big brook shark/ray/jaw id

[brad hinkelman]

well with the weather nice decided to leave work early and play in the stream,,,,:)..would like to confirm if the shark teeth are mackerel(just different then my others)  and if the ray tooth is brachyrhizodus and if any info on what appears to be jaw piece.....thanks

[brad hinkelman]

also just a rock? the littlest things intrigue me

[Fossildude19]

The jaw is likely Enchodus. 

 

The small rock may be a paleozoic Favosites type coral - they are found sometimes  in the creeks. 

Regards,

[Carl]

The teeth are probably both Cretalamna appendiculata, the ray is definitely Brachyrhizodus wichitaensis, and I agree that the jaw is Enchodus. But the last one is most likely a non-fossil crystal. The favositids have a more definitive structure and on a larger scale.

[Rockwood]

10 minutes ago, Carl said:

 The favositids have a more definitive structure and on a larger scale.

This works well the other way around too. Tabulates that have this scale are usually very precisely geometrical.