Inversand Company marl pit, Sewell (Navesink) (Cretaceous of the United States)

Also known as KT loc. 428

Where: Gloucester County, New Jersey (39.8° N, 75.2° W: paleocoordinates 40.2° N, 50.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Navesink Formation (Monmouth Group), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Based on Sr-isotopes (radiometric ages not conclusive)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; poorly lithified, glauconitic marl

Size classes: macrofossils, mesofossils

Collected by C. Hungerford Jr.

Collection methods: mechanical,

• Numerous collectors

Primary reference: R. G. Chaffee. 1939. A New Jersey mosasaur of the subfamily Platecarpinae. The Academy of Natural Sciences of Philadelphia (37)1-5 [M. Carrano/H. Street]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26818: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 05.11.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Terebrataliidae
Bivalvia
 Arcida - Glycymerididae
 Arcida - Cucullaeidae
 Pectinida - Pectinoidae
 Ostreida - Gryphaeidae
"Exogyra costata" = Exogyra (Exogyra) costata1 Say 1971 oyster
Gryphaeostrea vomer1 Morton 1828 oyster
 Ostreida - Flemingostreidae
 Mytilida - Mytilidae
Botula ripleyana1 mussel
Assigned to Lithophaga
 Carditida - Crassatellidae
"Crassatellites vadosus" = Crassatella vadosa1
"Crassatellites vadosus" = Crassatella vadosa1 Morton 1834 clam
 Cardiida - Tellinidae
 Cardiida - Cardiidae
"Pachycardium spillmani" = Protocardia (Pachycardium)1
"Pachycardium spillmani" = Protocardia (Pachycardium)1 cockle
 Poromyida - Poromyidae
Liopistha protexta1 Conrad 1853 clam
 Trigoniida - Trigoniidae
Gastropoda
 Neogastropoda - Melongenidae
 Neogastropoda - Volutidae
 Stromboidea - Aporrhaidae
 Naticoidea - Naticidae
"Lunatia halli" = Euspira halli1, Gyrodes petrosus1
"Lunatia halli" = Euspira halli1 Gabb 1860 moon snail
Gyrodes petrosus1 moon snail
 Calyptraeoidea - Trichotropidae
 Sorbeoconcha - Turritellidae
Turritella cf. vertebroides1 Morton 1834 turret shell
Cephalopoda
 Ammonitida - Scaphitidae
Discoscaphites conradi1 Morton 1834 ammonite
 Ammonitida - Baculitidae
Baculites ovatus1 Say 1820 ammonite
 Nautilida - Nautilidae
Eutrephoceras dekayi1 Morton 1834 nautiloid
Bryozoa
  -
Bryozoa indet.1 Ehrenberg 1831
encrusting
Chondrichthyes
 Lamniformes - Anacoracidae
Squalicorax pristodontus1 Agassiz 1843 crow shark
 Lamniformes - Odontaspididae
Odontaspis sp.1 Agassiz 1843 sand tiger shark
Actinopteri
 Salmoniformes - Enchodontidae
Enchodus ferox1 Leidy 1855
 Ichthyodectiformes - Ichthyodectidae
? Xiphactinus sp.1 Leidy 1870
 Pycnodontiformes - Pycnodontidae
Anomoeodus phaseolus1 Hay 1899
originally entered as "Anomaeodus phaseolus"
Reptilia
 Testudines - Cheloniidae
Cheloniidae indet.1 Bonaparte 1832 sea turtle
 Testudines - Pancheloniidae
Peritresius ornatus3 Leidy 1856 turtle
NJSM 11051
 Neornithischia - Hadrosauridae
Lambeosaurinae indet.1, "Edmontosaurus minor" = Hadrosaurus minor2
Lambeosaurinae indet.1 Parks 1923 lambeosaurine
NJSM 11961 (radius and ulna)
"Edmontosaurus minor" = Hadrosaurus minor2 Cope 1869 hadrosaurid
NJSM 15136 (vertebral centrum), 11880 (L tibia); ANSP 15202
 Squamata - Mosasauridae
Mosasaurus sp.1, "Mosasaurus maximus" = Mosasaurus hoffmanni1, "Ancylocentrum hungerfordi n. sp." = Prognathodon rapax, Halisaurus platyspondylus1
Mosasaurus sp.1 Parkinson 1822 mosasaur
"Mosasaurus maximus" = Mosasaurus hoffmanni1 Mantell 1829 mosasaur
NJSM 11052, 11053 (skulls)
"Ancylocentrum hungerfordi n. sp." = Prognathodon rapax Hay 1902 mosasaur
NJSM 9827
Halisaurus platyspondylus1 Marsh 1869 mosasaur
NJSM 12259
Echinoidea
 Spatangoida - Hemiasteridae
Hemiaster sp.1 Agassiz and Desor 1847 heart urchin
Demospongea
 Clavulina - Clionaidae
Cliona cretacea1 demosponge