USGS 17736 (Cretaceous of the United States)

Also known as North side of Chesapeake and Delaware canal at station 53+500

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

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 6120: authorized by Matt Kosnik, entered by Matt Kosnik on 28.01.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Echinoidae indet.
echinoid indet.
Cephalopoda
 Ammonitida - Placenticeratidae
Placenticeras placenta DeKay 1828 ammonite
Placenticeras placenta (Dekay)
Gastropoda
 Seguenzioidea - Eucyclidae
Calliomphalus (Calliomphalus) paucispirilus Sohl 1964 snail
Calliomphalus (Calliomphalus) paucispirilus Sohl
 Cerithioidea - Turritellidae
Turritella merchantvillensis turret shell
Turritella merchantvillensis Weller
cf. Turritella merchantvillensis turret shell
Turritella cf. T. merchantvillensis Weller
 Sorbeoconcha - Aporrhaidae
Graciliala johnsoni Stephenson 1923 snail
Graciliala johnsoni (Stephenson)
 Neogastropoda - Paladmetidae
cf. Paladmete cancellaria Conrad 1858 snail
Paladmete cf. P. cancellaria Conrad
Bivalvia
 Arcida - Arcidae
Breviarca sp. Conrad 1872 clam
Breviarca sp.
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
Idonearca sp. - owens
 Ostreida - Pinnidae
Pinna sp. Linnaeus 1758 oyster
Pinna sp.
Pinna laqueata Conrad 1858 oyster
Pinna laqueata Conrad
 Cardiida - Cardiidae
Granocardium (Granocardium) dumosum Conrad 1870 cockle
Cardium (Granocardium) dumosum Conrad
Granocardium (Granocardium) tenuistriatum Whitfield 1885 cockle
Cardium (Granocardium) tenuistriatum (Whitfield)
 Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789 clam
Trigonia sp.