USGS 29507, Biggs lower (Cretaceous of the United States)

Also known as Biggs farm locality on the 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 Buddenhagen, Kauffman, and Sohl 1966

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 6172: authorized by Matt Kosnik, entered by Matt Kosnik on 01.02.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Cheilostomata
Rhynchonellata
 Terebratulida - Cancellothyrididae
Terebratulina cooperi
Terebratulina cooperi Richards and Shapiro
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Bivalvia
 Nuculanida - Malletiidae
Malletia stephensoni clam
Perissonata stephensoni (Richards)
Malletia longifrons clam
Nuculana longifrons (Conrad)
 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)
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Caesticorbula crassiplica (Gabb)
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi Morton
 Cardiida - Mactridae
Cymbophora sp. Gabb 1869 clam
Cymbophora spp.
 Cardiida - Tellinidae
cf. Sourimis georgiana Gabb 1876 tellin clam
Tellina cf. T. georgiana Gabb
 Cardiida - Cardiidae
Granocardium (Granocardium) dumosum Conrad 1870 cockle
Cardium (Granocardium) dumosum Conrad
 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 - Gryphaeidae
Gryphaeostrea vomer Morton 1828 oyster
Gryphaeostrea vomer Morton
Pycnodonte mutabilis oyster
Pyncnodonte mutabilis Morton
Exogyra cancellata oyster
Exogyra cancellata Stephenson
 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
 Pectinida - Neitheoidae
Neithea quinquecostata Sowerby 1814 scallop
Neithea quinquecostata Sowerby
 Pectinida - Pectinoidae
"? Microchlamys (Pecten) venustus" = Dhondtichlamys
"? Microchlamys (Pecten) venustus" = Dhondtichlamys scallop
Pecten (Pecten?) venustus Morton
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam
Inoceramus sp.
 Arcida - Glycymerididae
Postligata wordeni clam
Postiligata wordeni Gardner
Postligata crenata clam
Postiligata crenata Wade
 Arcida - Arcidae
Arca sp. n. sp. Linnaeus 1758 ark
Arca n. sp. (Owens et al)
cf. Arca macnairyensis ark
Arca cf. A. macnairyensis Gabb
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium intercalatum tusk shell
Dentalium intercalatum Wade
Gastropoda
 Sorbeoconcha - Acteoninidae
Eoacteon percultus Sohl 1964 snail
Eoacteon percultus Sohl
 Sorbeoconcha - Procerithiidae
Nudivagus sp. snail
Nudivagus sp.
 Sorbeoconcha - Naticidae
Amaurellina stephensoni moon snail
Amaurellina stephensoni (Wade)
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum Conrad
 Sorbeoconcha - Xenophoridae
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa
"cf. Xenophora leprosa" = Xenophora (Endoptygma) leprosa Morton 1834 carrier shell
Xenophora cf. X. leprosa Morton
 Sorbeoconcha -
? Tintorium sp. Sohl 1960 snail
Tintorium? sp.
 Neogastropoda - Paladmetidae
Paladmete gardnerae Wade snail
Paladmete gardnerae Wade
 Neogastropoda - Fasciolariidae
Hercorhyncus sp. Conrad 1868 snail
Hercorhynchus sp.
 Cerithioidea - Turritellidae
Laxispira monilifera Sohl 1964 turret shell
Laxispira monilifera Sohl
Turritella sp. Lamarck 1799 turret shell
Turritella sp.
"Haustator trilira" = Turritella trilira Conrad 1860 turret shell
Haustator trilira Conrad
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
Cerithium sp.
 Heterostropha - Acteonidae
Acteon sp. Montfort 1810 snail
Acteon sp.
 Heterostropha - Ringiculidae
Avellana bullata snail
Avellana bullata (Morton)
 Seguenzioidea - Eucyclidae
Calliomphalus (Calliomphalus) sp. Cossmann 1888 snail
Calliomphalus (Calliomphalus) sp.
cf. Calliomphalus (Calliomphalus) nudus snail
Calliomphalus (Calliomphalus) cf. C. (C.) nudus Sohl
Calliomphalus (Calliomphalus) ? americanus snail
Calliomphalus (Calliomphalus) americanus Wade?
Cephalopoda
 Belemnitida - Belemnitellidae
Belemnitella americana belemnite
Belemnitella americana (Morton)
Demospongiae
 Clavulina - Clionaidae
Cliona sp. demosponge
Clione sp.
Anthozoa
 Scleractinia - Micrabaciidae
"Micrabacia hilgardi" = Micrabacia marylandica
"Micrabacia hilgardi" = Micrabacia marylandica Stephenson 1916 stony coral
Micrabacia hilgardi Stephenson