Washington County, Alabama: Bartonian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys spillmani
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Dockery 1980 | ||||||
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Gymnolaemata
- Cheilostomata
- Cribrilinidae
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Gephyrotes quadriserialis
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tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Lepraliellidae
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Kleidionella grandis
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10 %-volume | ||||||
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Holoporella damicornis
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10 %-volume | ||||||
| synonym of Celleporaria | |||||||
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Holoporella fissurata
|
tr %-volume | ||||||
| synonym of Celleporaria | |||||||
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Gymnolaemata
- Cheilostomata
- Romancheinidae
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Perigastrella trapezoidea
|
tr %-volume | ||||||
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Perigastrella ovoidea
|
tr %-volume | ||||||
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Hippopleurifera incondita
|
5 %-volume | ||||||
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Hippopleurifera costulata
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5 %-volume | ||||||
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Hippopleurifera crassicollis
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tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Onychocellidae
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Floridina antiqua
|
tr %-volume | ||||||
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Smittipora tenuis
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5 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Lunulitidae
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Lunulites distans
|
10 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Antroporidae
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Antropora minuta
|
tr %-volume | ||||||
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Antropora pyriformis
|
tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Calloporidae
|
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Membraniporidra spissimuralis
|
5 %-volume | ||||||
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Stamenocella inferaviculifera
|
tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Flustridae
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Hincksina jacksonica
|
tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Quadricellariidae
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Nellia tenella
(Lamarck 1816)
|
tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Escharinidae
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Bactridium teges
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tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Electridae
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Conopeum arborescens
Canu and Bassler 1920
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5 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Smittinidae
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Plagiosmittia regularis
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5 %-volume | ||||||
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Smittina exigua
|
tr %-volume | ||||||
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Smittina coronata
|
tr %-volume | ||||||
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Smittina portentosa
|
5 %-volume | ||||||
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Smittina jacksonica
|
5 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Bitectiporidae
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Hippoporina lucens
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tr %-volume | ||||||
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Schizomavella porosa
(Canu and Bassler 1920)
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tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Tubucellariidae
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Tubucellaria parviporosa
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tr %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Stomachetosellidae
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Metradolium transversum
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5 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Schizoporellidae
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Schizoporella viminea
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15 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Cheiloporinidae
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Cheiloporina saillans
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5 %-volume | ||||||
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Gymnolaemata
- Cheilostomata
- Celleporidae
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Schismopora globosa
|
5 %-volume | ||||||
| synonym of Celleporina | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Washington |
| Coordinates: | 31.1° North, 87.9° West (view map) | ||||
| Paleocoordinates: | 31.8° North, 79.1° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
| *Period: | Early/Lower Tertiary - Middle Tertiary | *Epoch: | Middle Eocene - Late/Upper Eocene |
| *International age/stage: | Late/Upper Bartonian - Late/Upper Bartonian | *Local age/stage: | Late/Upper Jackson - Middle - Late/Upper Jackson |
| Key time interval: | Bartonian | ||
| Age range of interval: | 41.20000 - 37.71000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Pachuta Marl | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: A middle formation of the Yazoo Group. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified marl | ||
| Includes fossils? | Y | ||
| Lithology description: fossiliferous marl | |||
| Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | bulk,core,chemical,mechanical,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: tr = trace. Indicates presence at the locality, but in insufficient numbers to calculate volume percentages. | |
| Taxonomic list comments:Bryozoans only | |
Metadata
| Also known as: | AW-1 | ||
| Database number: | 7331 | ||
| Authorizer: | L. Ivany, J. Sessa | Enterer: | E. Kowalski, L. Eccles |
| Modifier: | L. Eccles | Research group: | marine invertebrate |
| Created: | 2000-05-23 15:21:41 | Last modified: | 2010-12-16 18:19:34 |
| Access level: | the public | Released: | 2000-05-23 15:21:41 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 471. | A. H. Cheetham. 1963. Late Eocene Zoogeography of the Eastern Gulf Coast Region. The Geological Society of America Memoir 91:1-113 [L. Ivany/E. Kowalski] |
Secondary references:
| 11842 | D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles] |