 1915. The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming. The American Journal of Science, series 4 40(238):319-348 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

704 E. S. Gaffney. 1972. The systematics of the North American family Baenidae (Reptilia, Cryptodira). Bulletin of the American Museum of Natural History 147(5):245-312 [J. Alroy/M. Sommers/R. Benson]
14442ETE O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [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]
55599 J. H. Ostrom and P. Wellnhofer. 1986. The Munich specimen of Triceratops with a revision of the genus. Zitteliana 14:111-158 [M. Carrano/M. Carrano]
62405 P. Schuyf. 1969. De kop van Triceratops cf. brevicornis HATCHER in het Mineralogisch-Geologisch Museum van de Technische Hogeschool te Delft [The head of Triceratops cf. brevicornis HATCHER in the Mineralogical-Geological Museum of the Technical University of Delft]. Grondboor en Hamer 1969(2):67-73 [M. Carrano/M. Carrano]