Big Brook is full of surprises!
Sharks, Rays, & Skates
Big Brook is located in Monmouth Co. and transects the border of Colts Neck and Marlboro, New Jersey.  The stream cuts through sediments that were deposited during the Late Cretaceous.  This web site is for the aid in identification of the shark teeth and the other fish, reptile, and mammal remains from this site.  This locality is famous for its' prolific fossils, especially the diverse and plentiful shark fauna.
Big Brook Identification Page
Email Me with your Questions!
Having trouble identifying material from Big Brook?
Very Common - You can expect to find multiples of these fossils on an average trip.
Common - You can expect to find one or two of these fossils on an average trip.

Less Common - You can expect to find one of these fossils in a few average trips.

Uncommon -
You can expect to find one or two of these fossils in a year of
                    average trips.

Rare - Only one to a handful of these fossils has been found.
"A Stream of Possibilities"
Explanation of Terms:
To view the picture full size click on the image.
Some of the pictures have multiple views.  These are marked by an *.  Just place the mouse on the picture and let the other picture load.  Then you can toggle back and forth between pictures by running the mouse over them.
All specimens are in the collections of the author, except where noted.
Ed says, "I got one!"
Peter & Derek collecting
Vertebrate &
Invertebrate Collections
The tools of the trade
Shark tooth in matrix
Exogyra in life position
A gaggle of Belemnitella
in the Marl
Elaine scanning the banks
Tony says, "I got one, too!"
Goblin Shark
Crow Shark
Porbeagle Shark
Some of the names of the fauna have changed or have been reassigned.
I marked these in
Green with the old name in quotes.
Porbeagle Shark
Crow Shark
The editor would like to thank the efforts of the following people for which this web site would not be possible:  Edward Otte who is a co-author of this site and all the drawings, Peter Yoost (my dad) for going on many of my adventures, Dave Paris, Barbra Grandstaff, Robert Ramsdell, and Willam Gallager of the New Jersey State Museum, Carl Manning from the AMNH, Diana Tasco for typing.
Goblin Shark
The Identification Pages:
Geology of Big Brook
Before you get started
Some things you should know
General Information Pages:
All mesurements in pictures are in inches.
Local Organizations and Clubs:
New Jersey Paleontological Society
Delaware Valley Paleontological Society
The worlds first dinosaur skeleton: Hadrosaurus foulkii
Big Brook Article
More on Shark teeth
Mid-Atlantic sites including Big Brook
The Place & The People
North East Paleo Group
Upper Cretaceous Formations
This web site has a SEM image of a Shark tooth from Big Brook, probably a Squalicorax sp.
Web Page Featuring Shark Teeth from New Jersey and other States
The Colt's Neck Big Brook Park website
More on the Geology from Hofstra University
Article everyone should read
Site on New Jersey Geology
Another site devoted to New Jersey Fossils
New Stuff that's being found
This is a GREAT site about New Jerseys second dinosaur:
New Big Brook Blog Post your picts of you and what you found.  Updated 9/4/11.
New - Other Fossils of New Jersey
New Jersey Geology site.
Interactive geology map of New Jersey
New Site on New Jersey Geology and Formations
North Jersey Mineralogical Society
Video Links:
Some Kids having fun and finding fossils
News report on New Jersey State Dinosaur
If you have any suggestions of Videos, let me know.
This is what the concretions from Big Brook look like.
These are NOT fossils, but are mineral lumps made of Siderite and Limonite that form mostly in the Mt. Laurel Formation.  They can look like bones and teeth.