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 5321: authorized by Arnold Miller, entered by Karen Layou on 23.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Nuculana coelata" = Leda coelata
"Nuculana coelata" = Leda coelata Hinds 1843 pointed nut clam | |
"Nucula ovula" = Nucula (Nucula) ovula
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam | |
"Pycnodonta sp." = Pycnodonte
"Pycnodonta sp." = Pycnodonte Fischer von Waldheim 1835 oyster | |
Plicatula filamentosa Conrad 1833 scallop | |
| |
Glycymeris trigonella Conrad 1833 clam
Glycymeris staminea Conrad 1833 clam | |
"Venericardia parva" = Venericardia (Pleuromeris) parva, "Venericardia alticostata" = Venericardia (Claibornicardia) alticostata, "Venericardia rotunda" = Venericardia (Rotundicardia) rotunda, "Venericardia claiboplata" = Venericardia carolinensis
"Venericardia parva" = Venericardia (Pleuromeris) parva Lea 1833 clam
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata Conrad 1833 clam
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam
"Venericardia claiboplata" = Venericardia carolinensis Conrad 1848 clam | |
Lirodiscus tellinoides Conrad 1833 clam | |
Bathytormus protextus Conrad 1832 clam | |
"Tellina papyria" = Tellina (Eurytellina) papyria
"Tellina papyria" = Tellina (Eurytellina) papyria Conrad 1833 tellin clam | |
Spisula parilis 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 | |
Diplodonta ungulina Conrad 1833 clam | |
cf. Caestocorbula murchisonii, cf. Parmicorbula gibbosa, "Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis, Caryocorbula deusseni
cf. Caestocorbula murchisonii Lea 1833 clam
cf. Parmicorbula gibbosa Lea 1833 clam
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam | |
Lucina sp. Bruguière 1797 clam
"Lucina dolabra" = Recurvella dolabra Conrad 1833 clam
Linga pomilia Conrad 1833 clam | |
Gastropoda | |
Retusa galba snail | |
Architectonica fungina, "Architectonica alveata" = Architectonica (Stellaxis) alveatum, Architectonica elaborata
Architectonica fungina Conrad 1833 sundial
"Architectonica alveata" = Architectonica (Stellaxis) alveatum Conrad 1833 sundial
Architectonica elaborata Conrad 1833 sundial | |
Crepidula lirata Conrad 1833 slipper shell | |
Cyclostremiscus exacuus snail | |
Calyptraphorus velatus Conrad 1833 snail | |
Uromitra gracilis Lea 1941 ribbed mitre | |
Marginella constricta margin shell | |
Bullata semen, "Athleta petrosus" = Athleta petrosa
Bullata semen Lea 1833 volute
"Athleta petrosus" = Athleta petrosa Conrad 1833 volute | |
Trigonostoma gemmatum Conrad 1833 snail | |
Agaronia alabamensis Conrad 1833 snail
Agaronia bombylis Conrad 1833 snail | |
Ancilla staminea Conrad 1832 olive snail | |
Buccitriton sagenum Conrad 1833 true whelk
Penion bellus Conrad 1833 true whelk
Pseudoliva vetusta Conrad 1833 true whelk | |
Mazzalina inaurata Conrad 1833 snail | |
Doliocassis nupera Conrad 1833 snail | |
"Natica semilunata" = Natica (Naticarius) semilunata Lea 1833 moon snail
Neverita limula Conrad 1833 moon snail
Polinices eminulus Conrad 1833 moon snail | |
"Turritella carinata" = Haustator carinata, Mesalia vetusta, Turritella apita, Turritella dutexata, Turritella obruta
"Turritella carinata" = Haustator carinata Lea 1833 turret shell
Mesalia vetusta Conrad 1833 turret shell
Turritella apita de Gregorio 1890 turret shell
Turritella dutexata Harris 1895 turret shell
Turritella obruta Conrad 1833 turret shell | |
Solariella stalagmium Conrad 1833 snail |