Possible Dinosaur tooth?

[LuisSantiago]

Found this while hunting for Shark Teeth in a Creataceous creek bed in monmouth County new jersey 

[Fossildude19]

Looks more like a fish tooth to me.

Something like Xiphactinus .

Wait for other opinions, though.

 

Cropped and brightened:

 

 

 

 

 

@Carl  @frankh8147

 

[patelinho7]

Brighter photos are needed. It looks like a black blob. +1 for fish, though.

[Carl]

This is really too beat up and worn to properly identify. My best guess would be an Ischyrhiza mira rostral denticle.