Lake Waco Dam: Late/Upper Cenomanian, Texas
collected by B. C. Brown, L. Brown 1948
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Plesiosauria
- Polycotylidae
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Ceraunosaurus brownorum n. gen., n. sp.
Thurmond 1968
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synonym of Trinacromerum bentonianum | |||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | McLennan |
Coordinates: | 31.6° North, 97.2° West (view map) | ||||
Paleocoordinates: | 30.1° North, 62.3° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
Key time interval: | Late/Upper Cenomanian | ||
Age range of interval: | 99.60000 - 93.50000 m.y. ago |
Stratigraphy
Formation: | Lake Waco | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: "in the type section" of the Lake Waco Formation locality is "Late Cenomanian or possibly late Turonian" but specimen itself is "almost certainly Cenomanian" |
Lithology and environment
Primary lithology: | lithified "shale" |
Lithology description: "slab of shale" | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body,adpression |
Size of fossils: | macrofossils |
Articulated whole bodies: | some |
Associated major elements: | none |
Disassociated major elements: | none |
Disassociated minor elements: | none |
Collection methods and comments
Collection methods: | survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | B. C. Brown, L. Brown | Collection dates: | 1948 |
Collection method comments: Baylor University Strecker Museum collection
locality is now flooded |
Metadata
Database number: | 90465 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | R. Benson | Research group: | vertebrate |
Created: | 2009-07-28 11:01:06 | Last modified: | 2011-09-27 10:36:52 |
Access level: | the public | Released: | 2009-07-28 11:01:06 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
30427. | J. T. Thurmond. 1968. A new polycotylid plesiosaur from the Lake Waco Formation (Cenomanian) of Texas. Journal of Paleontology 42(5):1289-1296 [J. Alroy/J. Alroy] |
Secondary references:
34117 | K. Carpenter. 1996. A review of short-necked plesiosaurs of the Western Interior, North America. Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen 201(2):259-287 [M. Carrano/H. Street] |