Jones Wharf, Zone 17-18 (Miocene of the United States)

Also known as Drumcliff

Where: St. Mary's County, Maryland (38.4° N, 76.6° W: paleocoordinates 38.6° N, 73.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Drumcliff Member (Choptank Formation), Serravallian (13.8 - 11.6 Ma)

Environment/lithology: shoreface; brown, green sandstone

• Mollusk-dense pale yellow-brown to pale orange well-sorted sand; sub-tropical to temperate, in a current-swept channel-like basin. Overlain by a finer-grained sand and silt of deeper, stiller, possibly inner-bay waters.
• brownish or greenish fossiliferous sand

Size class: macrofossils

Primary reference: R. Kellogg. 1965. The Miocene Calvert sperm whale Orycterocetus. Bullten of the United States National Museum 247(2):47-63 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60376: authorized by Mark Uhen, entered by Mark Uhen on 11.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Gastropoda
 Cerithioidea - Turritellidae
"Turritella plebeia" = Mariacolpus plebeia2 Say 1824 turret shell
Turritella subvariabilis4 d'Orbigny 1852 turret shell
subspecies subvariabilis
 Neogastropoda - Muricidae
Ecphora quadricostata2 Conrad 1830 murex snail
var. umbilicata
Ecphora meganae4 Ward and Gilinsky 1988 murex snail
subspecies meganae
 Neogastropoda - Volutidae
Scaphella virginiana4 Conrad 1842 volute
Bivalvia
 Arcida - Arcidae
Dallarca elnia4, "Arca staminea" = Dallarca staminea2
Dallarca elnia4 Glenn 1904 clam
"Arca staminea" = Dallarca staminea2 Say 1832 clam
 Pectinida - Pectinoidae
"Chesapecten (Christinapecten) marylandica" = Placopecten marylandica4, "Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens4, "Pecten madisonius" = Chesapecten madisonius2
"Chesapecten (Christinapecten) marylandica" = Placopecten marylandica4 Wagner 1839 scallop
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens4 Ward and Blackwlder 1975 scallop
"Pecten madisonius" = Chesapecten madisonius2 Say 1824 scallop
 Ostreida - Malleidae
"Melina maxillata" = Isognomon maxillata2 Lamarck 1819 oyster
 Lucinida - Lucinidae
Lucinoma contracta4 Say 1824 clam
Stewartia anodonta4 Say 1824 clam
 Pholadida - Corbulidae
"Corbula idonea" = Bicorbula idonea2, "Bicorbula idonea" = Bicorbula idonea4
"Corbula idonea" = Bicorbula idonea2 Conrad 1833 clam
"Bicorbula idonea" = Bicorbula idonea4 Conrad 1833 clam
 Cardiida - Glossidae
Glossus marylandica4 Schoonover 1941 clam
 Cardiida - Veneridae
"Pleiorytis calvertensis" = Petricola (Petricolaria) calvertensis4 Dall 1900 venus clam
Macrocallista marylandica2 Conrad 1833 venus clam
Dosinia acetabulum2 Conrad 1832 venus clam
Mercenaria cuneata4 Conrad 1869 quahog
 Cardiida - Ungulinidae
Timothynus subvexa4 Conrad 1833 clam
 Cardiida - Mactridae
Leptomactra marylandica4 Dall 1898 clam
 Cardiida - Cardiidae
"Cardium laqueatum" = Chesacardium laqueatum2, "Chesacardium laqueatum" = Chesacardium laqueatum4
"Cardium laqueatum" = Chesacardium laqueatum2 Conrad 1830 cockle
"Chesacardium laqueatum" = Chesacardium laqueatum4 Conrad 1830 cockle
subspecies blackwelderi
 Cardiida - Tellinidae
Florimetis biplicata4 Conrad 1834 tellin clam
 Hiatellida - Hiatellidae
Panopea goldfussii4 Wagner 1839 clam
 Carditida - Astartidae
Astarte thisphila4 Glenn 1904 clam
 Carditida - Crassatellidae
Marvacrassatella turgidula4 Conrad 1843 clam
Malacostraca
 Decapoda -
Cancroidea indet.1 Latreille 1802 crab
Thecostraca
 Balanomorpha - Balanidae
"Balanus concavus" = Concavus concavus2
"Balanus concavus" = Concavus concavus2 Bronn 1831 barnacle
Echinoidea
 Clypeasteroida - Abertellidae
"Scutella aberti" = Abertella aberti2
"Scutella aberti" = Abertella aberti2 Conrad 1842 sand dollar
Chondrichthyes
 Carcharhiniformes - Carcharhinidae
"Galeocerdo contortus" = Physogaleus contortus3
"Galeocerdo contortus" = Physogaleus contortus3 Gibbes 1847 requiem shark
 Carcharhiniformes - Hemigaleidae
Hemipristis serra3 Agassiz 1835 ground shark
Mammalia
 Cetacea - Physeteridae
Orycterocetus crocodilinus Cope 1867 sperm whale