Pamunkey River (H76-64-5) (Eocene of the United States)

Also known as H76-64

Where: Hanover County, Virginia (37.5° N, 76.8° W: paleocoordinates 37.5° N, 64.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Nanjemoy Formation, Lutetian (47.8 - 41.3 Ma)

• Upper Lisbon equivalent

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, gray, green, argillaceous, silty siltstone

• "tough, gray-green clay-sand; very fossiliferous with shells becoming smaller and more scattered up section. upper contact transitional with overlying bed."

Collection methods: bulk, mechanical, sieve,

Primary reference: T. A. Hansen. 1978. Ecological control of evolutionary rates in Paleocene - Eocene marine molluscs. Ph.D. Thesis, Yale University 1-310 [T. Hansen/M. Sommers/A. Clement]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 1447: authorized by Thor Hansen, entered by Mike Sommers on 15.04.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Scaphopoda
 Gadilida - Gadilidae
Cadulus sp.
Cadulus sp. Philippi 1844 tusk shell
 Dentaliida - Dentaliidae
Dentalium sp.
Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
misc. gastropods, 10 species, 1 specimen each.
 Neotaenioglossa - Calyptraeidae
"Calyptraea aperta" = Calyptraea (Trochita) aperta, Crepidula dumosa
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
Crepidula dumosa Conrad 1834 slipper shell
 Cerithioidea - Turritellidae
Turritella nasuta
Turritella nasuta turret shell
 Sorbeoconcha - Naticidae
Naticidae indet., Polinices aratus
Naticidae indet. Guilding 1834 moon snail
"Naticid sp."
Polinices aratus moon snail
 Sorbeoconcha - Rostellariidae
Calyptraphorus velatus
Calyptraphorus velatus Conrad 1833 snail
 Sorbeoconcha - Hipponicidae
Hipponix pygmaeus
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
misc. bivalves, 10 species, 1 specimen each.
 Nuculanida - Nuculanidae
Nuculanidae indet., Calorhadia semen, Calorhadia opulenta, Calorhadia bella, Orthoyoldia psammotaea, Nuculana coelatella
Nuculanidae indet. Adams and Adams 1858 pointed nut clam
"Nuculanid sp."
Calorhadia semen Lea 1883 pointed nut clam
Calorhadia opulenta pointed nut clam
Calorhadia bella pointed nut clam
Orthoyoldia psammotaea Dall 1898 pointed nut clam
Nuculana coelatella pointed nut clam
 Nuculida - Nuculidae
"Nucula ovula" = Nucula (Nucula) ovula
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam
 Pholadida - Corbulidae
Notocorbula texana, Caryocorbula deusseni, Anapteris regalis, "Corbula subengonata" = Cuneocorbula subengonata
Notocorbula texana Gabb 1860 clam
"Corbula subengonata" = Cuneocorbula subengonata Dall 1898 clam
 Cardiida - Ungulinidae
Diplodonta ungulina
Diplodonta ungulina Conrad 1833 clam
 Cardiida - Veneridae
Callista perovata
Callista perovata Conrad 1833 venus clam
 Cardiida - Mactridae
Spisula praetenuis, Spisula parilis
Spisula praetenuis Conrad 1833 clam
Spisula parilis Conrad 1833 clam
 Cardiida - Tellinidae
Tellinidae indet., Tellina leana
Tellinidae indet. Blainville 1814 tellin clam
"Tellinid sp."
Tellina leana tellin clam
 Lucinida - Lucinidae
Lucinidae indet., ? Myrtea cf. curta, Lucina pomilia
Lucinidae indet. Fleming 1828 clam
"Lucinid sp. A"
? Myrtea cf. curta clam
originally entered as "? Myrtaea cf. curta"
 Carditida - Crassatellidae
Crassinella minor
Crassinella minor Lea 1833 clam
 Carditida - Carditidae
Venericardia sp., "Venericardia densata" = Venericardia (Venericor) densata
Venericardia sp. Lamarck 1801 clam
"Venericardia densata" = Venericardia (Venericor) densata Conrad 1845 clam
 Pectinida - Pectinoidae
Eburneopecten cf. scintillatus, Chlamys wahtubbeana
Eburneopecten cf. scintillatus Conrad 1854 scallop
originally entered as "Eburneopecten cf. scintillatus"
Chlamys wahtubbeana Dall 1898 scallop
 Ostreida - Ostreidae
Cubitostrea sellaeformis
Cubitostrea sellaeformis Conrad 1832 oyster
 Arcida - Arcidae
Pachecoa sp., Pachecoa ellipsis, Pachecoa cf. decisa, Barbatia rhomboidella
Pachecoa sp. Harris 1919 clam
sp. A
Pachecoa cf. decisa clam
originally entered as "Pacheocoa cf. decisa"
Barbatia rhomboidella Lea 1833 clam
 Arcida - Glycymerididae
Glycymeris idonea
Glycymeris idonea Conrad 1865 clam