Asteroidea, Reid locality 11, Main Street fm, Fort Worth: Late/Upper Albian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Asteroidea
- Zorocallida
- Terminasteridae
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Alkaidia sumralli n. gen., n. sp.
Blake and Reid 1998
|
2 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Texas | County: | Fort Worth |
| Coordinates: | 32.8° North, 97.2° West (view map) | ||||
| Paleocoordinates: | 30.1° North, 59.7° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | hand sample |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Late/Upper Albian | ||
| Age range of interval: | 106.20000 - 100.50000 m.y. ago |
Stratigraphy
| Geological group: | Washita | Formation: | Main Street Limestone |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | poorly lithified claystone |
| Includes fossils? | Y |
| Environment: | offshore shelf |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | rare |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | surface (float),mechanical,field collection |
| Collection size: | 2 individuals |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 59880 | ||
| Authorizer: | L. Villier | Enterer: | L. Villier |
| Modifier: | M. Carrano | Research group: | marine invertebrate |
| Created: | 2006-04-19 06:15:11 | Last modified: | 2023-01-04 09:01:45 |
| Access level: | the public | Released: | 2006-04-19 06:15:11 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17188. | D. B. Blake and R. Reid. 1998. Some Albian (Cretaceous) asteroids (Echinodermata) from Texas and their paleobiological implications. Journal of Paleontology 72(3):512-532 [L. Villier/L. Villier] |