AMa-2 Nanafalia (Paleocene to of the United States)

Where: Marengo County, Alabama (32.3° N, 87.8° W)

• Paleocoordinates: 36.4° N, 59.8° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: "Ostrea thirsae" Member (Nanafalia Formation), Selandian to Selandian (61.6 - 56.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, glauconitic, gray, blue, calcareous sandstone

• Sand, dark-blueish-gray, massive, calcareous, glauconitic, fossiliferous. The upper beds contain abundant "Ostrea" thirsea but few other fossils. Bed 1, lower part, of Toulmin, LaMoreaux, and Lamphere, 1951, p. 61, contains a large number of species of beautifully preserved mollusks. The bed is now covered by the backwater from Coffeeville Dam.

Size class: mesofossils

Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 80386: authorized by Arnold Miller, entered by Jocelyn Sessa on 16.04.2008

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Carditida - Carditidae
Venericardia aposmithi
 Cardiida - Veneridae
Pitar nuttalliopsis
Pitar nuttalliopsis venus clam
Pitar nuttalliopsis greggi
 Cardiida - Cardiidae
Acanthocardia tuomeyi
Acanthocardia tuomeyi Aldrich 1886 cockle
 Ostreida - Ostreidae
Ostrea sinuosa, Odontogryphaea thirsae
Odontogryphaea thirsae Gabb 1862 oyster
Gastropoda
 Sorbeoconcha - Naticidae
Polinices sp.
Polinices sp. Monfort 1810 moon snail
"Natica onusta"
 Sorbeoconcha - Rostellariidae
Calyptraphorus cf. trinodiferus
 Neogastropoda - Volutidae
Athleta tuomeyi
 Neogastropoda - Clavatulidae
"Surcula nasuta" = Turricula
"Surcula nasuta" = Turricula snail
1 Surcula nasuta subsp.
 Neogastropoda - Costellariidae
Orthosurcula indenta
 Cerithioidea - Turritellidae
Turritella multilira, "Turritella mortoni" = Kapalmerella mortoni
Turritella multilira turret shell
[entered as Turritella multilria]
"Turritella mortoni" = Kapalmerella mortoni Conrad 1830 turret shell
Turritella mortoni postmortoni
Anthozoa
 Scleractinia - Dendrophylliidae
Balanophyllia desmophyllum
Balanophyllia desmophyllum Milne-Edwards and Haime 1848 stony coral
Balanophyllia desmophyllum microcostada