Pamunkey River (H76-64-8) (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, burrowed, gray, sandy siltstone

• "dark gray silty sand, sandier than below, with small burrows and sparse shell material. upper part contains burrows filled with green sandy clay."

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 1448: 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, 4 species, 1 specimen each
 Neotaenioglossa - Calyptraeidae
"Calyptraea aperta" = Calyptraea (Trochita) aperta
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Sorbeoconcha - Hipponicidae
Hipponix pygmaeus
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
misc. bivalves, 7 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 sp.
Nucula sp. Lamarck 1799 nut clam
 Pholadida - Corbulidae
Corbula extenuata, Corbula subengota, Anapteris regalis
Corbula extenuata 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
Tellina leana
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
 Mytilida - Mytilidae
Brachidontes sp.
Brachidontes sp. Swainson 1840 mussel
originally entered as "Brachiodontes sp."
 Pectinida - Pectinoidae
Eburneopecten cf. scintillatus
Eburneopecten cf. scintillatus Conrad 1854 scallop
originally entered as "Eburneopecten cf. scintillatus"
 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 "Pachecoa cf. decisa"
Barbatia rhomboidella Lea 1833 clam
 Arcida - Glycymerididae
Glycymeris ? idonea
Glycymeris ? idonea Conrad 1865 clam
originally entered as "Glycymeris ? idonea"
Rhynchonellata
 Terebratulida - Cryptonellidae
"Petria sp." = Petriathyris
"Petria sp." = Petriathyris
originally entered as "Petia sp."
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
coral sp. B