USGS 26634, 27749 (Cretaceous of the United States)

Also known as South bank Chesapeake and Delaware canal, about 300 yd west of light 13 and 1.3 miles (airline) due east of St. Georges Bridge

Where: New Castle County, Delaware (39.6° N, 75.7° W: paleocoordinates 39.0° N, 45.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Mount Laurel Sand Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

Environment/lithology: marine

Reposited in the USGS

• Collected by Sohl 1957, Collected by Sohl 1960, collections reported together, unable to divide.

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 6171: authorized by Matt Kosnik, entered by Matt Kosnik on 01.02.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Cidaroidae indet.
Crinoidae indet.
Comatulid crinoid
Crab indet.
Crab claw
 Terebratulida - Cancellothyrididae
Terebratulina cooperi
Terebratulina cooperi Richards and Shapiro
 Lingulida - Lingulidae
? Lingula sp. Bruguiére 1797
Lingula? sp.
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
 Serpulimorpha -
Hamulus onyx Morton 1834
Hamulus onyx Morton
 Arcida - Arcidae
cf. Arca macnairyensis ark
Arca cf. A. macnairyensis Gabb
Arca sp. n. sp. Linnaeus 1758 ark
Arca n. sp. (Owens et al)
Breviarca ? richardsi clam
Breviarca richardsi Harbison ?
Barbatia sp. Gray 1842 clam
Barbatia sp.
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
Glycymeris sp.
Postligata crenata clam
Postiligata crenata Wade
Postligata wordeni clam
Postiligata wordeni Gardner
 Arcida - Parallelodontidae
Nemodon eufaulensis clam
Nemodon eufaulensis Gabb [entered as Nemodon eufaulensis]
Nemodon sp. Conrad 1869 clam
Nemodon sp.
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
Cucullaea sp.
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam
Inoceramus sp.
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncyclonema simplicius Conrad
 Pectinida - Pectinoidae
Neithea quinquecostata Sowerby 1814 scallop
Neithea quinquecostata Sowerby
"? Microchlamys (Pecten) venustus" = Dhondtichlamys scallop
Pecten (Pecten?) venustus Morton
Radiopecten mississippiensis scallop
Radiopecten mississippiensis (Conrad)
 Pectinida - Limidae
Pseudolimea reticulata file clam
Lima reticulata Lyell and Forbes
Lima sp. Bruguière 1797 file clam
Lima sp.
 Pectinida - Plicatulidae
Plicatula mullicaensis scallop
Plicatula mullicanensis Weller
 Pectinida - Anomiidae
Anomia tellinoides jingle
Anomia tellinoides Morton
Anomia argentaria Morton 1833 jingle
Anomia argentaria Morton
Paranomia scabra scallop
Paranomia scabra Morton
 Ostreida - Gryphaeidae
Pycnodonte mutabilis oyster
Pyncnodonte mutabilis Morton
Exogyra cancellata oyster
Exogyra cancellata Stephenson
Gryphaeostrea vomer Morton 1828 oyster
Gryphaeostrea vomer Morton
 Ostreida - Flemingostreidae
Agerostrea mesenterica Morton 1834 oyster
Lopha mesenterica Morton
Agerostrea falcata Morton 1827 oyster
Lopha falcata Morton
Acutostrea plumosa oyster
Ostrea plumosa Morton
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Ostrea sp.
 Ostreida - Bakevelliidae
Gervilliopsis sp. Whitfield 1885 oyster
Gervilliopsis sp.
 Mytilida - Mytilidae
Lithophaga sp. Röding 1798 mussel
Lithophaga sp.
 Carditida - Carditidae
aff. Vetericardiella subcircula clam
Vetericardia aff. V. subcircula Wade
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Caesticorbula crassiplica (Gabb)
 Cardiida - Gastrochaenidae
Eufistulana sp. Eames 1951 clam
Kummelia sp. - owens
 Cardiida - Arcticidae
Etea sp. Conrad 1873 clam
Etea sp.
Veniella conradi Morton 1833 clam
Veniella conradi Morton
 Cardiida - Mactridae
Cymbophora subtilis clam
Cymbophora subtilis Stephenson
Cymbophora sp. Gabb 1868 clam
Cymbophora spp.
 Cardiida - Veneridae
Legumen sp. Conrad 1858 venus clam
Legumen sp.
? Aphrodina eufaulensis venus clam
Aphrodina? eufaulensis (Conrad) of Wade
 Cardiida - Tellinidae
"Linearia metastriata" = Linearis, "Linearia sp. n. sp." = Linearis, cf. Sourimis georgiana
"Linearia metastriata" = Linearis tellin clam
Linearia metastriata Conrad
"Linearia sp. n. sp." = Linearis Conrad 1860 tellin clam
Linearia n. sp. (large) (Owens et al)
cf. Sourimis georgiana Gabb 1876 tellin clam
Tellina cf. T. georgiana Gabb
 Cardiida - Cardiidae
"Brevicardium parahillanum" = Nemocardium (Brevicardium), "Pleuriocardia (Trachycardium) eufaulensis" = Trachycardium eufaulensis, Cardium sp., Granocardium (Granocardium) dumosum
"Brevicardium parahillanum" = Nemocardium (Brevicardium) cockle
Brevicardium parahillanum (Wade)
"Pleuriocardia (Trachycardium) eufaulensis" = Trachycardium eufaulensis Conrad 1860 cockle
Cardium (Trachycardium) eufaulensis Conrad
Cardium sp. Linnaeus 1758 cockle
Cardium spp.
Granocardium (Granocardium) dumosum Conrad 1870 cockle
Cardium (Granocardium) dumosum Conrad
 Poromyida - Poromyidae
Liopistha protexta Conrad 1853 clam
Liopistha protexia (Conrad)
 Poromyida - Cuspidariidae
Cuspidaria sp. Dall 1886 clam
Cuspidaria sp.
cf. Cuspidaria grandis Stephenson 1941 clam
Cuspidaria cf. C. grandis Stephenson
 Lucinida - Lucinidae
Nymphalucina parva clam
Lucina parva Stephenson
 Lucinida - Mactromyidae
Clisocolus sp. Gabb 1868 clam
Unicardium sp.
 Trigoniida - Megatrigonioidae
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia)
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia) clam
Trigonia eufaulensis Gabb
 Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789 clam
Trigonia sp.
 Protobranchia -
Malletia longifrons clam
Nuculana longifrons (Conrad)
Malletia stephensoni clam
Perissonata stephensoni (Richards)
cf. Malletia ? protexta clam
Perissonata cf. P. protexta Gabb?
 Ptenoglossa - Epitoniidae
cf. Belliscala creideri wentletrap
Belliscala cf. B. creideri Stephenson
 Euomphalina - Euomphalidae
Weeksia sp. Stephenson 1941 snail
Weeksia sp.
 Opisthobranchia - Cylichnidae
Cylichna sp. Lovén 1846 snail
Cylichna sp.
Cylichna secalina Shumard 1861 snail
Cylichna secalina Shumard
 Architaenioglossa - Ampullinidae
"Pseudamaura lirata" = Ampullina (Pseudamaura)
"Pseudamaura lirata" = Ampullina (Pseudamaura) snail
Pseudomaura lirata (Wade)
 Prosobranchia - Acteoninidae
cf. Parietiplicatum conicum Wade 1926 snail
Parietiplicatum cf. P. conicum (Wade)
Eoacteon percultus Sohl 1964 snail
Eoacteon percultus Sohl
 Neogastropoda - Fasciolariidae
Anomalofusus ? substriatus Wade 1916 snail
Anomalofusus substriatus Wade?
? Remera sp. Stephenson 1941 snail
Remera? sp.
Bellifusus curvicostatus Wade 1926 snail
Bellifusus curvicostatus (Wade)
Woodsella typica Wade 1926 snail
Woodsella typica Wade
 Neogastropoda - Cancellariidae
Caveola sp. Stephenson 1941 snail
Caveola sp.
 Neogastropoda - Paladmetidae
Paladmete gardnerae Wade snail
Paladmete gardnerae Wade
 Neogastropoda - Volutidae
Longoconcha sp. Stephenson 1941 volute
Longoconcha sp.
Volutomorpha sp. Gabb 1877 volute
Volutomorpha sp.
 Neogastropoda - Tudiclidae
cf. Pyropsis perlata Conrad 1860 snail
Pyropsis cf. P. perlata Conrad
 Neogastropoda - Turbinellidae
Napulus reesidei Sohl 1964 snail
Napulus reesidei Sohl
 Neogastropoda - Muricidae
Sargana sp. Stephenson 1923 murex snail
Sargana sp.
 Neogastropoda - Turridae
Beretra sp. Stephenson 1941 turrid
Beretra sp.
 Stromboidea - Aporrhaidae
Drepanochilus sp. Meek 1864 snail
Drepanochilus sp.
cf. Pterocerella poinsettiformis snail
Pterocerella cf. P. poinsettiformis Stephenson
 Naticoidea - Naticidae
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum Conrad
Amaurellina stephensoni moon snail
Amaurellina stephensoni (Wade)
Gyrodes abyssinus moon snail
Gyrodes abyssinus (Morton)
Gyrodes sp. Conrad 1860 moon snail
Gyrodes sp.
 Xenophoroidea - Xenophoridae
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa Morton 1834 carrier shell
Xenophora cf. X. leprosa Morton
 Sorbeoconcha - Turritellidae
Laxispira monilifera Sohl 1964 turret shell
Laxispira monilifera Sohl
Turritella sp. Lamarck 1799 turret shell
Turritella sp.
? Turritella vertebroides Morton 1834 turret shell
Turritella vertebroides Morton?
"Haustator trilira" = Turritella trilira Conrad 1860 turret shell
Haustator trilira Conrad
 Sorbeoconcha - Cerithiidae
Cerithium weeksi Wade 1926 cerith snail
Cerithium weeksi Wade
 Heterostropha - Acteonidae
Acteon sp. Montfort 1810 snail
Acteon sp.
 Heterostropha - Mathildidae
Gegania sp. Jeffreys 1884 snail
Tuba sp.
 Basommatophora - Siphonariidae
? Anisomyon jessupi pulmonate
Anisomyon? jessupi Richards and Shapiro
 Architectonicoidea - Architectonicidae
Margaritella sp. Meek and Hayden 1860 snail
Margaritella sp.
cf. Architectonica voragiformis sundial
Architectonica cf. A. voragiformis Stephenson
Pseudomalaxis sp. Fischer 1850 snail
Pseudomalaxis sp.
 Seguenzioidea - Calliotropidae
Calliomphalus (Calliomphalus) ? americanus snail
Calliomphalus (Calliomphalus) americanus Wade?
cf. Calliomphalus (Calliomphalus) nudus snail
Calliomphalus (Calliomphalus) cf. C. (C.) nudus Sohl
Calliomphalus (Calliomphalus) sp. Cossmann 1888 snail
Calliomphalus (Calliomphalus) sp.
 Fissurelloidea - Fissurellidae
Emarginula sp. n. sp. Lamarck 1801 snail
Emarginula n. sp. (Owens et al)
 Dentaliida - Dentaliidae
Dentalium intercalatum tusk shell
Dentalium intercalatum Wade
 Belemnitida - Belemnitellidae
Belemnitella americana belemnite
Belemnitella americana (Morton)
 Ammonitida - Scaphitidae
Hoploscaphites sp. Nowak 1911 ammonite
Hoploscaphites sp.
 Ammonitida - Baculitidae
Baculites sp. Lamarck 1799 ammonite
Baculites sp.
 Ammonitida - Nostoceratidae
? Didymoceras sp. Hyatt 1900 ammonite
Didymoceras? sp.
Anaklinoceras sp. Stephenson 1941 ammonite
Anaklinoceras sp.
Bryozoa indet. Ehrenberg 1831
 Scleractinia - Micrabaciidae
"Micrabacia hilgardi" = Micrabacia marylandica
"Micrabacia hilgardi" = Micrabacia marylandica Stephenson 1916 stony coral
Micrabacia hilgardi Stephenson