Where: Clarke County, Alabama (31.5° N, 87.9° W: paleocoordinates 32.1° N, 79.1° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Gosport Sand Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)
• "At each site, the horizon sampled was in the lower third of the exposure, approx. 2m above the base of the formation, but stratigraphic equivalence is undetermined."
• bed-level stratigraphic resolution
Environment/lithology: marine; unlithified, glauconitic, shelly/skeletal, calcareous sandstone and shale
Size class: mesofossils
Collection methods: bulk, mechanical, sieve,
• "Numbers of specimens reflect number of identifiable gastropod apices and total number of bivalve umbos; unidentifiable fragments were not counted."
Primary reference: E. A. CoBabe and W. D. Allmon. 1994. Effects of sampling on paleoecologic and taphonomic analyses in high-diversity fossil accumulations: an example from the Eocene Gosport Sand, Alabama. Lethaia 27:167-178 [A. Miller/K. Layou/P. Wagner]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 5316: authorized by Arnold Miller, entered by Karen Layou on 22.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Sinum bilix, Sinum declive, Polinices sp., Neverita limula, "Natica semilunata" = Natica (Naticarius) semilunata
Sinum bilix Conrad 1833 moon snail
Sinum declive Conrad 1833 moon snail
Polinices sp. Monfort 1810 moon snail
Neverita limula Conrad 1833 moon snail
"Natica semilunata" = Natica (Naticarius) semilunata Lea 1833 moon snail | |
Conomitra fusoides Lea 1833 ribbed mitre | |
Buccitriton sagenum Conrad 1833 true whelk | |
Athleta sayanus Conrad 1833 volute | |
"Ficopsis penita" = Ficus
"Ficopsis penita" = Ficus fig shell | |
Calyptraphorus velatus Conrad 1833 snail | |
Mesalia vetusta, "Turritella carinata" = Haustator carinata
Mesalia vetusta Conrad 1833 turret shell
"Turritella carinata" = Haustator carinata Lea 1833 turret shell | |
Retusa galba snail | |
Bivalvia | |
cf. Parmicorbula gibbosa, cf. Caestocorbula murchisonii, "Caryocorbula densata" = Corbula densata, "Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis
cf. Parmicorbula gibbosa Lea 1833 clam
cf. Caestocorbula murchisonii Lea 1833 clam
"Caryocorbula densata" = Corbula densata Conrad 1854 clam
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam | |
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam | |
"Nucula ovula" = Nucula (Nucula) ovula, "Nucula magnifica" = Nucula (Nucula) magnifica, "Nucula magnifica" = Nucula (Nucula) magnifica
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam
"Nucula magnifica" = Nucula (Nucula) magnifica Conrad 1833 nut clam |