Misidentified fern fossil?

[Sagebrush Steve]

I purchased this fern fossil some years ago from a rock shop in Colorado.  It was identified as a Neuropteris sp. from the Braidwood formation, Johnson County, Missouri, from the Pennsylvanian period.   I have several questions.  First, when I do a Google search I see quite a number of fern fossils being offered for sale with the same provenance.  But when I dive deeper, I can't find a Braidwood formation listed for Johnson County, Missouri.  Here is the USGS listing of geologic units in Johnson County, and I don't see a Braidwood formation listed: https://mrdata.usgs.gov/geology/state/fips-unit.php?code=f29101.  The only Braidwood I have found on Google is the Braidwood biota, part of the Mazon Creek fossil beds in Illinois.  Has this been misidentified or am I missing something?  Also, I'm not sure I can tell the difference between neuropteris and pecopteris species, can anyone give me a good identification?  Thanks!

 

 

12X magnification:

 

25X magnification:

[Fossildude19]

You've got a Pecopteris sp. there. 

This website has a good tutorial. 

[piranha]

Knob Noster is the Pennsylvanian formation in Johnson County, Missouri.  LINK

 

 

 

[Sagebrush Steve]

17 hours ago, Fossildude19 said:

You've got a Pecopteris sp. there. 

This website has a good tutorial. 

 

Thanks Tim and piranha, you've been very helpful.  Now let's see if I'm any good at using what I've learned.  First, I've copied the graphic from Tim's link showing how to identify ferns here:

 

Now here are a couple of photos of another fern, this one inherited from my mother so I know next to nothing about where it came from except most likely in the USA.  From what I can tell, this should be a Neuropteris, correct?  The lateral veins seem to branch tangentially from the mid vein and into several splits, but I'm not sure I can tell whether the leaf has a heart-shaped base.

 

[Fossildude19]

4 hours ago, Sagebrush Steve said:

Now here are a couple of photos of another fern, this one inherited from my mother so I know next to nothing about where it came from except most likely in the USA.  From what I can tell, this should be a Neuropteris, correct?  The lateral veins seem to branch tangentially from the mid vein and into several splits, but I'm not sure I can tell whether the leaf has a heart-shaped base.

 

Steve, 

I would say that you are correct. Looks like a Neuropteris to me. 

[fossilized6s]

Yes, the second fern does indeed look like a Neuropteris. The first i'm not so sure about. 

[Sagebrush Steve]

22 hours ago, piranha said:

Knob Noster is the Pennsylvanian formation in Johnson County, Missouri.  LINK

 

 

 

 

And here is an interesting paper I just found that summarizes the various localities around the world containing Carboniferous plants within sideritic nodules: http://bomax.botany.pl/pubs/data/article_pdf?id=3601.  Looks like Knob Noster is a fairly recent discovery.  Maybe that's why so many sellers list their items from Johnson County, Missouri as being from the Braidwood formation rather than Knob Noster.  The geology was still being worked out when they were collected and the specimens looked similar to those from Braidwood in Mazon Creek?  Just speculation on my part.

[FossilDAWG]

Can you check that link?  It seems to be dead.

 

Thanks,

Don

[Sagebrush Steve]

14 minutes ago, FossilDAWG said:

Can you check that link?  It seems to be dead.

 

Thanks,

Don

That link is now broken.  There are other links that still work like the one here.  But since that might also go away, here is the actual paper:  

Ac522_s247-269.pdf

[FossilDAWG]

Thank you!

 

Don