Jump to content

MSirmon

Recommended Posts

This was found by a friend near Muskogee Oklahoma. The area is Pennsylvanian. Any help on identification would be appreciated.

186B4500-7C88-4B33-971A-501E21BDB6A2.jpeg

Link to comment
Share on other sites

35 minutes ago, Randyw said:

Neuropteris?

Looks like it to me.

 

 

Link to comment
Share on other sites

Most likely Macroneuropteris Scheuchzeri -- I can see "hairs" on the surface that lie obliquely to the venation which is the common identifier for that specie, although it is not as distally tapered as MC specimens. 

 

This is SO MUCH like Mazon Creek iron siderite concretions that it is scary. Was it found as a complete nodule concretion or is it only the half shown? Is that type of nodule concretion common to the area?

 

 

Edited by Mark Kmiecik
learned the difference between a nodule and a concretion
  • I found this Informative 2

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

Link to comment
Share on other sites

Yep, that is one awesome plant fossil and agree with Mark! I've got several examples from other places including MCreek as Mark mentioned and it is one of my favorites. 

 

Here's a reference that Jack was involved with about--- possibly the same formation a little east of where you are describing...

The Okmulgee, Oklahoma fossil flora, a Mazon Creek equivalent: Spatial conservatism in the composition of Middle Pennsylvanian wetland vegetation over 1100 km

Moore, Lillien C.; Wittry, Jack; DiMichele, William A.
Date: 2014
Review of Palaeobotany and Palynology 200 (2013) 24–52

This flora is exactly correlative with the Mazon Creek flora. 

You can download the paper here:

https://repository.si.edu/handle/10088/21841

There are some great photos within...Plate VI. Pteridosperms—Macroneuropteris scheuchzeri.

Regards, Chris 

  • I found this Informative 2
Link to comment
Share on other sites

@Plantguy Thanks for the article. I was not aware of that site.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

Link to comment
Share on other sites

15 hours ago, Mark Kmiecik said:

@Plantguy Thanks for the article. I was not aware of that site.

 

13 hours ago, jdp said:

Oh neat, I was not aware of this site. Any animal records from here?

Sounds like they were after the coal back in the 40's and exposed these finds/beds....that was quite awhile ago but like Mazon Creek not sure what is left these days in the spoils or are the areas private and even accessible. Might have some clues to those critters/fauna in the references and those listed at the back of article-.

 

The article does mention...

 

Fossiliferous shales above the Croweburg–Henryetta Coal inOklahoma
were deposited in a setting similar to that of the Francis Creek Shale.
Wright (1965), Smith (1970) and Baird et al. (1985a) illustrate clastic
wedges above the coal in Oklahoma similar to those in Illinois, though
such sediments would have been derived from a different clastic source
area than those of the Francis Creek Shale (Houseknecht, 1983). Similar
animal fossils to those of Mazon Creek also are found above the
Croweburg–Henryetta in what are interpreted as brackish-to-fresh
water deposits, positioned, as in the Francis Creek Shale of Illinois, seaward
of the plant-bearing shales
.
The Francis Creek Shale and its equivalents
must have been deposited very rapidly and prior to widespread
flooding of the craton as evidenced by extensive, overlying marine
rocks.

 

Regards, Chris 

 

Link to comment
Share on other sites

Yeah, I followed those references. The fauna that Baird et al. report is pretty limited. Mostly shrimp and, apparently, a lot of Paleoxyris. I was just curious if there was some degree of unpublished knowledge by local collectors about the site.

  • I found this Informative 1
Link to comment
Share on other sites

 

1 hour ago, jdp said:

Yeah, I followed those references. The fauna that Baird et al. report is pretty limited. Mostly shrimp and, apparently, a lot of Paleoxyris. I was just curious if there was some degree of unpublished knowledge by local collectors about the site.

@jdp

I wonder if Jack recalls anything about the fauna there? 

 

Hey Jack, @fiddlehead we were discussing one of your awesome articles about the flora out in Oklahoma here...wanted to flag you on this item and ask if you about being aware of any unique and or common associated fauna from that locale. Thanks!

Regards, Chris 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...