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. 2 m 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, 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 5311: authorized by Arnold Miller, entered by Karen Layou on 22.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
| |
Cirsotrema linteum Conrad 1860 wentletrap | |
Crepidula dumosa Conrad 1834 slipper shell
Crepidula lirata Conrad 1833 slipper shell | |
Tenagodus vitis Conrad 1835 snail | |
Mesalia vetusta Conrad 1833 turret shell
Turritella apita de Gregorio 1890 turret shell
Turritella obruta Conrad 1833 turret shell
"Turritella carinata" = Haustator carinata Lea 1833 turret shell | |
Calyptraphorus velatus Conrad 1833 snail | |
Agaronia bombylis Conrad 1833 snail
Agaronia alabamensis Conrad 1833 snail | |
Ancilla staminea Conrad 1832 olive snail | |
Penion delabechii Lea 1833 true whelk
Buccitriton sagenum Conrad 1833 true whelk | |
Eopleurotoma sayi Lea 1833 turrid | |
Caricella pyruloides Conrad 1832 volute
Bullata semen Lea 1833 volute
Athleta sayanus Conrad 1833 volute | |
"Ficopsis penita" = Ficus
"Ficopsis penita" = Ficus fig shell | |
Neverita limula Conrad 1833 moon snail | |
Retusa galba snail | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Barbatia rhomboidella Lea 1833 clam | |
Glycymeris sp. Da Costa 1778 clam
Glycymeris idonea Conrad 1865 clam
Glycymeris staminea Conrad 1833 clam
Glycymeris trigonella Conrad 1833 clam | |
| |
Ostrea sp. Linnaeus 1758 oyster | |
Lucina sp. Bruguière 1797 clam
Linga pomilia Conrad 1833 clam | |
cf. Caestocorbula murchisonii, cf. Parmicorbula gibbosa, "Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis
cf. Caestocorbula murchisonii Lea 1833 clam
cf. Parmicorbula gibbosa Lea 1833 clam
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam | |
Callista lisbonensis, Callista perovata, "Callista mortoni" = Costacallista mortoni, Callista aequorea, Pitar nuttali
Callista perovata Conrad 1833 venus clam
"Callista mortoni" = Costacallista mortoni Conrad 1834 venus clam
Callista aequorea Conrad 1833 venus clam
Pitar nuttali Conrad 1834 venus clam | |
Diplodonta ungulina Conrad 1833 clam | |
Spisula parilis Conrad 1833 clam | |
"Tellina papyria" = Tellina (Eurytellina) papyria
"Tellina papyria" = Tellina (Eurytellina) papyria Conrad 1833 tellin clam | |
Lirodiscus tellinoides Conrad 1833 clam | |
"Venericardia parva" = Venericardia (Pleuromeris) parva, "Venericardia alticostata" = Venericardia (Claibornicardia) alticostata, "Venericardia rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia parva" = Venericardia (Pleuromeris) parva Lea 1833 clam
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata Conrad 1833 clam
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam | |
Bathytormus protextus Conrad 1832 clam | |
"Nucula ovula" = Nucula (Nucula) ovula, "Nucula magnifica" = Nucula (Nucula) magnifica
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam
"Nucula magnifica" = Nucula (Nucula) magnifica Conrad 1833 nut clam |