THE SHARKS

The geographic location of where a fossil was found is consider to be one of the most important factors in determining it's age. The geological time period for most collecting sites in New Jersey is well documented (Atlantic Costal Plain - USGS). As an aid to identification, I've divided this section into two time periods, Cretaceous and Tertiary.

CRETACEOUS

Goblin Scapanorhynchus texanus	Crow Squalicorax sp.	Crow Pseudocorax affinis
Very Common	Very Common	Scarce
Extinct Mackerel  Archaeolamna kopingensis	Extinct Mackerel Cretolamna appendiculata	Extinct Mackerel  Protolamna borodini
Very Common	Common	Micro

Hybodont Hybodus Sp.	Angle Shark Squatina hassei	Hybodont Lonchidion babulskii
Uncommon	Micro	Micro
Nurse Shark Cantioscyllium decipiens	Extinct Thresher Paranomotodon angustidens
Micro	Common

Sand Tiger Carcharias samhammeri	Sand Tiger Carcharias Holmdelensis	Sand Tiger Odontaspis aculeatus
Uncommon	Uncommon	Very uncommon

Lemon Shark Negaprion eurybathrodon	Gray Carcharhinus sp.	Extinct Tiger Shark Galeocerdo aduncus
Very Common	Uncommon	Common

Extinct Tiger Galeocerdo latidens	Eocene Tiger Galeocerdo eaglesomei	Longtooth Tiger Physogaleus contortus
Very Uncommon	Uncommon	Very Common

Extinct Shortfin Mako Isurus desori	Extinct Early Mako Isurus praecursor	Extinct Mackerel Shark Xiphodolamia ensis
Uncommon	Uncommon	Very Uncommon

Cow Notorynchus sp.	Ric Carcharocles auriculatus	Chub Carcharocles chubutensis
Uncommon	Uncommon	Uncommon
Hammerhead Sphyrna laevissima	Common Thresher Alopias latidens
Scarce	Very Uncommon

Sand Tiger Odontaspis reticulata	Sand Tiger Striatolamia macrota	Sand Tiger Carcharias cuspidata
Very Common	Common	Very Common
Sand Tiger Jaeckelotodus trigonalis	False Mako Parotodus benedeni	Extinct Goblin Anomotodon novus
Uncommon	Very Uncommon	Uncommon
Sharpnose Physogaleus secundus	Snaggletooth Hemipristis serra	Little Snaggletooth Hemipristis curvatus(?)
Uncommon	Uncommon	Uncommon
	Extinct Mackerel Cretolamna appendiculata
	Uncommon

Vertebrae Coprolites	Pathological	Shark  Cartilage
Common	Uncommon	Uncommon