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: 40.3° N, 36.4° W (Wright 2013)

• 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

unclassified
  -
Cidaroidae indet.
Cidaroidea
Crinoidae indet.
Comatulid crinoid
Crab indet.
Crab claw
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Cheilostomata
Lingulata
 Lingulida - Lingulidae
? Lingula sp. Bruguiére 1797
Lingula? sp.
Rhynchonellata
 Terebratulida - Cancellothyrididae
Terebratulina cooperi
Terebratulina cooperi Richards and Shapiro
Polychaeta
 Serpulimorpha -
Hamulus onyx Morton 1834
Hamulus onyx Morton
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Bivalvia
 Nuculanida - Malletiidae
Malletia longifrons clam
Nuculana longifrons (Conrad)
Malletia stephensoni clam
Perissonata stephensoni (Richards)
cf. Malletia ? protexta clam
Perissonata cf. P. protexta Gabb?
 Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789 clam
Trigonia sp.
 Trigoniida - Megatrigonioidae
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia)
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia) clam
Trigonia eufaulensis Gabb
 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
 Pandorida - Clavagellidae
Clavagella armata Morton 1833 clam
Clavagella armata Morton
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Caesticorbula crassiplica (Gabb)
 Cardiida - Gastrochaenidae
Eufistulana sp. Eames 1951 clam
Kummelia sp. - owens
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi Morton
Etea sp. Conrad 1873 clam
Etea sp.
 Cardiida - Veneridae
? Aphrodina eufaulensis venus clam
Aphrodina? eufaulensis (Conrad) of Wade
Legumen sp. Conrad 1858 venus clam
Legumen sp.
 Cardiida - Mactridae
Cymbophora subtilis clam
Cymbophora subtilis Stephenson
Cymbophora sp. Gabb 1869 clam
Cymbophora spp.
 Cardiida - Tellinidae
cf. Sourimis georgiana, "Linearia metastriata" = Linearis, "Linearia sp. n. sp." = Linearis
cf. Sourimis georgiana Gabb 1876 tellin clam
Tellina cf. T. georgiana Gabb
"Linearia metastriata" = Linearis tellin clam
Linearia metastriata Conrad
"Linearia sp. n. sp." = Linearis Conrad 1860 tellin clam
Linearia n. sp. (large) (Owens et al)
 Cardiida - Cardiidae
"Pleuriocardia (Trachycardium) eufaulensis" = Trachycardium eufaulensis, Granocardium (Granocardium) dumosum, Cardium sp., "Brevicardium parahillanum" = Nemocardium (Brevicardium)
"Pleuriocardia (Trachycardium) eufaulensis" = Trachycardium eufaulensis Conrad 1860 cockle
Cardium (Trachycardium) eufaulensis Conrad
Granocardium (Granocardium) dumosum Conrad 1870 cockle
Cardium (Granocardium) dumosum Conrad
Cardium sp. Linnaeus 1758 cockle
Cardium spp.
"Brevicardium parahillanum" = Nemocardium (Brevicardium) cockle
Brevicardium parahillanum (Wade)
 Lucinida - Mactromyidae
Clisocolus sp. Gabb 1869 clam
Unicardium sp.
 Lucinida - Lucinidae
Nymphalucina parva clam
Lucina parva Stephenson
 Carditida - Carditidae
aff. Vetericardiella subcircula clam
Vetericardia aff. V. subcircula Wade
 Ostreida - Flemingostreidae
Agerostrea mesenterica Morton 1834 oyster
Lopha mesenterica Morton
Agerostrea falcata Morton 1827 oyster
Lopha falcata Morton
 Ostreida - Ostreidae
Acutostrea plumosa oyster
Ostrea plumosa Morton
Ostrea sp. Linnaeus 1758 oyster
Ostrea sp.
 Ostreida - Gryphaeidae
Gryphaeostrea vomer Morton 1828 oyster
Gryphaeostrea vomer Morton
Pycnodonte mutabilis oyster
Pyncnodonte mutabilis Morton
Exogyra cancellata oyster
Exogyra cancellata Stephenson
 Ostreida - Bakevelliidae
Gervilliopsis sp. Whitfield 1885 oyster
Gervilliopsis sp.
 Pectinida - Plicatulidae
Plicatula mullicaensis scallop
Plicatula mullicanensis Weller
 Pectinida - Anomiidae
Paranomia scabra scallop
Paranomia scabra Morton
Anomia tellinoides jingle
Anomia tellinoides Morton
Anomia argentaria Morton 1833 jingle
Anomia argentaria Morton
 Pectinida - Limidae
Pseudolimea reticulata Forbes 1845 file clam
Lima reticulata Lyell and Forbes
Lima sp. Bruguière 1797 file clam
Lima sp.
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncyclonema simplicius Conrad
 Pectinida - Neitheoidae
Neithea quinquecostata Sowerby 1814 scallop
Neithea quinquecostata Sowerby
 Pectinida - Pectinoidae
"? Microchlamys (Pecten) venustus" = Dhondtichlamys, Radiopecten mississippiensis
"? Microchlamys (Pecten) venustus" = Dhondtichlamys scallop
Pecten (Pecten?) venustus Morton
Radiopecten mississippiensis scallop
Radiopecten mississippiensis (Conrad)
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam
Inoceramus sp.
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
Glycymeris sp.
Postligata crenata clam
Postiligata crenata Wade
Postligata wordeni clam
Postiligata wordeni Gardner
 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 - 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.
 Mytilida - Mytilidae
Lithophaga sp. Röding 1798 mussel
Lithophaga sp.
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium intercalatum tusk shell
Dentalium intercalatum Wade
Gastropoda
 Opisthobranchiata - 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)
 Sorbeoconcha - Acteoninidae
cf. Parietiplicatum conicum Wade 1926 snail
Parietiplicatum cf. P. conicum (Wade)
Eoacteon percultus Sohl 1964 snail
Eoacteon percultus Sohl
 Sorbeoconcha - Naticidae
Amaurellina stephensoni moon snail
Amaurellina stephensoni (Wade)
Gyrodes abyssinus moon snail
Gyrodes abyssinus (Morton)
Gyrodes sp. Conrad 1860 moon snail
Gyrodes sp.
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum Conrad
 Sorbeoconcha - Aporrhaidae
cf. Pterocerella poinsettiformis Stephenson 1941 snail
Pterocerella cf. P. poinsettiformis Stephenson
Drepanochilus sp. Meek 1864 snail
Drepanochilus sp.
 Sorbeoconcha - Xenophoridae
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa Morton 1834 carrier shell
Xenophora cf. X. leprosa Morton
 Neogastropoda - Pyropsidae
cf. Pyropsis perlata Conrad 1860 snail
Pyropsis cf. P. perlata Conrad
 Neogastropoda - Turridae
Beretra sp. Stephenson 1941 turrid
Beretra sp.
 Neogastropoda - Volutidae
Volutomorpha sp. Gabb 1877 volute
Volutomorpha sp.
Longoconcha sp. Stephenson 1941 volute
Longoconcha sp.
 Neogastropoda - Muricidae
Sargana sp. Stephenson 1923 murex snail
Sargana sp.
 Neogastropoda - Cancellariidae
Caveola sp. Stephenson 1941 snail
Caveola sp.
 Neogastropoda - Paladmetidae
Paladmete gardnerae Wade snail
Paladmete gardnerae Wade
 Neogastropoda - Turbinellidae
Napulus reesidei Sohl 1964 snail
Napulus reesidei Sohl
 Neogastropoda - Fasciolariidae
? Remera sp. Stephenson 1941 snail
Remera? sp.
Anomalofusus ? substriatus Wade 1916 snail
Anomalofusus substriatus Wade?
Bellifusus curvicostatus Wade 1926 snail
Bellifusus curvicostatus (Wade)
Woodsella typica Wade 1926 snail
Woodsella typica Wade
 Epitonioidea - Epitoniidae
cf. Belliscala creideri wentletrap
Belliscala cf. B. creideri Stephenson
 Cerithioidea - 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
 Cerithioidea - Cerithiidae
Cerithium weeksi Wade 1926 cerith snail
Cerithium weeksi Wade
 Heterostropha - Mathildidae
Gegania sp. Jeffreys 1884 snail
Tuba sp.
 Heterostropha - Acteonidae
Acteon sp. Montfort 1810 snail
Acteon sp.
 Heterostropha - 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.
 Basommatophora - Siphonariidae
? Anisomyon jessupi pulmonate
Anisomyon? jessupi Richards and Shapiro
 Lepetellida - Fissurellidae
Emarginula sp. n. sp. Lamarck 1801 snail
Emarginula n. sp. (Owens et al)
 Seguenzioidea - Eucyclidae
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.
 Euomphalina - Euomphalidae
Weeksia sp. Stephenson 1941 snail
Weeksia sp.
Cephalopoda
 Ammonitida - Scaphitidae
Hoploscaphites sp. Nowak 1911 ammonite
Hoploscaphites sp.
 Ammonitida - Baculitidae
Baculites sp. Lamarck 1799 ammonite
Baculites sp.
 Ammonitida - Nostoceratidae
Anaklinoceras sp. Stephenson 1941 ammonite
Anaklinoceras sp.
? Didymoceras sp. Hyatt 1900 ammonite
Didymoceras? sp.
 Belemnitida - Belemnitellidae
Belemnitella americana belemnite
Belemnitella americana (Morton)
Anthozoa
 Scleractinia - Micrabaciidae
"Micrabacia hilgardi" = Micrabacia marylandica
"Micrabacia hilgardi" = Micrabacia marylandica Stephenson 1916 stony coral
Micrabacia hilgardi Stephenson