Inversand Company marl pit, Sewell (MFL) (Cretaceous to 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, 51.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hornerstown Formation (Rancocas Group), Late/Upper Maastrichtian to Late/Upper Maastrichtian (70.6 - 61.7 Ma)

• Mixed Maastrichtian-Danian assemblage from the main fossiliferous layer (most likely a Maastrichtian lag deposit)

•"articulated skeletons and other unworn material, including most of the birds, are more probably not reworked but part of a new phase of deposition in the earliest Paleocene (D. Parris, pers. comm.)" (Hope 2002).

•Described as the "main fossiliferous layer"

• bed-level stratigraphic resolution

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

Size classes: macrofossils, mesofossils

Collection methods: salvage, quarrying,

Primary reference: J. Leidy. 1856. Notices of remains of extinct vertebrated animals of New Jersey, collected by Prof. Cook of the State Geological Survey under the direction of Dr. W. Kitchell. Proceedings of the Academy of Natural Sciences of Philadelphia 8:220-221 [M. Uhen/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26819: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 05.11.2002, edited by Matthew Carrano, Jonathan Tennant, Patricia Holroyd, John Alroy and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Nephropidae
? Hoploparia sp.6 McCoy 1849 clawed lobster
Rhynchonellata
 Terebratulida - Cancellothyrididae
Bivalvia
 Arcida - Glycymerididae
 Arcida - Cucullaeidae
 Ostreida - Gryphaeidae
Gryphaeostrea vomer4 Morton 1828 oyster
 Ostreida - Bakevelliidae
Gervilliopsis ensiformis4 Conrad 1858 oyster
 Mytilida - Mytilidae
Lithophaga ripleyana4 mussel
also Botula
 Carditida - Crassatellidae
Crassatella vadosa4 Morton 1834 clam
 Pholadida - Pholadidae
 Cardiida - Arcticidae
Veniella conradi4 Morton 1833 clam
 Cardiida - Cardiidae
"Cardium tenuistriatum" = Granocardium tenuistriatum4
"Cardium tenuistriatum" = Granocardium tenuistriatum4 Whitfield 1885 cockle
 Hiatellida - Hiatellidae
 Protobranchia - Nuculanidae
Nuculana stephensoni4 pointed nut clam
Gastropoda
 Neogastropoda - Volutidae
 Neogastropoda - Tudiclidae
 Neogastropoda - Turbinellidae
 Stromboidea - Aporrhaidae
 Naticoidea - Naticidae
"Lunatia halli" = Euspira halli4, Gyrodes abyssinus4
"Lunatia halli" = Euspira halli4 Gabb 1860 moon snail
Gyrodes abyssinus4 moon snail
 Sorbeoconcha - Turritellidae
Turritella vertebroides4 Morton 1834 turret shell
 Heterostropha - Acteonidae
Cephalopoda
 Ammonitida - Pachydiscidae
Pachydiscus (Neodesmoceras) sp.4 Matsumoto 1947 ammonite
 Ammonitida - Sphenodiscidae
Sphenodiscus lobatus4 Tuomey 1856 ammonite
 Ammonitida - Baculitidae
Baculites sp.6 Lamarck 1799 ammonite
 Nautilida - Nautilidae
Eutrephoceras dekayi4 Morton 1834 nautiloid
Chondrichthyes
 Elasmobranchii -
Elasmobranchii indet.6 Bonaparte 1838 elasmobranch
"Elasmobranchia indet."
 Squatiniformes - Squatinidae
Squatina sp.4 Dumeril 1806 angel shark
 Euselachii -
Batomorphii indet.6 Capetta 1980 elasmobranch
originally entered as "Batomorpha indet."
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza mira4 Leidy 1856 elasmobranch
 Myliobatiformes - Myliobatidae
"Myliobatis cf. leidyi" = Myliobatis striatus4, Rhinoptera sp.4
"Myliobatis cf. leidyi" = Myliobatis striatus4 Agassiz 1843 eagle ray
Rhinoptera sp.4 Cuvier 1829 cownose ray
 Myliobatiformes - Rhombodontidae
"Rhombodus levis" = Rhombodus laevis6
"Rhombodus levis" = Rhombodus laevis6 Cappetta and Case 1975 stingray
 Lamniformes - Anacoracidae
Squalicorax pristodontus4 Agassiz 1843 crow shark
 Lamniformes - Lamnidae
"Odontaspis cuspidata" = Lamna cuspidata4
"Odontaspis cuspidata" = Lamna cuspidata4 Agassiz 1843 mackerel shark
 Lamniformes - Cretoxyrhinidae
"Lamna appendiculata" = Cretolamna appendiculata4
"Lamna appendiculata" = Cretolamna appendiculata4 Agassiz 1843 mackerel shark
 Hexanchiformes - Hexanchidae
Hexanchus sp.4 Rafinesque 1810 sixgill shark
 Chimaeriformes - Callorhinchidae
Edaphodon stenobyrus4 plownose chimaera
Edaphodon mirificus n. gen. n. sp. Leidy 1856 plownose chimaera
 Chimaeriformes - Callorhynchidae
Ischyodus dolloi2 plownose chimaera
Ischyodus thurmanni6 Pictet and Campiche 1878 plownose chimaera
Actinopteri
 Acipenseriformes - Acipenseridae
Acipenser cf. albertensis6 Lambe 1902 sturgeon
 Teleostei -
Teleostei indet.6
originally entered as "Teleost indet."
 Elopiformes - Phyllodontidae
Paralbula casei4 Estes 1969
 Tselfatiiformes - Plethodidae
cf. Bananogmius sp.6 Whitley 1940
 Salmoniformes - Enchodontidae
Reptilia
 Testudines -
"Toxochelys atlantica" = Catapleura repanda9
"Toxochelys atlantica" = Catapleura repanda9 Cope 1868 sea turtle
ANSP 18709; NJSM 12295, 12321, 12374
 Testudines - Adocidae
Adocus beatus4 Leidy 1865 turtle
ANSP 15356, a shell
 Testudines - Kinosternoidea
"Agomphus turgidus" = Agomphus pectoralis6
"Agomphus turgidus" = Agomphus pectoralis6 Cope 1870 mud turtle
ANSP 15359
 Testudines - Pancheloniidae
Peritresius cf. ornatus5 Leidy 1856 turtle
NJSM 13735
Euclastes weilandi8 turtle
ANSP 15335; NJSM 11872
 Testudines - Bothremydidae
cf. Bothremys sp.6, "Taphrosphys sulcatus" = Taphrosphys sulcatus4, "Taphrosphys molops" = Taphrosphys sulcatus4
cf. Bothremys sp.6 Leidy 1865 sideneck turtle
"Taphrosphys sulcatus" = Taphrosphys sulcatus4 Leidy 1856 sideneck turtle
ANSP 15358, 15544; NJSM 10410, PU 18706-18708, ANSP 15544
"Taphrosphys molops" = Taphrosphys sulcatus4 Leidy 1856 sideneck turtle
NJSM 11340 skull fragments
Aves
  -
Aves indet.4 Linnaeus 1758 bird
NJSM 12119, 12248; ANSP 15713
 Charadriiformes -
"Telmatornis priscus" = Telmatornis priscus7, "Palaeotringa vetus" = Telmatornis priscus5
"Telmatornis priscus" = Telmatornis priscus7 Marsh 1870 shorebird
ANSP 15541; NJSM 11853
"Palaeotringa vetus" = Telmatornis priscus5 Marsh 1870 shorebird
ANSP 15360
 Charadriiformes - Graculavidae
Graculavidae indet.7 F├╝rbringer 1888 shorebird
NJSM 11302
Palaeotringa ? littoralis7 Marsh 1870 shorebird
NJSM 11303
 Charadriiformes -
Graculavus ? velox7 Marsh 1872 shorebird
NJSM 11854
 Natatores -
? Procellariiformes indet.7 F├╝rbringer 1888 bird
ANSP 15713
 Procellariiformes - Tytthostonychidae
Tytthostonyx glauconiticus n. gen. n. sp.7 Olson and Parris 1987 bird
NJSM 11341
Reptilia
 Crocodylia -
Bottosaurus tuberculatus n. sp.3 Cope 1870 crocodilian
Small individual, 27 vertebrae, 50 scutes, appendicular elements
Borealosuchus threeensis n. sp.1 Brochu et al. 2012 crocodilian
 Crocodylia - Alligatoridae
cf. Procaimanoidea sp.4 Gilmore 1946 crocodilian
NJSM 11305, 11885
Bottosaurus harlani4 Meyer 1832 crocodilian
NJSM 11265
 Crocodylia -
Thoracosaurus neocesariensis5 De Kay 1842 crocodilian
Thoracosaurus neocesariensis in ref 7438
 Loricata - Dyrosauridae
Hyposaurus sp.7 Owen 1849 crocodilian
 Squamata - Mosasauridae
Mosasauridae indet.6 Gervais 1852 mosasaur
Mosasaurus sp.4 Parkinson 1822 mosasaur
"Mosasaurus maximus" = Mosasaurus hoffmanni5 Mantell 1829 mosasaur
NJSM 11332, teeth
Halisaurus platyspondylus5 Marsh 1869 mosasaur
NJSM 12146
Plioplatecarpus sp.7 Dollo 1882 mosasaur