USGS 29509, 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 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)

• Collection from spoil pile along road.

Environment/lithology: marine

Reposited in the USGS

• Collected by Buddenhagen, Kauffman, and Sohl 1966, Collection from spoil pile along road.

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 6176: authorized by Matt Kosnik, entered by Matt Kosnik on 01.02.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Crab indet.
Crab claw
Anthozoa
 Scleractinia - Micrabaciidae
"Micrabacia hilgardi" = Micrabacia marylandica
"Micrabacia hilgardi" = Micrabacia marylandica Stephenson 1916 stony coral
Micrabacia hilgardi Stephenson
Demospongiae
 Clavulina - Clionaidae
Cliona sp. demosponge
Clione sp.
Gastropoda
 Seguenzioidea - Eucyclidae
Calliomphalus (Calliomphalus) ? americanus snail
Calliomphalus (Calliomphalus) americanus Wade?
Calliomphalus (Calliomphalus) sp. Cossmann 1888 snail
Calliomphalus (Calliomphalus) sp.
 Architaenioglossa - Ampullinidae
"Pseudamaura lirata" = Ampullina (Pseudamaura)
"Pseudamaura lirata" = Ampullina (Pseudamaura) snail
Pseudomaura lirata (Wade)
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
Cerithium sp.
 Neogastropoda - Paladmetidae
Paladmete gardnerae Wade snail
Paladmete gardnerae Wade
 Sorbeoconcha - Aporrhaidae
cf. Pterocerella poinsettiformis Stephenson 1941 snail
Pterocerella cf. P. poinsettiformis Stephenson
 Sorbeoconcha - Naticidae
Amaurellina stephensoni moon snail
Amaurellina stephensoni (Wade)
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum Conrad
 Opisthobranchia - Cylichnidae
Cylichna sp. Lovén 1846 snail
Cylichna sp.
 Heterostropha - Architectonicidae
Margaritella sp. Meek and Hayden 1860 snail
Margaritella sp.
cf. Architectonica voragiformis sundial
Architectonica cf. A. voragiformis Stephenson
 Heterostropha - Mathildidae
Gegania bella snail
Tuba bella Conrad
Gegania sp. Jeffreys 1884 snail
Tuba sp.
Mathilda sp. n. sp. Semper 1865 snail
Mathilda n. sp. (Owens et al)
 Basommatophora - Siphonariidae
? Anisomyon jessupi pulmonate
Anisomyon? jessupi Richards and Shapiro
Bivalvia
 Nuculanida - Malletiidae
cf. Malletia ? protexta clam
Perissonata cf. P. protexta Gabb?
Malletia longifrons clam
Nuculana longifrons (Conrad)
Malletia stephensoni clam
Perissonata stephensoni (Richards)
 Trigoniida - Megatrigonioidae
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia)
"Scabrotrigonia eufaulensis" = Pterotrigonia (Scabrotrigonia) clam
Trigonia eufaulensis Gabb
 Carditida - Carditidae
aff. Vetericardiella subcircula clam
Vetericardia aff. V. subcircula Wade
 Lucinida - Lucinidae
Nymphalucina parva clam
Lucina parva Stephenson
 Poromyida - Poromyidae
Liopistha protexta Conrad 1853 clam
Liopistha protexia (Conrad)
 Poromyida - Cuspidariidae
Cuspidaria sp. Dall 1886 clam
Cuspidaria sp.
 Pandorida - Clavagellidae
Clavagella armata Morton 1833 clam
Clavagella armata Morton
 Pholadida - Corbulidae
Caestocorbula crassiplica Gabb 1860 clam
Caesticorbula crassiplica (Gabb)
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi Morton
 Cardiida - Veneridae
? Aphrodina eufaulensis venus clam
Aphrodina? eufaulensis (Conrad) of Wade
 Cardiida - Cardiidae
"Brevicardium parahillanum" = Nemocardium (Brevicardium), Cardium sp.
"Brevicardium parahillanum" = Nemocardium (Brevicardium) cockle
Brevicardium parahillanum (Wade)
Cardium sp. Linnaeus 1758 cockle
Cardium spp.
 Cardiida - Tellinidae
"Linearia metastriata" = Linearis
"Linearia metastriata" = Linearis tellin clam
Linearia metastriata Conrad
 Cardiida - Gastrochaenidae
Eufistulana sp. Eames 1951 clam
Kummelia sp. - owens
 Arcida - Glycymerididae
Postligata crenata clam
Postiligata crenata Wade
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
Cucullaea sp.
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam
Inoceramus sp.
 Ostreida - Bakevelliidae
Gervilliopsis sp. Whitfield 1885 oyster
Gervilliopsis sp.
 Ostreida - Gryphaeidae
Gryphaeostrea vomer Morton 1828 oyster
Gryphaeostrea vomer Morton
Pycnodonte mutabilis oyster
Pyncnodonte mutabilis Morton
Exogyra cancellata oyster
Exogyra cancellata Stephenson
 Ostreida - Ostreidae
Acutostrea plumosa oyster
Ostrea plumosa Morton
 Ostreida - Flemingostreidae
Agerostrea falcata Morton 1827 oyster
Lopha falcata Morton
Agerostrea mesenterica Morton 1834 oyster
Lopha mesenterica Morton
 Pectinida - Anomiidae
Anomia tellinoides jingle
Anomia tellinoides Morton
Anomia argentaria Morton 1833 jingle
Anomia argentaria Morton
 Pectinida - Neitheoidae
Neithea quinquecostata Sowerby 1814 scallop
Neithea quinquecostata Sowerby
Cephalopoda
 Nautilida - Nautilidae
Eutrephoceras dekayi Morton 1834 nautiloid
Eutrephoceras dekayi (Morton)
 Belemnitida - Belemnitellidae
Belemnitella americana belemnite
Belemnitella americana (Morton)
 Ammonitida - Baculitidae
Baculites sp. Lamarck 1799 ammonite
Baculites sp.
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Cheilostomata
Polychaeta
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.