Glenshaw Formation Unknowns

[minnbuckeye]

During a family reunion in Pittsburg, Pennsylvania, I was able to sneak out and check some road cuts for fossils while everyone was sleeping. Nothing earth shattering today. But I am always curious when I do not recognize something. The usual smattering of Pecopteris Seed Ferns were found.

 

 

 

But assistance is needed for a few finds that I can not identify.

 

3. has a depression that looks like it could be an impression of a seed pod?

 

 

4. has a round orangish bumpy surface on the right side of the matrix 4 cm wide. It is to the right of the red dot.

 

 

5. Looks to be a clam, something I have not seen in the Glenshaw Formation. Fresh water bivalve?

 

 

6 reminds me of a possible seed pod. Both halves of the specimen are present. It is 2 cm long

 

 

7. is a 2 cm bumpy specimen. 

 

 

8. is similar to 7. but is 3 cm. It is to the right of the red dot.

 

 

9. is a 7 cm branching structure above the red dot. Possibly something like Sphenopteris?

 

 

All thoughts and comments are appreciated.

 

 

[minnbuckeye]

Maybe @cngodles, @NickG, or @Lucid_Bot can help They have hunted the Glenshaw.

[Lucid_Bot]

I think number five is the bi-valve Wilkingia. I have one that looks similar.

[Isotelus2883]

I think your seed pods are all bivalves. 7 and 8 may be some arthropod fragments.

[connorp]

7 and 8 are more likely Stigmaroides rather than arthropod fragments.

 

 

[cngodles]

5 hours ago, Lucid_Bot said:

I think number five is the bi-valve Wilkingia. I have one that looks similar.

Number five is certainly in the same family as Wilkingia. @Lucid_Bot, your example looks like the bivalve Astartella.

Edited July 7 by cngodles

[minnbuckeye]

Thank you for the IDs! It helps me greatly. But 9 still remains unidentified and it was the one I most wanted to understand.

[cngodles]

😥 Pittsburgh. We lobbied hard for that h. The US Board of Geographic Names tried to mandate that all -burgh names turn to -burg, but Pittsburgh sort of ignored the Federal mandate. (https://en.wikipedia.org/wiki/Name_of_Pittsburgh)

 

I'm not sure about number 9; it looks like normal plant fossils I find here often. I'll peek in Gillespie's guide today; it is about the only helpful plant ID guide for this region.

[Fossildude19]

Plant Fossils of West Virginia. PDF format (and others) available.

[minnbuckeye]

4 hours ago, Fossildude19 said:

Plant Fossils of West Virginia.

 

Excellent reference! Thanks @Fossildude19