Calvert County Fossils

[Tyrannosaurus-wreck]

Hi everyone! I went to Flagponds in Calvert County MD a few weeks ago and came back with my biggest *actual* fossil haul so far (I posted here my first time with about 50 barnacle pieces)! I know there are a few ray plate fragments in here, and I've included what I think are bone pieces although I'm not entirely sure. Anyway, I'm having a lot of trouble identifying my shark's teeth, so any help with this would be greatly appreciated! I'll post numbered photos of my finds with this. If anyone needs a zoomed in, clearer or different angle pic I'm happy to provide more. (Advance apologies for the broken down photos, these teeth are really tiny so I had to take multiple pics to make them visible)

Edited July 10, 2021 by Tyrannosaurus-wreck
Forgot to say I can post more pics if necessary

[TRexEliot]

31 looks like modern fish bone, 34 and 35 look like fossil bone (probably cetacean or other marine mammal), 36-39 all look like stingray teeth, and 44 is a piece of fossilized crab claw, 

[Tyrannosaurus-wreck]

11 minutes ago, TRexEliot said:

31 looks like modern fish bone, 34 and 35 look like fossil bone (probably cetacean or other marine mammal), 36-39 all look like stingray teeth, and 44 is a piece of fossilized crab claw, 

Thanks!! I'm glad 31 is a fish bone, I knew it was modern but not what it came from so I was half afraid I'd brought back the remains of someone's poultry dinner

[bthemoose]

Most of your shark teeth look like gray (Carcharhinus sp.) and lemon (Negaprion eurybathrodon) teeth. Gray sharks are difficult to ID down to individual species and since these ones are fairly worn, you'll probably need to stick with just the genus. Lemon shark teeth can also look quite similar to gray shark lower teeth, and with the wear, they may not be possible to distinguish.

 

#19 could be the tip of a tiger shark (Galeocerdo aduncus) tooth.

 

Fossilguy.com is a good resource to help ID most of the shark teeth and other fossils you can find from the Calvert Cliffs. The specific shark and ray tooth ID page for Calvert is here.

[Coco]

43 is probably a lagomorph (rabbit) tooth, but we need to see the occlusal (chewing) surface.

 

Coco

[Tyrannosaurus-wreck]

On 7/10/2021 at 6:53 PM, bthemoose said:

Most of your shark teeth look like gray (Carcharhinus sp.) and lemon (Negaprion eurybathrodon) teeth. Gray sharks are difficult to ID down to individual species and since these ones are fairly worn, you'll probably need to stick with just the genus. Lemon shark teeth can also look quite similar to gray shark lower teeth, and with the wear, they may not be possible to distinguish.

 

#19 could be the tip of a tiger shark (Galeocerdo aduncus) tooth.

 

Fossilguy.com is a good resource to help ID most of the shark teeth and other fossils you can find from the Calvert Cliffs. The specific shark and ray tooth ID page for Calvert is here.

Thanks!! 

On 7/12/2021 at 5:48 PM, Coco said:

43 is probably a lagomorph (rabbit) tooth, but we need to see the occlusal (chewing) surface.

 

Coco

Thanks!! Is this picture helpful? 

[Coco]

Hi,

 

Hmmm, and the other side ?

 

Coco

[Al Dente]

It looks like a piece of a barnacle plate.

 

 

[Tyrannosaurus-wreck]

On 7/14/2021 at 2:05 AM, Coco said:

Hi,

 

Hmmm, and the other side ?

 

Coco

This is the other end! It looks like some of it broke off from here