Three finds from Calvert Cliffs

[bthemoose]

Below are three recent finds from Maryland's Calvert Cliffs (Miocene) that have me stumped. I'm not sure if they're all fossils, but hopefully you can help me figure that out. Thanks in advance for your thoughts!

 

#1 - This looks like possibly coral to me, but is very different (and much smaller) than the Astrhelia palmata coral fossils that are pretty common from this spot.

 

 

#2 - I have no idea on this one, but the lines on the sides made me think it could be a fossil.

 

 

#3 - I wondered if this might also be some sort of coral ... or maybe just a volcanic rock? Whatever it is, I haven't seen anything similar from this area before.

 

[digit]

#2 looks very much like an internal mold of a barnacle (a steinkern).

 

 

Cheers.

 

-Ken

[Rockwood]

#1 Bryozoan sure sounds like it.

#3 Must be something similar at least to tufa. I think.

[bthemoose]

12 minutes ago, digit said:

#2 looks very much like an internal mold of a barnacle (a steinkern).

 

 

Cheers.

 

-Ken

Thanks! That makes sense. There are a lot of barnacle fossils here, but this is the first steinkern of one I’ve found/noticed.

[bthemoose]

9 minutes ago, Rockwood said:

#1 Bryozoan sure sounds like it.

#3 Must be something similar at least to tufa. I think.

Thank you!

[LabRatKing]

I agree with digit and Rockwood.

Bryozoan

Barnacle

Tuffa, pumice, or other geological.