USGS 7711, Sabinal: Santonian, Texas
collected by L.W. Stephenson
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Echinoidea
- Echinoneoida
- Conulidae
|
|||||||
|
Conulus stephensoni
Cooke 1953
|
|||||||
|
Echinoidea
- Spatangoida
- Hemiasteridae
|
|||||||
|
Hemiaster texanus
Roemer 1849
|
|||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Texas | County: | Uvalde |
| Coordinates: | 29.4° North, 99.5° West (view map) | ||||
| Paleocoordinates: | 32.8° North, 69.3° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Santonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Santonian | ||
| Age range of interval: | 86.30000 - 83.60000 m.y. ago |
Stratigraphy
| Formation: | Austin Chalk | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Upper Austin Chalk | |||||
Lithology and environment
| Primary lithology: | chalk |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collectors: | L.W. Stephenson |
Metadata
| Database number: | 78107 | ||
| Authorizer: | W. Kiessling | Enterer: | U. Merkel |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2008-01-28 08:01:08 | Last modified: | 2018-10-21 19:17:02 |
| Access level: | the public | Released: | 2008-01-28 08:01:08 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26335. | 1% 20600 | C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham] |