Harvey Site - B: Bartonian, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Scleractinia
- Fungiidae
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Discotrochus orbignianus
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4 individuals | |||||||||
Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia sp.
Wood 1844
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1 individual | |||||||||
Gymnolaemata
- Cheilostomata
- Lunulitidae
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Lunulites sp.
Lamarck 1816
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4 individuals | |||||||||
unclassified
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Annelida indet.
Lamarck 1809
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1 individual | |||||||||
Bivalvia
- Nuculida
- Nuculidae
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Nucula (Nucula) mauricensis
(Harris 1919)
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14 individuals | |||||||||
Bivalvia
- Ostreida
- Ostreidae
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Cubitostrea sellaeformis
(Conrad 1832)
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74 individuals | |||||||||
Bivalvia
- Arcida
- Glycymerididae
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Glycymeris trigonella
(Conrad 1833)
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12 individuals | |||||||||
original and current combination Pectunculus trigonella | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Callista (Callista) perovata
(Conrad 1833)
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1 individual | |||||||||
Callista (Callista) perovata lisbone | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Venericardia (Rotundicardia) rotunda
(Lea 1833)
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7 individuals | |||||||||
Gastropoda
- Naticidae
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Neverita limula
(Conrad 1833)
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2 individuals | |||||||||
Gastropoda
- Neogastropoda
- Marginellidae
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Marginella (Dentimargo) constrictoides
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2 individuals | |||||||||
Gastropoda
- Neogastropoda
- Volutidae
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Caricella sp.
Conrad 1835
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1 individual | |||||||||
Gastropoda
- Neogastropoda
- Olividae
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Ancilla staminea
Conrad 1832
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3 individuals | |||||||||
Ancilla staminea punctulifera | ||||||||||
Gastropoda
- Neogastropoda
- Conidae
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Conus sauridens
Conrad 1833
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1 individual | |||||||||
Gastropoda
- Neogastropoda
- Melongenidae
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Levifusus mortoniopsis
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5 individuals | |||||||||
Levifusus mortoniopsis carexus | ||||||||||
Gastropoda
- Neogastropoda
- Buccinidae
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Pseudoliva vetusta
(Conrad 1833)
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1 individual | |||||||||
original and current combination Monoceros vetusta | ||||||||||
Pseudoliva vetusta carinata | ||||||||||
Gastropoda
- Turritellidae
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Turritella dutexata
Harris 1895
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3 individuals | |||||||||
[entered as Turritella detexata] | ||||||||||
Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica sp.
Röding 1798
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1 individual | |||||||||
Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium minutistriatum
Gabb 1850
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8 individuals | |||||||||
see common names |
Geography
Country: | United States | State/province: | Louisiana | County: | Jackson |
Coordinates: | 32.3° North, 92.7° West (view map) | ||||
Paleocoordinates: | 33.4° North, 83.8° West | ||||
Basis of coordinate: | based on nearby landmark |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Bartonian | ||
Age range of interval: | 41.20000 - 37.71000 m.y. ago |
Stratigraphy
Geological group: | Claiborne | Formation: | Cook Mountain | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: "Three samples from the site were strontium dated forty-five million years old"
Ivany - Cook Mt is Bartonian |
Lithology and environment
Primary lithology: | gray,red or brown unlithified sandy claystone | ||
Includes fossils? | Y | ||
Lithology description: "3'10" Gray and Brownish Red Variegated Sandy Clay" | |||
Environment: | marginal marine indet. | Tectonic setting: | passive margin |
Glacial or sequence phase: | transgressive | ||
Geology comments: "The Clairborn Group is composed of a transgressive sequence including the Cane River, Sparta, Cook Mountain, and Cockfield (Rainwater, 1982). Cockfield fluvial deposits are also present in this area. The Cook Mountain Formation was deposited during the latter part of the Clairborne stage of the Tejas sequence. It shows a transgression with the influence from the Mississippi and possibly a Ouachita source (McCarley, 1981). The Laramide and Mexican Cordilleran orogens contributed large amounts of sediment to the Gulf throughout the Eocene (Frazier and Schwimmer, 1987)." |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Articulated whole bodies: | some |
Disassociated major elements: | some |
Temporal resolution: | time-averaged |
Spatial resolution: | autochthonous |
Collection methods and comments
Collection methods: | bulk,sieve,field collection |
Rock censused: | 14 kg |
Reason for describing collection: | paleoecologic analysis |
Collection method comments: "Horizontal bulk samples were collected, disaggregated, sieved, and counted. Forty pounds of substrate were removed from a four inch horizontal layer near each lithological boundary ...These bulk samples were dried and a thirty pound sub-sample was boiled in Quaternary O solution until they disaggregated. The disaggregated sub-samples were sieved through USGS #10 and #14 sieves." | |
Taxonomic list comments:"To obtain a minimum number of species, bivalve valves were counted and divided by two. A valve was counted if more than one-half of the shell remained or if a majority of the cardinal processes and one-third of the shell remained. Whole gastropods and recognizable spires were counted. For scaphopods the toal length of the species pieces was divided by the average length of the species. Remains of bryozoan colonies were counted as an individual. Solitary corals were counted as one organism if more than one-half of the theca remained.
... A type collection was established from surface samples and identifed using Dockery (1980) and MacNeil and Dockery (1984). This collection was confirmed by David T. Dockery of the Mississippi Office of Geology." |
Metadata
Database number: | 44408 | ||
Authorizer: | L. Ivany | Enterer: | P. Wall |
Modifier: | U. Smith | Research group: | GCP,marine invertebrate |
Created: | 2004-09-09 11:30:58 | Last modified: | 2010-10-10 19:45:00 |
Access level: | the public | Released: | 2004-09-09 11:30:58 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11665. | G. Zumwalt, J. Pratt, and J. Moncrief. 1995. Marine Macro-Invertebrate Paleoenvirionmental Interpretation of the Harvey Site (Cook Mountain, Eocene) in North-Central Louisiana. Mississippi Geology 16(1):12-21 [L. Ivany/P. Wall/P. Wall] |