Barrytown, AL; Unit C', bag #2 (Eocene of the United States)

Also known as ACh-8-a2

Where: Choctaw County, Alabama (31.8° N, 88.3° W: paleocoordinates 32.5° N, 79.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Upper Member (Lisbon Formation), Bartonian (41.3 - 38.0 Ma)

• at/near base of upper Lisbon Fm

correlates roughly with ACl-3a

• bed-level stratigraphic resolution

Environment/lithology: marine; unlithified, glauconitic, sandy marl

• sandy glauconitic marl

contains chunks of organic woody debris

Size class: mesofossils

Preservation: original aragonite, original calcite, original phosphate

Collection methods: bulk, mechanical, sieve,

• was picked and sorted by an undergrad; he likely missed some things

Primary reference: L. C. Ivany. 1997. Faunal stability and environmental change in the middle Eocene Gulf Coastal Plain (PhD Thesis, Harvard University). 1-221 [L. Ivany/L. Ivany/A. Clement]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 6788: authorized by Linda Ivany, entered by Linda Ivany on 17.03.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes all countable macrofossils
Show authors, comments, and common names
Bivalvia
 Nuculida - Nuculidae
"Nucula magnifica" = Nucula (Nucula) magnifica
"Nucula magnifica" = Nucula (Nucula) magnifica Conrad 1833 nut clam
 Nuculanida - Nuculanidae
Calorhadia semenoides, Calorhadia bella
Calorhadia semenoides pointed nut clam
Calorhadia bella pointed nut clam
 Pectinida - Pectinoidae
Eburneopecten sp.
Eburneopecten sp. Conrad 1865 scallop
 Arcida - Arcidae
Barbatia rhomboidella, Trinacria cuneus, Pachecoa sp.
Barbatia rhomboidella Lea 1833 clam
Trinacria cuneus Conrad 1833 clam
Pachecoa sp. Harris 1919 clam
 Lucinida - Lucinidae
Lucinidae indet., Eophysema cf. ozarkana, Epilucina rotunda, Lucina papyracea
Lucinidae indet. Fleming 1828 clam
Lucina papyracea Lea 1833 clam
 Pholadida - Corbulidae
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis, Vokesula smithvillensis
"Caryocorbula alabamiensis" = Corbula (Caryocorbula) alabamiensis Lea 1833 clam
Vokesula smithvillensis Harris 1919 clam
 Cardiida - Tellinidae
Macoma sp., Tellina leana, "Tellina raveneli" = Tellina (Arcopagia) raveneli
Macoma sp. Leach 1819 tellin clam
Tellina leana tellin clam
"Tellina raveneli" = Tellina (Arcopagia) raveneli Conrad 1846 tellin clam
 Cardiida - Cardiidae
Nemocardium gambrinum
 Cardiida - Erycinidae
"Mactropsis aequorea" = Erycina aequorea
"Mactropsis aequorea" = Erycina aequorea Conrad 1833 clam
 Cardiida - Veneridae
Pitar sp., Katherinella trinitatis
Pitar sp. Römer 1857 venus clam
Katherinella trinitatis Stenzel et al. 1957 venus clam
 Carditida - Carditidae
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam
Gastropoda
 Cerithioidea - Turritellidae
Turritella sp., Mesalia vetusta
Turritella sp. Lamarck 1799 turret shell
Mesalia vetusta Conrad 1833 turret shell
 Neogastropoda - Melongenidae
Levifusus mortoniopsis
 Neogastropoda - Buccinidae
Terebrifusus sp., Terebrifusus multiplicatus, Buccitriton texanum, Penion bellus, Pseudoliva vetusta
Terebrifusus sp. Conrad 1865 true whelk
Penion bellus Conrad 1833 true whelk
Pseudoliva vetusta Conrad 1833 true whelk
 Neogastropoda - Mitridae
Fusimitra polita
Fusimitra polita mitre shell
 Neogastropoda - Borsoniidae
Microdrillia sp.
Microdrillia sp. Casey 1903 snail
 Neogastropoda - Turridae
Trypanotoma longispira, Eopleurotoma lisboncola, "Protosurcula gabbi" = Protosurcula gabbii
"Protosurcula gabbi" = Protosurcula gabbii Conrad 1865 turrid
 Neogastropoda - Cochlespiridae
Cochlespira engonata
Cochlespira engonata Conrad 1865 snail
 Neogastropoda - Olividae
Ancilla staminea
Ancilla staminea Conrad 1832 olive snail
 Neogastropoda - Muricidae
Murotriton mcglameriae
 Neogastropoda - Volutidae
Athleta lisbonensis, Athleta haleanus, "Athleta petrosus" = Athleta petrosa
"Athleta petrosus" = Athleta petrosa Conrad 1833 volute
 Sorbeoconcha - Ficidae
"Ficopsis texana" = Ficus, "Ficopsis penita" = Ficus
"Ficopsis texana" = Ficus fig shell
"Ficopsis penita" = Ficus fig shell
 Sorbeoconcha - Rostellariidae
Calyptraphorus velatus
Calyptraphorus velatus Conrad 1833 snail
 Sorbeoconcha - Hipponicidae
Hipponix pygmaeus
 Sorbeoconcha - Naticidae
Naticidae indet.
Naticidae indet. Guilding 1834 moon snail
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium minutistriatum
Dentalium minutistriatum Gabb 1850 tusk shell