Strange rock from Davenport, Iowa

[Dad_and_Daughter]

My daughter typically finds sponge fossils and crinoid fossils at our home here in Iowa. However, she found this little guy and brought it in the house to keep.

 

We aren’t sure what it is. I thought maybe it had a lot of iron in it so I used a strong magnet and it didn’t show any ferromagnetic properties.

 

it looks like small bones all bunched together to us. However it is so much different than what we usually find that we thought we would ask for advice.

 

Any thoughts? Could this be a fossil or just some mineral deposit?

 

we look forward to your responses.

Edited January 26, 2019 by Dad_and_Daughter

[DPS Ammonite]

It might be a trace fossil such as burrows. What age and formation is it?

 

Also, what is the color of the streak from the dark mineral? You can streak it against the bottom of your toilet tank lid if you do not have a piece of unglazed porcelain.

[Fossildude19]

Welcome to the Forum.  

 

I would say hematite or iron concretion. 
Not seeing any fossil here.

[ynot]

I agree with a hematite (or other iron oxide).

 

[minnbuckeye]

Welcome to the forum from just across the border in Minnesota. Would agree this is not a fossil. I'd love to see pictures of the fossils you have found though!! 

 

 

8 hours ago, DPS Ammonite said:

What age and formation is it?

 

@DPS Ammonite Davenport sits on the Devonian/Silurian junction but the river systems around there (Mississippi River and others) could have transported it from a long ways away. Would need to know the collecting location a little more specific to make a judgment.

 

 Mike

[abyssunder]

I agree with the others.
Some of the features may be similar to the ones below.