Windy City, Rattlesnake Mountain, Big Bend: Middle Campanian - Late/Upper Campanian, Texas
collected by P. C. Sereno, C. A. Forster, J. T. Sankey 1989-1991, 2000-2007
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Plantae indet.
Haeckel 1866
|
Gasaway et al. 2007 | |||||||||
"plants" | ||||||||||
Gastropoda
|
||||||||||
Gastropoda indet.
Cuvier 1795
|
Gasaway et al. 2007 | |||||||||
"snails" | ||||||||||
Reptilia
- Dinosauria
|
||||||||||
Dinosauria indet.
Owen 1842
|
Gasaway et al. 2007 | |||||||||
4 additional types of eggshell | ||||||||||
Reptilia
|
||||||||||
Ankylosauria indet.
Osborn 1923
|
Gasaway et al. 2007 | |||||||||
Ceratopsia indet.
Marsh 1890
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Ceratopsidae
|
||||||||||
Chasmosaurus mariscalensis
Lehman 1989
|
2 individuals | |||||||||
recombined as Agujaceratops mariscalensis | ||||||||||
TMM 43098-1 | ||||||||||
Reptilia
- Hadrosauridae
|
||||||||||
Hadrosauridae indet.
Cope 1869
|
||||||||||
LSUMG 842:8397 | ||||||||||
Reptilia
- Theropoda
|
||||||||||
Theropoda indet.
Marsh 1881
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Dromaeosauridae
|
||||||||||
cf. Saurornitholestes sp.
Sues 1978
|
Gasaway et al. 2007 | |||||||||
Reptilia
|
||||||||||
Aves indet.
Linnaeus 1758
|
Gasaway et al. 2007 | |||||||||
"birds" | ||||||||||
Reptilia
- Ornithomimidae
|
||||||||||
Ornithomimidae indet.
Marsh 1890
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Tyrannosauridae
|
||||||||||
Tyrannosauridae indet.
Osborn 1906
|
Gasaway et al. 2007 | |||||||||
LSUMG 842:17876 | ||||||||||
Reptilia
- Elongatoolithidae
|
||||||||||
Porituberoolithus sp.
Zelenitsky et al. 1996
|
Sankey 2010 | |||||||||
Continuoolithus sp.
Zelenitsky et al. 1996
|
Sankey 2010 | |||||||||
Reptilia
- Pterosauria
|
||||||||||
Pterosauria indet.
Kaup 1834
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Crocodylia
|
||||||||||
Crocodylia indet.
(Owen 1842)
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Baenidae
|
||||||||||
Baenidae indet.
Cope 1882
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Testudines
- Adocidae
|
||||||||||
Adocus sp.
Cope 1868
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Testudines
- Kinosternoidea
|
||||||||||
cf. Hoplochelys sp.
Hay 1908
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Testudines
- Nanhsiungchelyidae
|
||||||||||
Basilemys sp.
Hay 1902
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Testudines
|
||||||||||
cf. Helopanoplia sp.
Hay 1908
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Testudines
- Trionychidae
|
||||||||||
Trionychidae indet.
Gray 1825
|
Gasaway et al. 2007 | |||||||||
Reptilia
- Lacertilia
|
||||||||||
Lacertilia indet.
Owen 1842
|
Gasaway et al. 2007 | |||||||||
"lizard" | ||||||||||
Mammalia
|
||||||||||
Mammalia indet.
Linnaeus 1758
|
Gasaway et al. 2007 | |||||||||
"mammal" | ||||||||||
Amphibia
- Temnospondyli
|
||||||||||
Caudata indet.
Scopoli 1777
|
Gasaway et al. 2007 | |||||||||
"salamander" | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Brewster |
Coordinates: | 29.2° North, 103.6° West (view map) | ||||
Paleocoordinates: | 35.7° North, 77.1° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
*Period: | Late/Upper Cretaceous | *Epoch: | Senonian |
*International age/stage: | Late/Upper Campanian | ||
Key time interval: | Middle Campanian - Late/Upper Campanian | ||
Age range of interval: | 83.50000 - 70.60000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Aguja | Member: | Upper Shale |
Local section: | Purple Hill | Local bed: | 1 m |
Local order: | bottom to top | ||
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | paleosol/pedogenic,very fine,fine,nodular,green lithified muddy sandstone |
Secondary lithology: | silty mudstone |
Includes fossils? | Y |
Lithology description: "silty mudstone to fine sandstone"; very fine to fine grained muddy sandstone, light olive gray, poorly sorted, moderately well indurated; abundant clay balls, pedogenic carbonate nodules | |
Environment: | crevasse splay |
Geology comments: "a crevasse splay into a marshy area of a coastal floodplain" |
Taphonomy
Modes of preservation: | body |
Lagerst�tten type: | concentrate |
Degree of concentration: | -bonebed |
Size of fossils: | macrofossils,mesofossils,microfossils |
Preservation of anatomical detail: | good |
Associated major elements: | some |
Disassociated major elements: | many |
Disassociated minor elements: | many |
Size sorting: | poor |
Fragmentation: | occasional |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection excludes: | some genera,some macrofossils,species names | ||
Collection methods: | bulk,selective quarrying,surface (float),surface (in situ),mechanical,sieve,field collection,observed (not collected) | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | P. C. Sereno, C. A. Forster, J. T. Sankey | Collection dates: | 1989-1991, 2000-2007 |
Metadata
Also known as: | LSUMG 842, VL-842, TMM 43098 | ||
Database number: | 25073 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2002-08-27 14:15:24 | Last modified: | 2022-02-24 04:41:25 |
Access level: | the public | Released: | 2002-08-27 14:15:24 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
7029. | C. A. Forster, P. C. Sereno, T. W. Evans and T. Rowe. 1993. A complete skull of Chasmosaurus mariscalensis (Dinosauria, Ceratopsidae) from the Aguja Formation (late Campanian) of west Texas. Journal of Vertebrate Paleontology 13(2):161-170 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
17240 | ETE | C. A. Forster and P. C. Sereno. 1993. Chasmosaurus mariscalensis skull from Big Bend National Park. In V. Santucci (ed.), National Park Service Paleontology Research Abstract Volume. Technical Report NPS/NRPEFO/NRTR 93/11:14 [M. Carrano/M. Carrano/M. Uhen] |
25812 | ETE | S. Gasaway, J. T. Sankey, N. Oritz and V. Meredith. 2007. Paleoecology of a Chasmosaurus mariscalensis bonebed, Late Cretaceous (late Campanian), Big Bend National Park, Texas. Journal of Vertebrate Paleontology 27(3, suppl.):79A [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] | |
48987 | T. M. Lehman. 2007. Growth and population age structure in the horned dinosaur Chasmosaurus. In K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithischian Dinosaurs 259-317 [M. Carrano/M. Carrano] | |
36226 | ETE | J. T. Sankey. 2010. Faunal composition and significance of high-diversity, mixed bonebeds containing Agujaceratops mariscalensis and other dinosaurs, Aguja Formation (Upper Cretaceous), Big Bend, Texas. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 520-537 [M. Carrano/M. Carrano] |