Lake Carmel pit, 6.3-7.5 m [Michoud Fm] (Holocene of the United States)

Where: Orleans County, Louisiana (30.1° N, 90.0° W: paleocoordinates 30.1° N, 90.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Michoud Formation, Holocene (0.0 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Michoud Fm, which overlie unnamed equivalents of the Little Woods paleosol and Deweyville Fm (Pleistocene), and is overlain by the New Orleans barrier trend. AGE: Holocene. STRATIGRAPHIC POSITION: From 6.3-7.5 m in section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, silty claystone and unlithified, argillaceous siltstone

• ENVIRONMENT: Upper Bay-Sound.
• SPECIFIC LITHOLOGY: Silty clay to clayey silt, with occasional flat sand lenses. LITHIFICATION: Unlithified.

Size class: macrofossils

Preservation: original aragonite

Collected by Mollyn

Collection methods: surface (in situ),

• COLLECTOR: G. Mollyn. REPOSITORY: Unknown.

Primary reference: W. Miller III. 1983. Stratigraphy of newly exposed Quaternary sediments, eastern Orleans Parish, Louisiana. Tulane Studies in Geology and Paleontology 17(3-4):85-104 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92774: authorized by Austin Hendy, entered by Austin Hendy on 28.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
Gastropoda
 Heterostropha - Pyramidellidae
Turbonilla interrupta
Turbonilla interrupta Totten 1835 snail
 Neogastropoda - Nassariidae
Nassarius vibex, "Nassarius acutus" = Nassarius (Nassarius) acutus
Nassarius vibex Say 1822 snail
"Nassarius acutus" = Nassarius (Nassarius) acutus Say 1822 snail
 Neogastropoda - Terebridae
Hastula salleana
Hastula salleana Deshayes 1859 auger snail
 Sorbeoconcha - Naticidae
Neverita duplicatus
Neverita duplicatus Say 1822 moon snail
Bivalvia
 Nuculanida - Nuculanidae
Nuculana concentrica
Nuculana concentrica Say 1824 Concentric Nut Clam
 Arcida - Arcidae
"Anadara ovalis" = Lunarca ovalis
"Anadara ovalis" = Lunarca ovalis Bruguiere 1789 ark
 Pholadida - Pholadidae
Cyrtopleura costata, Barnea truncata
Cyrtopleura costata Linnaeus 1758 clam
Barnea truncata Say 1822 clam
 Pholadida - Myidae
Paramya subovata
Paramya subovata Conrad 1845 softshell clam
 Cardiida - Anatinellidae
Raeta plicatella
Raeta plicatella Lamarck 1818 clam
 Cardiida - Mactridae
Mulinia lateralis
Mulinia lateralis Say 1822 clam
 Cardiida - Veneridae
Cyclinella tenuis, "Petricola pholadiformis" = Petricolaria pholadiformis, Dosinia discus, "Agriopoma texasiana" = Callocardia (Agriopoma) texasiana
Cyclinella tenuis Récluz 1852 venus clam
"Petricola pholadiformis" = Petricolaria pholadiformis Lamarck 1818 venus clam
Dosinia discus Reeve 1850 venus clam
"Agriopoma texasiana" = Callocardia (Agriopoma) texasiana Dall 1892 venus clam
 Cardiida - Ungulinidae
Diplodonta cf. soror
Diplodonta cf. soror Adams 1852 clam
 Cardiida - Tellinidae
Macoma constricta, Macoma tenta, "Tellina alternata" = Tellina (Eurytellina) alternata, "Tellina texana" = Angulus texanus
Macoma constricta Bruguière 1792 tellin clam
Macoma tenta Say 1834 tellin clam
"Tellina alternata" = Tellina (Eurytellina) alternata Say 1822 tellin clam
"Tellina texana" = Angulus texanus Dall 1900 tellin clam
 Cardiida - Semelidae
Abra aequalis
Abra aequalis Say 1822 abra
 Solenida - Pharidae
Ensis minor
Ensis minor Dall 1899 clam