PBDB Collection

USGS 28822 (Cretaceous of the United States)

Also known as Excavation for abutments of new segment of Penn Central Railroad's Chesapeake and Delaware canal bridge

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

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Marshalltown Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

Environment/lithology: marine

Reposited in the USGS

• Collected by N. F. Sohl, R. W. Imlay, J. Wolfe 1963

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 6157: authorized by Matt Kosnik, entered by Matt Kosnik on 30.01.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Bivalvia
Nuculida - Nuculidae	Nucula percrassa Nucula percrassa nut clam Nucula percrassa species group
Nuculanida - Nuculanidae	Nuculana sp. Nuculana sp. Link 1807 pointed nut clam Nuculana sp.
Trigoniida - Megatrigonioidae	"Scabrotrigonia thoracia" = Pterotrigonia (Scabrotrigonia) "Scabrotrigonia thoracia" = Pterotrigonia (Scabrotrigonia) clam Trigonia thoracia Morton of Weller
Carditida - Carditidae	Vetericardiella sp. Vetericardiella sp. Chavan 1969 clam Vetericardia sp.
Carditida - Crassatellidae	cf. Crassatella vadosa cf. Crassatella vadosa Morton 1834 clam Crassatella cf. C. vadosa Morton
Hiatellida - Hiatellidae	Panopea decisa Panopea decisa clam Panopea decisa Conrad
Cardiida - Cardiidae	Granocardium (Granocardium) dumosum, Cardium sp. Granocardium (Granocardium) dumosum Conrad 1870 cockle Cardium (Granocardium) dumosum Conrad Cardium sp. Linnaeus 1758 cockle Cardium spp.
Cardiida - Veneridae	cf. Aphrodina tippana, Cyprimeria excavata cf. Aphrodina tippana venus clam Aphrodina cf. A. tippana Conrad Cyprimeria excavata venus clam Cyprimeria excavata (Morton)
Cardiida - Mactridae	Cymbophora sp. Cymbophora sp. Gabb 1869 clam Cymbophora sp.
Cardiida - Arcticidae	Veniella conradi, Tenea sp. Veniella conradi Morton 1833 clam Veniella conradi Morton of Weller Tenea sp. Conrad 1870 clam Tenea sp.
Lucinida - Mactromyidae	cf. Unicardium umbonatum cf. Unicardium umbonatum clam Umbonicardium cf. U. umbonatum (Whitfield)
Lucinida - Lucinidae	cf. Nymphalucina parva cf. Nymphalucina parva clam Lucina cf. L. parva Stephenson
Arcida - Parallelodontidae	Nemodon sp. Nemodon sp. Conrad 1869 clam Nemodon sp. (large)
Arcida - Cucullaeidae	cf. Cucullaea tippana cf. Cucullaea tippana Conrad 1858 clam Cucullaea cf. C. tippana Conrad of Weller
Pectinida - Pectinoidae	Pecten sp., Camptonectes bellisculptus, cf. Lyriochlamys sp. n. sp. Pecten sp. Müller 1776 scallop Pecten sp. Camptonectes bellisculptus scallop Camptonectes bellisculptus (Conrad) cf. Lyriochlamys sp. n. sp. Sobetski 1977 scallop Chlamys n. sp. cf. C. cretosus DeFrance (Owens et al)
Pectinida - Neitheoidae	Neithea quinquecostata Neithea quinquecostata Sowerby 1814 scallop Neithea quinquecostata Sowerby of Weller
Pectinida - Anomiidae	Paranomia scabra, Anomia argentaria Paranomia scabra scallop Paranomia scabra Morton Anomia argentaria Morton 1833 jingle Anomia argentaria Morton
Pectinida - Limidae	Lima lorillardensis Lima lorillardensis file clam Lima lorillardensis Weller
Ostreida - Ostreidae	Ostrea sp. Ostrea sp. Linnaeus 1758 oyster Ostrea sp.
Ostreida - Flemingostreidae	Agerostrea falcata, Agerostrea mesenterica Agerostrea falcata Morton 1827 oyster Lopha falcata (Morton) Agerostrea mesenterica Morton 1834 oyster Ostrea mesenterica Morton
Ostreida - Gryphaeidae	Gryphaeostrea vomer, Exogyra ponderosa, Exogyra ponderosa erraticostata, Pycnodonte mutabilis Gryphaeostrea vomer Morton 1828 oyster Gryphaeostrea vomer Morton Exogyra ponderosa oyster Exogyra ponderosa Roemer Exogyra ponderosa erraticostata Say 1820 oyster Exogyra ponderosa erraticostata Stephenson Pycnodonte mutabilis oyster Pyncnodonte mutabilis Morton
Gastropoda
Patellogastropoda - Patellidae	Patella tentorium Patella tentorium limpet Patella tentorium Morton
Architaenioglossa - Ampullinidae	"Pseudamaura meekana" = Ampullina (Pseudamaura) "Pseudamaura meekana" = Ampullina (Pseudamaura) snail Amauropsis meekana Whitfield
Sorbeoconcha - Naticidae	Gyrodes abyssinus, Gyrodes vetrosus Gyrodes abyssinus moon snail Gyrodes abyssinus (Morton) Gyrodes vetrosus moon snail Gyrodes vetrosus (Morton)
Sorbeoconcha - Aporrhaidae	? Anchura sp. ? Anchura sp. Conrad 1860 snail Anchura ? sp.
Neogastropoda - Paladmetidae	Paladmete ? cancellaria Paladmete ? cancellaria Conrad 1858 snail Paladmete cancellaria (Conrad) ?
Neogastropoda - Volutidae	Longoconcha sp. Longoconcha sp. Stephenson 1941 volute Longoconcha sp.
Neogastropoda - Pyropsidae	Pyropsis sp. Pyropsis sp. Conrad 1860 snail Pyropsis sp.
Neogastropoda - Fasciolariidae	Hercorhyncus sp. Hercorhyncus sp. Conrad 1868 snail Hercorhynchus sp.
Neogastropoda - Turbinellidae	cf. Napulus reesidei cf. Napulus reesidei Sohl 1964 snail Napulus cf. N. reesidei Sohl
Cerithioidea - Turritellidae	cf. Haustator lenolensis, Turritella sp., cf. Turritella tippana, Turritella quadrilira, "Haustator trilira" = Turritella trilira cf. Haustator lenolensis turret shell Haustator cf. H. lenolensis Weller Turritella sp. Lamarck 1799 turret shell Turritella sp. cf. Turritella tippana Conrad 1858 turret shell Turritella cf. T. tippana Conrad Turritella quadrilira Johnson 1898 turret shell Haustator quadrilira Johnson "Haustator trilira" = Turritella trilira Conrad 1860 turret shell Haustator trilira Conrad
Heterostropha - Architectonicidae	Margaritella sp. Margaritella sp. Meek and Hayden 1860 snail Margaritella sp.
Heterostropha - Ringiculidae	Avellana bullata Avellana bullata snail Avellana bullata (Morton)
Heterostropha - Acteonidae	Acteon cretacea Acteon cretacea snail Acteon cretacea Gabb
Heterostropha - Mathildidae	Gegania sp. Gegania sp. Jeffreys 1884 snail Tuba sp.
Opisthobranchia - Bullidae	Bulla macrostromata Bulla macrostromata snail Bulla macrostromata (Gabb)
Cephalopoda
Ammonitida - Nostoceratidae	? Didymoceras sp. ? Didymoceras sp. Hyatt 1900 ammonite Didymoceras ? sp.
Demospongiae
Clavulina - Clionaidae	Cliona sp. Cliona sp. demosponge Clione sp.