Locality 3, NE of Justin, Denton County, Denton Biostrome, Biofacies D: Late Albian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Cidaroida
- Cidaridae
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Cidaris (Stereocidaris) hemigranosus
Shumard 1860
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Gymnolaemata
- Cheilostomata
- Calloporidae
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Membraniporidra sp.
Canu and Bassler 1917
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Stenolaemata
- Cyclostomata
- Plagioeciidae
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Plagioecia sp.
Canu 1918
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Bivalvia
- Pectinida
- Plicatulidae
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Plicatula dentonensis
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Bivalvia
- Pectinida
- Pectinidae
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Pecten (Neithea) subalpinus
Parona 1890
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Bivalvia
- Ostreida
- Gryphaeidae
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Gryphaea washitaensis
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea (Arctostrea) carinata
Lamarck 1806
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Ostrea (Lopha) quadriplicata
Kues 1997
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Geography
| Country: | United States | State/province: | Texas | County: | Denton |
| Coordinates: | 33.2° North, 97.2° West (view map) | ||||
| Paleocoordinates: | 30.4° North, 59.6° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Late Albian | ||
| Age range of interval: | 106.2 - 100.5 m.y. ago |
Stratigraphy
| Geological group: | Washita | Formation: | Denton | ||
| Local section: | Locality 3 | Local bed: | D | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Biofacies D; oyster biostrome at the top of the Denton Fm, Washita Group, Comanche Series | |||||
Lithology and environment
| Primary lithology: | lithified argillaceous "limestone" |
| Environment: | open shallow subtidal |
| Geology comments: The depth of water in which this biofacies was deposited was shallower to the north, and all the localities infer deposition in the upper part of the neritic zone. | |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 65718 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2006-09-25 01:25:14 | Last modified: | 2006-09-25 04:25:14 |
| Access level: | the public | Released: | 2006-09-25 01:25:12 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 18885. | L. R. Laughbaum. 1960. A Paleoecologic Study of the Upper Denton Formation, Tarrant, Denton, and Cooke Counties, Texas. Journal of Paleontology 34(6):1183-1197 [M. Aberhan/S. Nurnberg] |