Where: Monroe County, Alabama (31.5° N, 87.5° W: paleocoordinates 32.1° N, 78.7° W)
• coordinate based on nearby landmark
• 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 5320: authorized by Arnold Miller, entered by Karen Layou on 22.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Spisula parilis Conrad 1833 clam | |
Diplodonta ungulina Conrad 1833 clam | |
Callista lisbonensis, Callista perovata, Pitar nuttali, Callista aequorea, "Callista mortoni" = Costacallista mortoni
Callista perovata Conrad 1833 venus clam
Pitar nuttali Conrad 1834 venus clam
Callista aequorea Conrad 1833 venus clam
"Callista mortoni" = Costacallista mortoni Conrad 1834 venus clam | |
"Tellina papyria" = Tellina (Eurytellina) papyria
"Tellina papyria" = Tellina (Eurytellina) papyria Conrad 1833 tellin clam | |
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis, cf. Parmicorbula gibbosa, cf. Caestocorbula murchisonii
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam
cf. Parmicorbula gibbosa Lea 1833 clam
cf. Caestocorbula murchisonii Lea 1833 clam | |
"Lucina dolabra" = Recurvella dolabra Conrad 1833 clam
Lucina sp. Bruguière 1797 clam
Linga pomilia Conrad 1833 clam | |
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda, "Venericardia claiboplata" = Venericardia carolinensis, "Venericardia alticostata" = Venericardia (Claibornicardia) alticostata, "Venericardia parva" = Venericardia (Pleuromeris) parva
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam
"Venericardia claiboplata" = Venericardia carolinensis Conrad 1848 clam
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata Conrad 1833 clam
"Venericardia parva" = Venericardia (Pleuromeris) parva Lea 1833 clam | |
Bathytormus protextus Conrad 1832 clam | |
Lirodiscus tellinoides Conrad 1833 clam | |
Chlamys deshayesii Lea 1833 scallop | |
Plicatula filamentosa Conrad 1833 scallop | |
Glycymeris sp. Da Costa 1778 clam
Glycymeris trigonella Conrad 1833 clam
Glycymeris staminea Conrad 1833 clam
Glycymeris idonea Conrad 1865 clam | |
Barbatia rhomboidella Lea 1833 clam | |
| |
"Nucula magnifica" = Nucula (Nucula) magnifica, "Nucula ovula" = Nucula (Nucula) ovula
"Nucula magnifica" = Nucula (Nucula) magnifica Conrad 1833 nut clam
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam | |
"Nuculana coelata" = Leda coelata
"Nuculana coelata" = Leda coelata Hinds 1843 pointed nut clam | |
Gastropoda | |
Retusa galba snail | |
Solariella stalagmium Conrad 1833 snail | |
Diodora tenebrosa Conrad 1833 snail | |
Calyptraphorus velatus Conrad 1833 snail | |
Turridae indet. Swainson 1840 turrid | |
Uromitra gracilis Lea 1941 ribbed mitre | |
Buccitriton sagenum Conrad 1833 true whelk
Penion bellus Conrad 1833 true whelk | |
Marginella constricta, "Cryptospira silabra" = Marginella silabra
Marginella constricta margin shell
"Cryptospira silabra" = Marginella silabra Palmer 1937 margin shell | |
Bullata semen Lea 1833 volute
"Athleta petrosus" = Athleta petrosa Conrad 1833 volute
Caricella pyruloides Conrad 1832 volute
Caricella bolaris Conrad 1833 volute | |
Trigonostoma gemmatum Conrad 1833 snail | |
Agaronia alabamensis Conrad 1833 snail
Agaronia bombylis Conrad 1833 snail | |
Ancilla staminea Conrad 1832 olive snail | |
Sinum declive Conrad 1833 moon snail | |
Cyclostremiscus exacuus snail | |
"Turritella carinata" = Haustator carinata Lea 1833 turret shell
Mesalia vetusta Conrad 1833 turret shell
Turritella obruta Conrad 1833 turret shell
Turritella apita de Gregorio 1890 turret shell |