Near West Greene: Late/Upper Maastrichtian, Alabama
collected 1933
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Mosasauridae
|
|||||||
|
Tylosaurus sp.
Marsh 1872
|
Russell 1964 | 1 specimen | |||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Greene |
| Coordinates: | 32.9° North, 88.1° West (view map) | ||||
| Paleocoordinates: | 36.4° North, 65.9° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| 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
| Geological group: | Selma | Formation: | Prairie Bluff Chalk | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "The stratum in which the fossils were found has been established by Dr. Walter B. Jones, state geologist, as the uppermost portion of the Selma formation of upper Cretaceous age." - therefore either Prairie Bluff Chalk or Providence Sand, and more likely the former based on geography | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Includes fossils? | Y |
| Lithology description: "The layer at the place in which the excavations were made consisted of rotten limestone with a superimposed layer of drift or second bottom of the river." | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | few |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | field collection |
| Collection size: | 1 specimens |
| Reason for describing collection: | general faunal/floral analysis | Collection dates: | 1933 |
Metadata
| Database number: | 107501 | ||
| Authorizer: | M. Carrano | Enterer: | H. Street |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2011-04-09 05:06:29 | Last modified: | 2021-02-26 03:54:57 |
| Access level: | the public | Released: | 2011-04-09 05:06:29 |
| Creative Commons license: | CC BY |