Where: Jackson County, Louisiana (32.3° N, 92.7° W: paleocoordinates 33.4° N, 83.8° W)
• coordinate based on nearby landmark
When: Cook Mountain Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)
• "Three samples from the site were strontium dated forty-five million years old"
•Samples taken from top of below described bed
•Ivany - Cook Mt is Bartonian
Environment/lithology: transition zone or lower shoreface; unlithified, gray, red, sandy claystone
Size classes: macrofossils, mesofossils
Collection methods: bulk, sieve,
• "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."
Primary reference: 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]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 44517: authorized by Linda Ivany, entered by Patrick Wall on 14.09.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
•...
•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."
unclassified | |
| |
Anthozoa | |
Discotrochus orbignianus stony coral | |
| |
Balanophyllia sp. Wood 1844 stony coral
Endopachys lonsdalei Vaughan 1900 stony coral | |
Gastropoda | |
Solariella tricostata Conrad 1833 snail | |
| |
Agaronia sp. Gray 1839 snail | |
Falsifusus bastropensis snail
Latirus moorei Gabb 1860 snail | |
| |
Cochlespira sp. Conrad 1865 snail | |
Eopleurotoma gemmaria turrid
"Coronia margaritosa" = Gemmula (Coronia) turrid | |
Marginella (Dentimargo) constrictoides margin shell | |
"Athleta petrosus" = Athleta petrosa
"Athleta petrosus" = Athleta petrosa Conrad 1833 volute | |
"Ficopsis sp." = Ficus
"Ficopsis sp." = Ficus Röding 1798 fig shell | |
Distorsio sp. Röding 1798 snail | |
Architectonica sp. Röding 1798 sundial | |
Retusa (Cylichnina) galba Conrad 1833 snail | |
Bivalvia | |
Glycymeris trigonella Conrad 1833 clam | |
Eburneopecten sp. Conrad 1865 scallop | |
Cubitostrea sellaeformis Conrad 1832 oyster | |
| |
Venericardia (Rotundicardia) rotunda Lea 1833 clam | |
Crassatella texalta Harris 1895 clam | |
Nucula (Nucula) mauricensis Harris 1919 nut clam | |
Scaphopoda | |
Cadulus (Dischides) subcoarcuatus tusk shell | |
Dentalium minutistriatum Gabb 1850 tusk shell | |
Gymnolaemata | |
Lunulites sp. Lamarck 1816 | |
"Holoporella granulosa" = Celleporaria
"Holoporella granulosa" = Celleporaria | |
unclassified | |
|