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
Gastropoda | |
Solariella stalagmium Conrad 1833 snail | |
Crepidula lirata Conrad 1833 slipper shell | |
Mesalia vetusta, Turritella apita, Turritella dutexata, Turritella obruta, "Turritella carinata" = Haustator carinata
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
"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 bellus Conrad 1833 true whelk
Buccitriton sagenum Conrad 1833 true whelk
Pseudoliva vetusta Conrad 1833 true whelk | |
Mazzalina inaurata 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 | |
Doliocassis nupera Conrad 1833 snail | |
Polinices eminulus Conrad 1833 moon snail
Neverita limula Conrad 1833 moon snail
"Natica semilunata" = Natica (Naticarius) semilunata Lea 1833 moon snail | |
Cyclostremiscus exacuus snail | |
"Architectonica alveata" = Architectonica (Stellaxis) alveatum, Architectonica fungina, Architectonica elaborata
"Architectonica alveata" = Architectonica (Stellaxis) alveatum Conrad 1833 sundial
Architectonica fungina Conrad 1833 sundial
Architectonica elaborata Conrad 1833 sundial | |
Retusa galba snail | |
Bivalvia | |
Glycymeris staminea Conrad 1833 clam
Glycymeris trigonella Conrad 1833 clam | |
| |
Plicatula filamentosa Conrad 1833 scallop | |
"Pycnodonta sp." = Pycnodonte
"Pycnodonta sp." = Pycnodonte Fischer von Waldheim 1835 oyster | |
Lucina sp. Bruguière 1797 clam
Linga pomilia Conrad 1833 clam
"Lucina dolabra" = Recurvella dolabra Conrad 1833 clam | |
cf. Caestocorbula murchisonii, cf. Parmicorbula gibbosa, Caryocorbula deusseni, "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 claiboplata" = Venericardia carolinensis, "Venericardia rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia parva" = Venericardia (Pleuromeris) parva Lea 1833 clam
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata Conrad 1833 clam
"Venericardia claiboplata" = Venericardia carolinensis Conrad 1848 clam
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam | |
Bathytormus protextus Conrad 1832 clam | |
"Nucula ovula" = Nucula (Nucula) ovula
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam | |
"Nuculana coelata" = Leda coelata
"Nuculana coelata" = Leda coelata Hinds 1843 pointed nut clam |