Calvert Formation Fossil help

[Twitch]

Hello. Have found nearly 500 sharks teeth over the last 3 months coming out of the Calvert formation in VA and MD. attached is a pic of a few of the 'other' type fossils we've found. I know the bottom one is a sharks tooth. The one in the center is the one I don't know. I looks like a dog tooth so I'm assuming it's a dolphin or porpoise. The one to the right of it is a porpoise canine, the one to the right of that I think is an alligator (or crocodile?), the far right one looks like a marine mammal again to me, but it's not in great shape. Any help on the vertabre would be appreciated as well. There's a dental or crushing plate but I don't know what it's from. The fossil on the far left is the most complete one I've found. I have other large pieces that appear to have teeth marks in them. Is this normal? Is this possible?

Thanks for the help.

Joe

 

[drharley1969]

Awsome finds u have there wished I could find stuff like that where I live

 

[Perico]

You have a fish spine on the right, the crushing plate is from a Ray, and cow shark tooth on the bottom. Maybe Dire wolf canine can't tell. Nice finds.

 

[masonh]

That is a nice cow shark tooth in center. Agree with ray crusher plate. For the odd tooth I believe you have a seal molar. The bone on left may be dolphin humerus; not an uncommon find in marine deposits.

 

[masonh]

It is not unusual at all to find bite marks from sharks in fossil whale/dolphin bones.

 

[Harry Pristis]

Hello. Have found nearly 500 sharks teeth over the last 3 months coming out of the Calvert formation in VA and MD. attached is a pic of a few of the 'other' type fossils we've found. I know the bottom one is a sharks tooth. The one in the center is the one I don't know. I looks like a dog tooth so I'm assuming it's a dolphin or porpoise. The one to the right of it is a porpoise canine, the one to the right of that I think is an alligator (or crocodile?), the far right one looks like a marine mammal again to me, but it's not in great shape. Any help on the vertabre would be appreciated as well. There's a dental or crushing plate but I don't know what it's from. The fossil on the far left is the most complete one I've found. I have other large pieces that appear to have teeth marks in them. Is this normal? Is this possible?

Thanks for the help.

Joe

I agree with 'masonh' . . . the cheek tooth is from a seal. The canine is likely to be from a seal as well, especially since porpoises don't have distinctive canines and you've shown us no land mammal remains.

We'd need lateral views of the vertebrae for confident identifications. You can compare with these examples:

a ray vertebra ​

 

[Twitch]

Harry / Mason - Thanks for the info. We found two more mammal canines this weekend bringing the total up to 8 or 9.

Thanks.