M 661 (Paleocene of the United States)

Where: Monroe County, Alabama (31.8° N, 87.4° W: paleocoordinates 34.3° N, 70.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bells Landing Marl Member (Tuscahoma Formation), Thanetian (59.2 - 56.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, glauconitic, argillaceous sandstone

• Environment from PBDB # 90141.
• Lithology from PBDB # 90141 very fine grained, unlithified glauconitic clayey sand

Size class: mesofossils

Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98365: authorized by Jocelyn Sessa, entered by Laurie Eccles on 04.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Pholadida - Pholadidae
 Pholadida - Corbulidae
"Corbula subengonata" = Cuneocorbula subengonata Dall 1898 clam
Vokesula aldrichi Meyer 1885 clam
 Cardiida - Sportellidae
Basterotia prima Aldrich 1921 clam
 Cardiida - Cardiidae
 Cardiida - Psammobiidae
 Cardiida - Semelidae
 Cardiida - Tellinidae
Tellina bellsiana tellin clam
Tellina semirotunda tellin clam
 Cardiida - Veneridae
Pitar (Pitar) nuttalliopsis venus clam
including Pitar (Pitar) nuttalliopsis greggi
 Carditida - Crassatellidae
Crassatella tumidula Whitfield 1865 clam
 Carditida - Carditidae
Venericardia "spp. H", Venericardia (Venericor) aposmithi, "Venericardia (Leuroactis) pilsbryi" = Venericardia (Venericor) pilsbryi, "Venericardia (? Venericor) greggiana" = Venericardia (Baluchicardia) greggiana
Venericardia "spp. H" Lamarck 1801 clam
"Venericardia (Leuroactis) pilsbryi" = Venericardia (Venericor) pilsbryi Stewart 1930 clam
"Venericardia (? Venericor) greggiana" = Venericardia (Baluchicardia) greggiana Dall 1903 clam
 Pectinida - Pectinoidae
"Chlamys greggi" = Dhondtichlamys greggi
"Chlamys greggi" = Dhondtichlamys greggi Harris 1897 scallop
 Arcida - Cucullaeidae
Cucullaea (Cyphoxis) gigantea Conrad 1862 clam
Cucullaea (Cyphoxis) gigantea "var."
 Nuculanida - Nuculanidae
Yoldia (Calorhadia) pharcida Dall 1898 pointed nut clam
Gastropoda
 Sorbeoconcha - Rostellariidae
 Sorbeoconcha - Ficidae
 Neogastropoda - Melongenidae
 Neogastropoda - Nassariidae
 Neogastropoda - Fasciolariidae
 Cerithioidea - Turritellidae
Mesalia alabamiensis De Gregorio 1890 turret shell
 Heterostropha - Pyramidellidae