Pennsylvanian rock fossils?

[Atchison Arrowhead]

I found some interesting specimens as I was probing soft reddish colored Rock (sandstone?) that had been dumped in a field near my house  Atchison Kansas. I could be wrong with my assumption is that it's from the nearby Missouri River. A handful of interesting observations pictured here but I'm not sure about.

 

1) The hard oozy substance on one rock. Is that amber?

2) the half dollar sized impression that looks like it's an Amber upon another rock. Could that be some kind of plant?

3) one rock has a thin black band across it. Wondering what ancient event might be known to cause that?

4) most interesting, I found a few Trilobite looking figures. From what I've dug into so far, looks like they might bea Carolina praying mantis oothecas. I have read that these can be hard, but they feel hard like the rock, or at least close to it. Nearby I did see s momome cotton-like material that look like it could be another stage of this creature. But then again it wasn't very thick and just a little bit of cotton material there. I have the suspicion that perhaps these were more ancient oothecas partially fossilized. But that was only a wild guess. Any insights into any of the above would be most welcome. Thanks for any help you can provide.

[Fossildude19]

First picture is a bunch of praying mantis egg cases.

Second looks like a fish scale, but more pictures needed.

Not seeing anything fossil-like in picture 3 and 4.

What are you seeing in those?

[Fin Lover]

10 minutes ago, Atchison Arrowhead said:

3) one rock has a thin black band across it. Wondering what ancient event might be known to cause that?

 

11 minutes ago, Atchison Arrowhead said:

1) The hard oozy substance on one rock. Is that amber?

@Fossildude19, I think these were his questions on those.

[Fossildude19]

Just now, Fin Lover said:

 

@Fossildude19, I think these were his questions on those.

 

Ooops.

Comments out of sync with order of the pictures.  

[Fossildude19]

@Atchison Arrowhead

 

I don't think amber for picture number 3 and pic 4 - the black line could be anything, mineral deposit, or different sediment layer. Pretty thin.

Would have to see if it goes through the entire block.

[Sagebrush Steve]

Hard to say, but the second to last photo looks like some epoxy that ran down the side of the rock.  If these rocks were dumped there from somewhere else they could be leftovers from some sort of construction activity.  

[FranzBernhard]

Amber-like stuff could be tree resin or epoxy, as already said.

Franz Bernhard