Essex Mill, Zone 24 (Miocene of the United States)

Also known as Essex Millpond

Where: Essex County, Virginia (37.9° N, 76.8° W: paleocoordinates 38.0° N, 74.8° W)

• coordinate estimated from map

When: Windmill Point Member (Saint Marys Formation), Tortonian (11.6 - 7.2 Ma)

Environment/lithology: marine; gray, green, silty sandstone

• sand, very fine, silty, olive-gray

Size class: macrofossils

Primary reference: L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 71632: authorized by Mark Uhen, entered by Mark Uhen on 02.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Arcidae
Dallarca idonea Conrad 1832 clam
 Pectinida - Pectinoidae
Chesapecten santamaria Tucker 1934 scallop
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Ostreida - Malleidae
 Carditida - Astartidae
Astarte perplana Conrad 1840 clam
 Cardiida - Glossidae
Glossus santamaria Ward 1992 clam
 Cardiida - Mactridae
Mactrodesma subponderosa d'Orbigny 1852 clam
Leptomactra delumbis Conrad 1832 clam
 Cardiida - Veneridae
Mercenaria tetrica Conrad 1838 quahog
"Lirophora alveata" = Lirophora (Lirophora) alveata Conrad 1831 venus clam
Dosinia acetabulum Conrad 1832 venus clam
subspecies thori
 Cardiida - Cardiidae
Chesacardium laqueatum Conrad 1830 cockle
subspecies laqueatum
 Hiatellida - Hiatellidae
Panopea goldfussii Wagner 1839 clam
 Lucinida - Lucinidae
Lucinoma contracta Say 1824 clam
Gastropoda
 Ptenoglossa - Fasciolariidae
Buccinofusus parilis Conrad 1832 snail
 Neogastropoda - Nassariidae
Bulliopsis quadrata Conrad 1830 snail
 Neogastropoda - Melongenidae
Busycotypus coronatum Conrad 1840 whelk
Busycotypus rugosum Conrad 1843 whelk
 Neogastropoda - Muricidae
Urosalpinx subrusticus d'Orbigny 1852 murex snail
Ecphora gardnerae Wilson 1987 murex snail
subspecies gardnerae
 Neogastropoda - Conidae
Conus deluvianus Green 1830 cone shell
 Neogastropoda - Terebridae
"Terebra simplex" = Laevihastula simplex
"Terebra simplex" = Laevihastula simplex Conrad 1830 auger snail
 Sorbeoconcha - Turritellidae
Turritella subvariabilis d'Orbigny 1852 turret shell
subspecies subvariabilis
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell
subspecies plebeia