ACof-1 (Eocene of the United States)

Also known as ACof-1 of Toulmin 1977

Where: Coffee County, Alabama (31.3° N, 86.1° W)

• Paleocoordinates: 34.6° N, 62.7° W (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bashi Member (Hatchetigbee Bluff Formation), Ypresian (56.0 - 47.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, phosphatic, muddy, calcareous sandstone

• unlithified calcareous, clayey sand, possibly phosphatic

Size class: mesofossils

Collected by Warren Allmon and Emily Cobabe in 07/02/88

Collection methods: bulk, sieve,

• Gastropod shells were only counted if they contained the apex of the shell; bivalve shells were only counted if they contained the umbo

Primary reference: J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 97454: authorized by Jocelyn Sessa, entered by Jocelyn Sessa on 29.07.2010

Creative Commons license: CC0 (CC0)

Taxonomic list

• Philippa Stoddard assisted in the processing and identification of this sample.
Bivalvia
 Lucinida - Lucinidae
Gastropoda
 Neogastropoda - Olividae
Anthozoa
 Scleractinia - Dendrophylliidae
Balanophyllia cf. haleana Milne-Edwards and Haime 1848 stony coral
Bryozoa
  -
Bivalvia
 Nuculanida - Nuculanidae
Calorhadia spp. Stewart 1930 pointed nut clam
Calorhadia aldrichiana pointed nut clam
"Calorhadia pharcida" = Calorhadia (Calorhadia) pharcida Dall 1898 pointed nut clam
"Sacella robusta" = Saccella pointed nut clam
 Nuculida - Nuculidae
Nucula sp. Lamarck 1799 nut clam
 Arcida - Glycymerididae
Glycymeris idonea Conrad 1865 clam
Glycymeris idonea subsp.
 Pectinida - Pectinoidae
Chlamys choctavensis Aldrich 1895 scallop
 Pectinida - Plicatulidae
Plicatula filamentosa Conrad 1833 scallop
Plicatula filamentosa var.
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Odontogryphaea ? sp. Ihering 1903 oyster
Odontogryphaea ? sp. A
 Carditida - Carditidae
Glyptoactis (Claibornicardia) alticostata Conrad 1833 clam
Glyptoactis (Claibornicardia) alticostata var.
Venericardia spp. Lamarck 1801 clam
Venericardia spp.; planicosta-like
"Venericardia cf. horatiana" = Venericardia (Venericor) horatiana Gardner 1927 clam
 Pholadida - Corbulidae
Vokesula aldrichi Meyer 1885 clam
 Cardiida - Tellinidae
Tellina greggi tellin clam
 Cardiida - Ungulinidae
? Diplodonta sp. Bronn 1831 clam
 Cardiida - Veneridae
Pitar nuttalliopsis venus clam
[entered as Pitar nuttalopsis]
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium microstria Heilprin 1880 tusk shell
 Gadilida - Gadilidae
Cadulus sp. Philippi 1844 tusk shell
Gastropoda
 Heterostropha - Acteonidae
Tornatellaea bella Conrad 1860 snail
 Cerithioidea - Turritellidae
Turritella gilberti turret shell
 Neogastropoda - Nassariidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Volutidae
 Neogastropoda - Raphitomidae
 Neogastropoda - Turridae
Coronia childreni Lea 1833 turrid
Coronia childreni var.
 Sorbeoconcha - Rostellariidae
 Sorbeoconcha - Naticidae
Naticidae indet. Guilding 1834 moon snail
Naticidae indet.
26, 25
Sigatica clarkeana Aldrich 1887 moon snail
Polinices sp. Monfort 1810 moon snail
Natica spp. Scopoli 1777 moon snail
 Neotaenioglossa - Calyptraeidae
"Calyptraea aperta" = Calyptraea (Trochita) aperta
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Trochoidea - Solariellidae
 Opisthobranchiata - Retusidae