USGS 17757 (Cretaceous of the United States)

Also known as North side of Chesapeake and Delaware canal at station 53+200

Where: Delaware (39.5° N, 75.7° W: paleocoordinates 39.0° N, 45.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Merchantville Formation, Early/Lower Campanian (83.5 - 70.6 Ma)

Environment/lithology: marine

Preservation: concretion

Reposited in the USGS

• collected by C. W. Carter 1935-7

Primary reference: J. P. Owens, J. P. Minard, N. F. Sohl and F. James Mello. 1970. Stratigraphy of the outcropping post-Magothy Upper Cretaceous formations in Southern New Jersey an Northern Delmarva peninsula, Delaware and Maryland. USGS Professional Paper 674:1-60 [M. Kosnik/M. Kosnik/M. Kosnik]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6122: authorized by Matt Kosnik, entered by Matt Kosnik on 28.01.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
? Pleurocardia uniformis
Cardium (Trachycardium ?) uniformis Weller
Bivalvia
 Nuculida - Nuculidae
Leionucula ? whitfieldi nut clam
Nucula whitfieldi Weller?
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
Arca sp.
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
Glycymeris sp.
 Pectinida - Entoliidae
Syncyclonema conradi scallop
Syncyclonema conradi (Whitfield)
 Pectinida - Pectinoidae
Camptonectes bellisculptus scallop
Camptonectes bellisculptus (Conrad)
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi Weller non Conrad
 Cardiida - Tellinidae
"Linearia magnoliensis" = Linearis
"Linearia magnoliensis" = Linearis tellin clam
Linearia magnoliense Stephenson
 Cardiida - Cardiidae
Granocardium (Granocardium) sp. n. sp., "Granocardium (Criocardium) sp." = Criocardium
Granocardium (Granocardium) sp. n. sp. Gabb 1869 cockle
Cardium (Granocardium) n. sp. (Owens et al)
"Granocardium (Criocardium) sp." = Criocardium Conrad 1870 cockle
Cardium (Criocardium) sp.
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Caesticorbula crassiplica (Gabb)
 Poromyida - Poromyidae
Cymella bella clam
Cymella bella Conrad
cf. Liopistha protexta Conrad 1853 clam
Liopistha cf. L. protexta (Conrad)
Cephalopoda
 Ammonitida - Baculitidae
cf. Baculites minerensis Russell and Landes 1937 ammonite
Baculites cf. B. minerensis Landes
Gastropoda
 Cerithioidea - Turritellidae
Laxispira lumbricalis Gabb 1877 turret shell
Laxispira lumbricalis Gabb
Turritella merchantvillensis turret shell
Turritella merchantvillensis Weller
Turritella quadrilira Johnson 1898 turret shell
Haustator quadrilira (Johnson)
 Sorbeoconcha - Aporrhaidae
Graciliala sp. Sohl 1960 snail
Graciliala sp.
Graciliala johnsoni Stephenson 1923 snail
Graciliala johnsoni (Stephenson)
 Neogastropoda - Paladmetidae
Paladmete sp. n. sp. Gardner 1916 snail
Paladmete n. sp. (Owens et al)
 Neogastropoda - Fasciolariidae
Bellifusus sp. n. sp. Stephenson 1941 snail
Bellifusus n. sp. (Owens et al)