Ellisdale Site (Cretaceous of the United States)

Where: Monmouth County, New Jersey (40.3° N, 74.3° W: paleocoordinates 39.4° N, 44.0° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Marshalltown Formation (Matawan Group), Judithian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; unlithified, pebbly, sideritic, intraclastic sandstone

• "estuarine channel... storm deposit"
• "normally not lithified... coarser sandy layer... characterized by siderite clay pebbles"

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve

Primary reference: B. S. Grandstaff, D. C. Parris, R. K. Denton, Jr. and W. B. Gallagher. 1992. Alphadon (Marsupialia) and Multituberculata (Allotheria) in the Cretaceous of eastern North America. Journal of Vertebrate Paleontology 12(2):217-222 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14455: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano, Patricia Holroyd, Philip Mannion and Kaitlin Maguire

Creative Commons license: CC BY (attribution)

Taxonomic list

• locality is very close to the triple junction of Monmouth, Burlington, and Mercer counties: see Gallagher et al. 1986KA date of 71.6 +/- 1.35 on glauconite is rejected by the authors because glauconite dates often are anomalously young
Gastropoda
 Naticoidea - Naticidae
"Albula sp." = Polinices
"Albula sp." = Polinices Monfort 1810 moon snail
Chondrichthyes
 Squatiniformes - Squatinidae
Squatina hassei Leriche 1929 angel shark
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1837 elasmobranch
 Hybodontiformes -
Lissodus (Lonchidion) sp. Brough 1935 elasmobranch
 Euselachii -
Batomorphii indet. Capetta 1980 elasmobranch
"unnamed freshwater ray"
 Sclerorhynchiformes - Sclerorhynchidae
? Sclerorhynchus sp.9 Woodward 1889 elasmobranch
Ischyrhiza mira Leidy 1856 elasmobranch
 Sclerorhynchiformes - Ptychotrygonidae
Ptychotrygon vermiculata Cappetta 1975 elasmobranch
 Myliobatiformes - Rhombodontidae
Rhombodus laevis Cappetta and Case 1975 stingray
 Myliobatiformes - Myliobatidae
Pseudohypolophus sp. Cappetta and Case 1975 eagle ray
Brachyrhizodus wichitaensis Romer 1942 eagle ray
 Lamniformes - Anacoracidae
Pseudocorax granti mackerel shark
Squalicorax kaupi Agassiz 1843 crow shark
 Lamniformes -
 Lamniformes - Cretoxyrhinidae
Cretolamna appendiculata Agassiz 1843 mackerel shark
"C. appendiculata lata"
Cretodus arcuata mackerel shark
Cretodus borodini Cappetta and Case 1975 mackerel shark
 Lamniformes - Odontaspididae
Synodontaspis holmdelensis Cappetta and Case 1975 sand tiger shark
Odontaspis samhammeri sand tiger shark
 Euselachii - Mitsukurinidae
Scapanorhynchus texanus Roemer 1852 goblin shark
 Orectolobiformes - Orectolobidae
Ginglymostoma globidens9 Cappetta and Case 1975 wobbegong
 Chimaeriformes - Callorhynchidae
Ischyodus bifurcatus plownose chimaera
Actinopteri
 Acipenseriformes - Acipenseridae
Acipenser sp. Linnaeus 1758 sturgeon
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
 Salmoniformes - Enchodontidae
Enchodus ferox9 Leidy 1855
 Acanthomorphata - Sciaenidae
cf. Platacodon sp. Marsh 1889
 Ichthyodectiformes - Ichthyodectidae
Xiphactinus audax Leidy 1870
 Pycnodontiformes - Pycnodontidae
 Amiiformes - Amiidae
Amia cf. fragosa Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Atractosteus sp.9 Rafinesque 1820 gar
Osteichthyes
 Temnospondyli - Albanerpetontidae
Albanerpetontidae indet.10 Fox and Naylor 1982 tetrapod
 Salientia -
Anura indet.10 Fischer von Waldheim 1813 frog
 Salientia - Pelobatidae
Pelobatidae indet.9 Lataste 1879 spadefoot toad
 Salientia -
cf. Scotiophryne sp.10 Estes 1969 frog
cf. Theatonius sp.10 Fox 1976 frog
 Salientia - Discoglossidae
Discoglossidae indet.8 Günther 1859 painted frog
 Proteida - Batrachosauroididae
Parrisia neocesariensis n. gen. n. sp.8 Denton and O'Neill 1998 salamander
Parrisia neocesariensis8 Denton and O'Neill 1998 salamander
 Caudata - Urodela
cf. Proamphiuma sp.10 Estes 1969 salamander
cf. Habrosaurus sp.10 Gilmore 1928 siren
Reptilia
 Testudines - Dermochelyoidae
Corsochelys sp. Zangerl 1960 sea turtle
NJSM 14600
 Testudines - Trionychidae
Trionychidae indet.1 Gray 1825 softshell turtle
 Testudines - Adocidae
Adocus beatus Leidy 1865 turtle
NJSM 12711
 Testudines - Bothremydidae
"Bothremys barberi" = Chedighaii barberi
"Bothremys barberi" = Chedighaii barberi Schmidt 1940 sideneck turtle
NJSM 12704–12707, 12718 (Gallagher, Parris, and Spamer, 1986: 25); identification confirmed by Gaffney et al. 2006
 Theropoda -
Theropoda indet. theropod
NJSM 14434, 14504, 14236, 13096
 Avetheropoda - Dromaeosauridae
Dromaeosauridae indet.3 Colbert and Russell 1969 coelurosaur
two tooth morphotypes
 Avetheropoda -
Tyrannosauroidea indet.3 Walker 1964 coelurosaur
two tooth morphotypes
cf. Dryptosaurus sp.3 Marsh 1877 coelurosaur
two tooth morphotypes
cf. Dryptosaurus sp.9 Marsh 1877 coelurosaur
Ornithomimosauria indet.3 ornithomimosaur
Coelosaurus sp.6 Leidy 1865 ornithomimosaur
 Neornithischia -
Ornithopoda indet. bird foot dinosaur
 Neornithischia - Hadrosauridae
Hadrosauridae indet.9 Cope 1869 hadrosaurid
NJSM 11365, 14036, 14163, 14510, 12703, 13771, 13089, 14229, 14582, 14514, 13086, 12133, 13932, 12134, 14266, 14201, 13897, 13104, 14590, 14227, 14228, 14387, 13090, 12713, 15058
cf. Edmontosaurus sp.9 Lambe 1917 hadrosaurine
NJSM 12132
Hadrosaurus sp. Leidy 1858 hadrosaurine
Hypsibema crassicauda Cope 1869 hadrosaurid
NJSM 12702
 Loricata -
Crocodylia indet.2 crocodilian
 Crocodylia -
Diplocynodon sp. Pomel 1847 crocodilian
NJSM 14597, 14363
 Crocodylia - Alligatoridae
aff. Allognathosuchus sp.9 Mook 1921 crocodilian
 Crocodylia -
cf. Deinosuchus rugosus4 Emmons 1858 crocodilian
NJSM 16568
Deinosuchus rugosus9 Emmons 1858 crocodilian
cf. Brachychampsa sp. Gilmore 1911 crocodilian
numerous specimens, mostly broken teeth and scutes, NJSM
 Squamata - Anguidae
? Anguidae indet.9 Gray 1825 squamates
NJSM 14209
Glyptosaurinae indet.7 Marsh 1872 squamates
cf. Odaxosaurus sp. Gilmore 1928 squamates
cf. Machaerosaurus sp.7 Gilmore 1928 squamates
 Squamata - Mosasauridae
cf. Halisaurus sp. Marsh 1869 mosasaur
 Squamata -
Lacertilia indet.9 lizard
NJSM 14210, 14525, 14211, 14599, 14302
 Squamata - Globauridae
? Contogenys sp.9 Estes 1969 lizard
 Squamata - Chamopsiidae
cf. Haptosphenus sp. Estes 1964 lizard
Prototeius stageri5 Denton and O'Neill 1995 lizard
Prototeius stageri n. gen. n. sp.5 Denton and O'Neill 1995 lizard
Mammalia
 Theriiformes -
"Alphadon lulli" = Protalphadon lulli
"Alphadon lulli" = Protalphadon lulli Clemens 1966 metatherian
 Didelphimorphia - Stagodontidae
cf. Didelphodon sp.11 Marsh 1889 marsupial
 Multituberculata - Cimolomyidae
cf. Cimolomys clarki Sahni 1972 multituberculate
 Multituberculata - Cimolodontidae
Cimolodontidae indet. Marsh 1889 multituberculate