Another NJ Brook Unknown

[wetwilly]

Hi,

I was thinking this was an ammonite fragment or maybe a piece of H. Gabri (or am I way off  - again).  Then I saw some details that might help with an ID.  Any suggestions?

Thanks.

[doushantuo]

People here have a funny way of dealing with Linnean binomials.

No italics,and abbreviated genus names.

[wetwilly]

I would like to say on behalf of the "people" , thanks doushantuo, for the encouraging and informative reply.

[njfossilhunter]

I'm stumped......

[Kane]

You definitely have a knack for finding the specimens that make for a mystery! That pustular texture is really interesting. I can't make it out in the photos very well, but it seems to appear in various areas on this one.

[pinkus]

This doesn't have the color or texture of anything that I have found in Monmouth County before. Looks like bryozoans to me.

[frankh8147]

I'm torn between bryozoans (the glaciers brought fossils from a lot of older eras to the brooks) or crustacean. I'm leaning toward crustacean but the texture doesn't match Hopalaria.

[erose]

Weird, weird, weird...

 

[wetwilly]

Yes!  I don't understand . 

[wetwilly]

I'll bring it to ram on the 9th . Maybe that will shed some light. 

[frankh8147]

2 hours ago, wetwilly said:

I'll bring it to ram on the 9th . Maybe that will shed some light. 

Yup! That should do it!

 

Edited: I actually wanted to see this "in hand" so that should be perfect!

[The Jersey Devil]

It's a Cretaceous concretion with bryozoans attached to it.

[non-remanié]

3 hours ago, josephstrizhak said:

It's a Cretaceous concretion with bryozoans attached to it.

 

Close, but I'd say its a piece of bivalve steinkern ( or possibly ammonite) with impressions of bryozoan attached.   I've seen similar bryozoan on many inverts including ammonites. The bryozoans attached to the shells before dissolution.

[The Jersey Devil]

On 6/22/2018 at 8:35 PM, non-remanié said:

 

Close, but I'd say its a piece of bivalve steinkern ( or possibly ammonite) with impressions of bryozoan attached.   I've seen similar bryozoan on many inverts including ammonites. The bryozoans attached to the shells before dissolution.

 

Yeah, that seems like it. The shell-like surface you are talking about which is opposite the bryozoan side can be seen in pic 3, right? I have a definite concretion with a bryozoan impression on it, so I guess they sometimes cling to stones too.

[Carl]

I'm with @non-remanié 100% - I've found things just like this before. In fact, a close look at many of the steinkerns from the brooks will show these bryozoan impressions.