Little Stave Creek 3 (Gosport Sand, AL) (Eocene of the United States)

Where: Clarke County, Alabama (31.5° N, 87.9° W)

• Paleocoordinates: 35.2° N, 70.7° W (Wright 2013)

• 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

• the gosport sand is a deposit of early late eocene (bartonian) age, and consists of 2-10m of extremely fossiliferous, unconsolidated, glauconitic, calcareous quartz sand, with occasional indurated ledges and thin lenses of carbonaceous shale and lignite.

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: CC0 (CC0)

Taxonomic list

Gastropoda
 Opisthobranchiata - Retusidae
 Sorbeoconcha - Naticidae
"Natica semilunata" = Natica (Naticarius) semilunata Lea 1833 moon snail
Sinum bilix Conrad 1833 moon snail
Sinum declive Conrad 1833 moon snail
Polinices sp. Monfort 1810 moon snail
Neverita limula Conrad 1833 moon snail
 Neogastropoda - Costellariidae
Conomitra fusoides Lea 1833 ribbed mitre
 Neogastropoda - Volutidae
Athleta sayanus Conrad 1833 volute
 Neogastropoda - Buccinidae
Buccitriton sagenum Conrad 1833 true whelk
 Sorbeoconcha - Rostellariidae
Calyptraphorus velatus Conrad 1833 snail
 Sorbeoconcha - Ficidae
"Ficopsis penita" = Ficus
"Ficopsis penita" = Ficus fig shell
 Cerithioidea - Turritellidae
"Turritella carinata" = Haustator carinata, Mesalia vetusta
"Turritella carinata" = Haustator carinata Lea 1833 turret shell
Mesalia vetusta Conrad 1833 turret shell
Bivalvia
 Nuculida - Nuculidae
"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
"Nucula magnifica" = Nucula (Nucula) magnifica Conrad 1833 nut clam
Nucula magnifica "var."
 Pholadida - Corbulidae
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam
"Caryocorbula densata" = Corbula densata Conrad 1854 clam
 Carditida - Carditidae
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam