Inversand Company marl pit, Sewell (MFL): Late/Upper Maastrichtian - Early/Lower Paleocene, New Jersey
collected by Regensburg and Dilkes 1957; 1960

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Nautilida - Nautilidae
Eutrephoceras dekayi (Morton 1834)
Gallagher 1984
Cephalopoda - Ammonitida - Pachydiscidae
Pachydiscus (Neodesmoceras) sp. Matsumoto 1947
Gallagher 1984
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus lobatus (Tuomey 1856)
Gallagher 1984
Cephalopoda - Ammonitida - Baculitidae
Baculites ovatus (Say 1820)
Gallagher 1984
    = Baculites sp. Lamarck 1799
Gallagher 2002
Gastropoda - Turritellidae
Turritella vertebroides Morton 1834
Gallagher 1984
Gastropoda - Aporrhaidae
Anchura abrupta
Gallagher 1984
Gastropoda - Neogastropoda - Pyropsidae
Pyropsis trochiformis
Gallagher 1984
Gastropoda - Neogastropoda - Turbinellidae
Turbinella subconica
Gallagher 1984
Turbinella parva
Gallagher 1984
Gastropoda - Neogastropoda - Volutidae
Volutoderma ovata
Gallagher 1984
Gastropoda - Naticidae
Lunatia halli Gabb 1860
Gallagher 1984
recombined as Euspira halli
Gyrodes abyssinus
Gallagher 1984
Gastropoda - Heterostropha - Acteonidae
Acteon cretacea
Gallagher 1984
Bivalvia - Arcida - Cucullaeidae
Cucullaea vulgaris
Gallagher 1984
Bivalvia - Arcida - Glycymerididae
Glycymeris mortoni
Gallagher 1984
Bivalvia - Ostreida - Bakevelliidae
Gervilliopsis ensiformis (Conrad 1858)
Gallagher 1984
Bivalvia - Ostreida - Gryphaeidae
Pycnodonte dissimilaris
Gallagher 2002 78 %-volume
Gryphaeostrea vomer (Morton 1828)
Gallagher 1984
Gryphaea convexa
Olson and Parris 1987
Bivalvia - Mytilida - Mytilidae
Lithophaga ripleyana
Gallagher 1984
also Botula
Bivalvia - Pholadida - Pholadidae
Xylophagella irregularis
Gallagher 1984
Bivalvia - Cardiida - Arcticidae
Etea delawarensis
Gallagher 1984
Veniella conradi Morton 1833
Gallagher 1984
Bivalvia - Cardiida - Cardiidae
Cardium tenuistriatum (Whitfield 1885)
Gallagher 1984
recombined as Granocardium tenuistriatum
Bivalvia - Hiatellida - Hiatellidae
Panopea decisa
Gallagher 1984
Bivalvia - Carditida - Crassatellidae
Crassatella vadosa Morton 1834
Gallagher 1984
Bivalvia - Nuculanida - Nuculanidae
Nuculana stephensoni
Gallagher 1984
Rhynchonellata - Terebratulida - Cancellothyrididae
Terebratulina atlantica
Gallagher 1984
Malacostraca - Decapoda - Nephropidae
cf. Hoploparia sp. M'Coy 1849
Gallagher 1984
    = ? Hoploparia sp. M'Coy 1849
Gallagher 2002
Chondrichthyes
Elasmobranchii indet. Bonaparte 1838
Gallagher 2002
"Elasmobranchia indet."
Chondrichthyes - Myliobatiformes - Myliobatidae
Myliobatis cf. leidyi Hay 1899
Gallagher 1984
synonym of Aetomylaeus striatus
Rhinoptera sp. Cuvier 1829
Gallagher 1984
Chondrichthyes - Myliobatiformes - Rhombodontidae
cf. Rhombodus levis (Cappetta and Case 1975)
Gallagher 1984
    = Rhombodus levis Cappetta and Case 1975
Gallagher 2002
Chondrichthyes - Squatinidae
Squatina sp. Dumeril 1806
Gallagher 1984
Chondrichthyes - Squalomorphii - Hexanchidae
Hexanchus sp. Rafinesque 1810
Gallagher 1984
Chondrichthyes
Batomorphii indet. Cappetta 1980
Gallagher 2002
originally entered as "Batomorpha indet."
Chondrichthyes - Rajiformes - Sclerorhynchidae
Ischyrhiza mira Leidy 1856
Gallagher 1984
Chondrichthyes - Lamniformes - Odontaspididae
Odontaspis cuspidata (Agassiz 1843)
Gallagher 1984
recombined as Araloselachus cuspidatus
Chondrichthyes - Lamniformes - Anacoracidae
Squalicorax pristodontus (Agassiz 1835)
Gallagher 1984
Chondrichthyes - Lamniformes - Otodontidae
Lamna appendiculata Agassiz 1835
Gallagher 1984
recombined as Cretalamna appendiculata
Chondrichthyes - Chimaeriformes - Edaphodontidae
Edaphodon stenobyrus
Gallagher 1984
Edaphodon mirificus n. gen., n. sp. Leidy 1856
Chondrichthyes - Chimaeriformes - Callorhynchidae
Ischyodus dolloi
Cicimurri and Ebersole 2015
Ischyodus cf. thurmanni Pictet and Campiche 1878
Gallagher 1984
    = Ischyodus thurmanni Pictet and Campiche 1878
Gallagher 2002
Acipenseriformes - Acipenseridae
Acipenser cf. albertensis Lambe 1902
Gallagher 2002
Reptilia - Testudines
Osteopygis emarginatus Cope 1868
Gallagher 1984 2 specimens
ANSP 15335; NJSM 11872
    = Euclastes wielandi Hay 1908
Ullmann et al. 2018
RU-EFP-00009 and RU-EFP-00004
Toxochelys atlantica Zangerl 1953
White 1972 4 specimens
synonym of Euclastes wielandi
ANSP 18709; NJSM 12295, 12321, 12374
Peritresius cf. emarginatus
Gallagher 2002
Peritresius cf. ornatus (Leidy 1856)
Gallagher 1993 1 specimen
NJSM 13735
Reptilia - Testudines - Adocidae
Adocus beatus (Leidy 1865)
Gallagher 1984 1 specimen
ANSP 15356, a shell (1 measurement)
Reptilia - Testudines - Kinosternoidea
Agomphus sp. Cope 1871
White 1972 1 specimen
ANSP 15359
    = Agomphus turgidus Cope 1870
Gallagher 2002
synonym of Agomphus pectoralis
Reptilia - Testudines
Taphrosphys sulcatus (Leidy 1856)
Gaffney 1975 7 specimens
ANSP 15358, 15544; NJSM 10410, PU 18706-18708, ANSP 15544
Taphrosphys molops Cope 1870
Gallagher 1984 1 specimen
synonym of Taphrosphys sulcatus
NJSM 11340 skull fragments
cf. Bothremys sp. Leidy 1865
Gallagher 2002
Reptilia - Mosasauridae
Mosasauridae indet. Gervais 1852
Gallagher 2002
Halisaurus platyspondylus (Marsh 1869)
Gallagher 1993 1 specimen
NJSM 12146
Plioplatecarpus sp. Dollo 1882
Olson and Parris 1987
Mosasaurus sp. Parkinson 1822
Gallagher 1984
Mosasaurus maximus Cope 1869
Gallagher 1993 1 specimen
synonym of Mosasaurus hoffmannii
NJSM 11332, teeth
Reptilia
Thoracosaurus sp. Leidy 1852
Gallagher 1984 1 specimen
Thoracosaurus neocesariensis in ref 7438
    = Thoracosaurus neocesariensis De Kay 1842
Gallagher 1993
NJSM 11885
Bottosaurus harlani (Meyer 1832)
Gallagher 1984 1 specimen
NJSM 11265
cf. Procaimanoidea sp. Gilmore 1946
Gallagher 1984 2 specimens
NJSM 11305, 11885
Bottosaurus tuberculatus n. sp. Cope 1870
Cope 1870 1 specimen
nomen dubium belonging to Crocodylia
Small individual, 27 vertebrae, 50 scutes, appendicular elements
Diplocynodon sp. Pomel 1847
Gallagher 1984 1 individual
    = Borealosuchus threeensis n. sp. Brochu et al. 2012
Brochu et al. 2012
NJSM 11902 - type (isolated left ectopterygoid and lower jaws with associated postcranial remains); NJSM 11903 - referred material (vertebrae and osteoderms), collected later but probably from same individual as type
Hyposaurus rogersii Owen 1849
Gallagher 1984
    = Hyposaurus sp. Owen 1849
Olson and Parris 1987
Aves indet. Linnaeus 1758
Gallagher 1984 3 specimens
NJSM 12119, 12248; ANSP 15713
Reptilia - Charadriiformes
Graculavus ? velox Marsh 1872
Olson and Parris 1987 1 specimen
NJSM 11854
Reptilia - Charadriiformes - Graculavidae
Graculavidae indet. Fürbringer 1888
Olson and Parris 1987 1 specimen
NJSM 11302
Palaeotringa ? littoralis Marsh 1870
Olson and Parris 1987 1 specimen
NJSM 11303
Reptilia - Charadriiformes
Telmatornis priscus Marsh 1870
Olson and Parris 1987 2 specimens
ANSP 15541; NJSM 11853
Palaeotringa vetus Marsh 1870
Gallagher 1993 1 specimen
synonym of Telmatornis priscus
ANSP 15360
Reptilia - Procellariiformes
? Procellariiformes indet. Fürbringer 1888
Olson and Parris 1987 1 specimen
ANSP 15713
Reptilia - Tytthostonychidae
Tytthostonyx glauconiticus n. gen., n. sp. Olson and Parris 1987
Olson and Parris 1987 1 specimen
NJSM 11341
Actinopteri
Teleostei indet. Müller 1846
Gallagher 2002
originally entered as "Teleost indet."
Actinopteri - Aulopiformes - Enchodontidae
Enchodus cf. serrulatus
Gallagher 1984
Enchodus cf. ferox Leidy 1855
Gallagher 1984
    = Enchodus ferox Leidy 1855
Gallagher 2002
Actinopteri - Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
Gallagher 1984
Actinopteri - Tselfatiiformes - Plethodidae
cf. Bananogmius sp. Whitley 1940
Gallagher 2002
see common names

Geography
Country:United States State/province:New Jersey County:Gloucester
Coordinates: 39.8° North, 75.2° West (view map)
Paleocoordinates:40.2° North, 51.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
*Period:Late/Upper Cretaceous *Epoch:Senonian
*International age/stage:Late/Upper Maastrichtian
Key time interval:Late/Upper Maastrichtian - Early/Lower Paleocene
Age range of interval:70.60000 - 61.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Rancocas Formation:Hornerstown
Local section:Inversand Pit Local bed:2
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: 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"
Lithology and environment
Primary lithology:glauconitic poorly lithified sandstone
Includes fossils?Y
Environment:shallow subtidal indet. Tectonic setting:passive margin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Articulated whole bodies:some
Associated major elements:many
Disassociated major elements:many
Collection methods and comments
Collection methods:salvage,selective quarrying,field collection
Reason for describing collection:paleoecologic analysis
Collectors:Regensburg and Dilkes Collection dates:1957; Aug 1960
Metadata
Also known as:KT loc. 428; Main Fossiliferous Layer; Jean and Ric Edelman Fossil Park
Database number:26819
Authorizer:W. Kiessling, J. Alroy, M. Carrano, P. Holroyd, P. Mannion Enterer:W. Kiessling, P. Holroyd, J. Alroy, J. Tennant, M. Carrano, P. Mannion
Modifier:M. Carrano Research group:marine invertebrate,vertebrate
Created:2002-11-05 04:32:43 Last modified:2023-09-14 15:18:20
Access level:the public Released:2002-11-05 04:32:43
Creative Commons license:CC BY
Reference information

Primary reference:

14981. 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]

Secondary references:

39439 C. A. Brochu, D. C. Parris, B. S. Grandstaff, R. K. Denton, Jr., and W. B. Gallagher. 2012. A new species of Borealosuchus (Crocodyliformes, Eusuchia) from the Late Cretaceous–early Paleogene of New Jersey. Journal of Vertebrate Paleontology 32(1):105-116 [P. Mannion/P. Mannion/M. Carrano]
67651 D.J. Cicimurri and D.A. Ebersole. 2015. Paleocene chimaeroid fishes (Chondrichthyes: Holocephali) from the eastern United States, including two new species of Callorhinchus. PaleoBios 32:1-29 [P. Holroyd/P. Holroyd/P. Holroyd]
35435 E. D. Cope. 1870. Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part II. Transactions of the American Philosophical Society, New Series 14:105-235 [M. Carrano/M. Carrano/M. Uhen]
764 E. S. Gaffney. 1975. A revision of the side-necked turtle Taphrosphys sulcatus (Leidy) from the Cretaceous of New Jersey. American Museum Novitates 2571:1-24 [J. Alroy/M. Sommers/P. Mannion]
39861 W. B. Gallagher. 1984. Paleoecology of the Delaware Valley region. Part II: Cretaceous to Quartenary. The Mosasaur 2:9-43 [M. Uhen/M. Shalap/M. Carrano]
54671 W. B. Gallagher. 1993. The Cretaceous/Tertiary mass extinction event in the North Atlantic coastal plain. The Mosasaur 5:75-154 [M. Carrano/M. Carrano]
7438 W. B. Gallagher. 2002. Faunal changes across the Cretaceous-Tertiary (K-T) boundary in the Atlantic coastal plain of New Jersey: restructuring the marine community after the K-T mass-extinction event. Catastrophic Events and Mass Extinctions: Impacts and beyond. GSA Special Paper 356:291-301 [W. Kiessling/W. Kiessling/M. Carrano]
29037 S. Hope. 2002. The Mesozoic radiation of Neornithes. In L. M. Chiappe and L. M. Witmer (eds.), Mesozoic Birds: Above the Heads of Dinosaurs. University of California Press, Berkeley 339-388 [J. Alroy/J. Alroy/M. Carrano]
11982 J. Leidy. 1873. Part I. Contributions to the extinct vertebrate fauna of the western territories. In F. V. Hayden (ed.), Report of the United States Geological Survey of the Territories 1:1-358 [M. Uhen/M. Uhen/M. Carrano]
29473ETE S. L. Olson and D. C. Parris. 1987. The Cretaceous birds of New Jersey. Smithsonian Contributions to Paleobiology 63:1-22 [M. Carrano/M. Carrano]
67648 P. V. Ullmann, Z. M. Boles, and M. J. Knell. 2018. Insights into cranial morphology and intraspecific variation from a new subadult specimen of the pan-cheloniid turtle Euclastes wielandi Hay, 19. PaleoBios 35:1-22 [P. Holroyd/P. Holroyd]
85047 D. B. Weishampel and L. Young. 1996. Dinosaurs of the East Coast xiii-275 [M. Carrano/M. Carrano]
34331 R. S. White, Jr. 1972. A recently collected specimen of Adocus (Testudines: Dermatemydidae) from New Jersey. Notulae Naturae 447:1-10 [J. Alroy/J. Alroy]