Big Brook (general) (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 nearby landmark

When: Late/Upper Campanian (83.5 - 70.6 Ma)

• From Marshalltown, Wenonah and undifferentiated Mount Laurel-Navasink Formations

• group-level stratigraphic resolution

Environment/lithology: marginal marine; gray sandstone and gray, silty sandstone

• Mt Laurel-Navesink: light gray, coarse clastic sand which contains some clay. Wenonah Fm: dark gray, silty, very fine sand. Marshalltown Fm: massive, greenish-gray fine silty sands.

Size classes: macrofossils, mesofossils

Preservation: trace, coprolite

Collection methods: bulk, sieve,

Primary reference: E. M. Lauginiger. 1986. An Upper Cretaceous vertebrate assemblage from Big Brook, New Jersey. The Mosasaur 3:53-61 [J. Alroy/E. Leckey/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32181: authorized by John Alroy, entered by Erin Leckey on 09.06.2003, edited by John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Gryphaeidae
Chondrichthyes
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1837 elasmobranch
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza mira Leidy 1856 elasmobranch
 Myliobatiformes - Rhombodontidae
"Rhombodus levis" = Rhombodus laevis
"Rhombodus levis" = Rhombodus laevis Cappetta and Case 1975 stingray
 Myliobatiformes - Myliobatidae
Pseudohypolophus sp. Cappetta and Case 1975 eagle ray
Brachyrhizodus wichitaensis Romer 1942 eagle ray
 Selachii -
Selachii indet. shark
vertebrae and coprolites
 Lamniformes - Anacoracidae
Squalicorax sp. Whitley 1939 crow shark
 Lamniformes -
 Lamniformes - Cretoxyrhinidae
Plicatolamna arcuata Woodward 1894 mackerel shark
Cretolamna appendiculata Agassiz 1843 mackerel shark
"Plicatolamna borodini" = Cretodus borodini Cappetta and Case 1975 mackerel shark
 Lamniformes - Odontaspididae
Odontaspis sp. Agassiz 1843 sand tiger shark
 Euselachii - Mitsukurinidae
Scapanorhynchus texanus Roemer 1852 goblin shark
 Chimaeriformes - Callorhynchidae
Ischyodus bifurcatus plownose chimaera
Actinopteri
 Teleostei -
Teleostei indet.
isolated scale
 Salmoniformes - Enchodontidae
Enchodus ferox Leidy 1855
93 isolated teeth, 63 jaw fragments
 Ichthyodectiformes - Ichthyodectidae
Xiphactinus sp. Leidy 1870
 Pycnodontiformes - Pycnodontidae
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Squamata - Mosasauridae
Mosasaurus sp. Parkinson 1822 mosasaur
teeth (fragmentary)
Stephanodus
  - Trigonodontidae
Stephanodus sp. Zittel 1883