Pamunkey River (H76-64-2) (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 sandstone

• "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 1445: 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
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
Coral sp. B
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
misc. bivalves, 10 species, 1 specimen each.
 Arcida - Glycymerididae
Glycymeris idonea, Glycymeris trigonella
Glycymeris idonea Conrad 1865 clam
Glycymeris trigonella Conrad 1833 clam
minor
 Arcida - Arcidae
Pachecoa sp., Pachecoa cf. decisa, Pachecoa ellipsis, Barbatia rhomboidella
Pachecoa sp. Harris 1919 clam
sp. A
Pachecoa cf. decisa clam
originally entered as "Pachecoa cf. decisa"
Barbatia rhomboidella Lea 1833 clam
 Ostreida - Ostreidae
Cubitostrea sellaeformis
Cubitostrea sellaeformis Conrad 1832 oyster
 Ostreida - Pteriidae
Pteria ? limula
Pteria ? limula Conrad 1833 pearl oyster
originally entered as "Pteria ? limula"
 Pectinida - Pectinoidae
Eburneopecten cf. scintillatus, Chlamys wahtubbeana
Eburneopecten cf. scintillatus Conrad 1854 scallop
originally entered as "Eburneopecten cf. scintillatus"
Chlamys wahtubbeana Dall 1898 scallop
 Carditida - Astartidae
Lirodiscus virginianus
 Carditida - Carditidae
Venericardia sp., "Venericardia densata" = Venericardia (Venericor) densata
Venericardia sp. Lamarck 1801 clam
"Venericardia densata" = Venericardia (Venericor) densata Conrad 1845 clam
 Lucinida - Lucinidae
Lucina pomilia
 Pholadida - Corbulidae
Anapteris regalis, Caryocorbula deusseni, "Corbula subengonata" = Cuneocorbula subengonata
"Corbula subengonata" = Cuneocorbula subengonata Dall 1898 clam
 Cardiida - Cardiidae
Cardiidae indet.
Cardiidae indet. Lamarck 1809 cockle
Cardiid
 Cardiida - Tellinidae
Tellinidae indet., Tellina leana
Tellinidae indet. Blainville 1814 tellin clam
Tellinid
Tellina leana tellin clam
 Cardiida - Veneridae
Callista perovata, Pitar sp.
Callista perovata Conrad 1833 venus clam
Pitar sp. Römer 1857 venus clam
 Cardiida - Mactridae
Spisula parilis
Spisula parilis Conrad 1833 clam
 Nuculanida - Nuculanidae
Orthoyoldia psammotaea, Calorhadia semen, Calorhadia opulenta, Calorhadia bella, Saccella cf. catasarca, Nuculana coelatella
Orthoyoldia psammotaea Dall 1898 pointed nut clam
Calorhadia semen Lea 1883 pointed nut clam
Calorhadia opulenta pointed nut clam
Calorhadia bella pointed nut clam
Saccella cf. catasarca pointed nut clam
originally entered as "Saccella cf. catasarca"
Nuculana coelatella pointed nut clam
 Nuculida - Nuculidae
"Nucula ovula" = Nucula (Nucula) ovula
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
misc. gastropods, 6 species, 1 specimen each.
 Cerithioidea - Turritellidae
Turritella nasuta
Turritella nasuta turret shell
 Sorbeoconcha - Naticidae
Naticidae indet., ? Sinum sp.
Naticidae indet. Guilding 1834 moon snail
"Naticid sp."
? Sinum sp. Röding 1798 moon snail
originally entered as "? Sinum sp."
 Sorbeoconcha - Rostellariidae
Calyptraphorus velatus
Calyptraphorus velatus Conrad 1833 snail
nodovelatus
 Sorbeoconcha - Xenophoridae
Xenophora sp.
Xenophora sp. Fischer von Waldheim 1807 carrier shell
 Neotaenioglossa - Calyptraeidae
"Calyptraea aperta" = Calyptraea (Trochita) aperta, Crepidula dumosa
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
Crepidula dumosa Conrad 1834 slipper shell