USGS Loc. 5080 - Shell Bluff [Shoal River Fm]: Serravallian, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris waltonensis
Gardner 1947
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| recombined as Costaglycymeris waltonensis | ||||||||||
| common | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Arca (Diluvarca) waltonia
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| spelled with current rank as Anadara (Diluvarca) | ||||||||||
| rare | ||||||||||
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Bivalvia
- Carditida
- Crassatellidae
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Crassatellites (Scambula) densus
(Dall 1900)
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| recombined as Crassatella densus | ||||||||||
| common | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Cardium (Cerastoderma) taphrium
Dall 1900
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| recombined as Dinocardium taphrium | ||||||||||
| rare; ? in occurrence table | ||||||||||
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Cardium (Trachycardium) plectopleura
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| original and current combination Trachycardium | ||||||||||
| rare | ||||||||||
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Cardium waltonianum
Dall 1900
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| present | ||||||||||
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta leptodoma
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| rare | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Chione (Lirophora) trimeris
Gardner 1947
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| recombined as Lirophora (Lirophora) trimeris | ||||||||||
| present | ||||||||||
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Venus nannodes
Gardner 1947
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| recombined as Mercenaria nannodes | ||||||||||
| present; ? in occurrence table | ||||||||||
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Pitaria waltonensis
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| rare | ||||||||||
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Gastropoda
- Trochidae
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Calliostoma flumenvadum
Gardner 1947
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| rare | ||||||||||
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Gastropoda
- Turritellidae
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Turritella (Torcula) waltonensis
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| original and current combination Torcula | ||||||||||
| abundant | ||||||||||
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Turritella segmenta
Gardner 1947
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| rare | ||||||||||
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Gastropoda
- Naticidae
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Natica (Stigmaulax) guppiana
Toula 1909
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| recombined as Stigmaulax guppiana | ||||||||||
| rare | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Strombina waltonia
Gardner 1947
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| recombined as Strombina (Strombina) waltonia | ||||||||||
| present | ||||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Uzita waltonensis
(Gardner 1936)
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| recombined as Nassarius (Uzita) waltonensis | ||||||||||
| rare | ||||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Fusinus waltonensis
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| rare | ||||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Oliva liodes
Dall 1903
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| recombined as Oliva (Omogymna) liodes | ||||||||||
| rare; O. liodes waltoniana | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Hemipleurotoma eileta
Gardner 1938
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| synonym of Gemmula vaningeni | ||||||||||
| rare | ||||||||||
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Polystira (Pleuroliria) tenagos
Gardner 1947
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| recombined as Polystira tenagos | ||||||||||
| rare | ||||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus waltonensis
Aldrich 1903
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| common; also C. waltonensis anodosus (common) | ||||||||||
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Gastropoda
- Neogastropoda
- Drilliidae
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Eumetadrillia rabdotacona
Gardner 1947
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| recombined as Agladrillia (Eumetadrillia) rabdotacona | ||||||||||
| rare | ||||||||||
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Gastropoda
- Neogastropoda
- Terebridae
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Terebra (Strioterebrum) waltonensis
Gardner 1947
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| recombined as Strioterebrum waltonensis | ||||||||||
| rare | ||||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crucibulum constrictum
(Conrad 1842)
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| recombined as Crucibulum (Dispotaea) constrictum | ||||||||||
| rare; C. constrictum conjuge | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Florida | County: | Walton |
| Coordinates: | 30.7° North, 86.1° West (view map) | ||||
| Paleocoordinates: | 31.0° North, 83.4° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Serravallian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Serravallian | ||
| Age range of interval: | 13.82000 - 11.63000 m.y. ago | ||
| Age estimate: | 12.4 Ma (Sr isotope) |
Stratigraphy
| Geological group: | Alum Bluff | Formation: | Shoal River | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Shoal River Fm of the Alum Bluff, which lies between the Chipola Fm (Early Miocene) and the Chochtawatchee Fm [Early Pliocene). AGE: Early Miocene (Gardener 1947); Middle Miocene in Vokes (1990) and Portell et al. (2006), although Jones et al. (1993) reports 87Sr/86Sr ratios that yielded average age estimates of 12.4 Ma [=Serravalian]. STRATIGRAPHIC POSITION: From unknown position within formation. | |||||
Lithology and environment
| Primary lithology: | unlithified calcareous marl |
| Secondary lithology: | unlithified calcareous sandstone |
| Lithology description: marls, sands, clays, for the most part unconsolidated, in places highly calcareous | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USGS |
Metadata
| Database number: | 42874 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | A. Hendy | Research group: | GCP,marine invertebrate |
| Created: | 2004-08-06 10:14:48 | Last modified: | 2012-12-05 20:59:45 |
| Access level: | the public | Released: | 2004-08-06 10:14:48 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11206. | J. R. Gardner. 1947. The Molluscan Fauna of the Alum Bluff Group of Florida. United States Geological Survey Professional Paper (142A-H)1-709 [A. Miller/K. Layou/A. Hendy] |