Jump to content
Recker

Ordovician Brachiopod hashplate id?

Recommended Posts

Recker

I found this conglomerate, or hashplate of Brachiopods on the Whitewater River, Southeast Indiana and wonder what they are.  It seems like a cross cut of the ancient Ordovician sea bed because all the fossils are on top of rock that seems layered.  I've been slowly working on my first prep, from left to right using sewing machine needles, I don't want to mess it up!

50428369_393196367919109_8123507457256325120_n.jpg

50492075_325010744779150_3847075904371032064_n.jpg

50594507_471751440022743_3606591416928567296_n.jpg

50815316_2188999811152935_1316242046968659968_n.jpg

Share this post


Link to post
Share on other sites
Recker
4 minutes ago, Innocentx said:

It's going to take me the rest of my life to clean it up!!  The shells are so small, but a really cool purple color.  Little by little!

Share this post


Link to post
Share on other sites
Innocentx

Good luck, it's worthy. :dinothumb:

Share this post


Link to post
Share on other sites
Wrangellian
1 hour ago, Recker said:

It's going to take me the rest of my life to clean it up!!  The shells are so small, but a really cool purple color.  Little by little!

The rest of your life?? What are you using to clean it, a feather? ^_^

I like it, it's almost done the way it is!

Share this post


Link to post
Share on other sites
Recker

LOL!!  I've been using a sewing machine needle and a 1/4" spade drill bit by hand , believe it or not, that spade bit works great for doing the rough work!

 

Share this post


Link to post
Share on other sites
Wrangellian

Whatever works.

I did try a bit of this kind of prepping myself, with a pin, on a fossil leaf in soft matrix, and I kept poking the leaf when it broke thru the covering matrix, so I'd be reluctant to try that method. Maybe it just takes practice, but I think a machine (airscribe) would have been easier to control, if only I could afford one..

Share this post


Link to post
Share on other sites
Plantguy
2 hours ago, Innocentx said:

Yep that looks like a very nice and interesting plate! I like hash plates. 

 

I've got a plate that I bought awhile back that is similar that was apparently prepped with an air abrader of some type. I was going to say it looks similar to my Dalmanella specimen. Would you happen to know if they eliminated the Dalmanella meeki designation completely or is it still valid? Mine is labeled as being from the Waynesville Formation, Ordovician, St. Leon, Indiana. Maybe I should go do some research and create a separate thread in the ID section as I dont know if I ever verified the original ID ...the plate has a number of examples and it could be there are multiple things there...

 

Regards, Chris 

Share this post


Link to post
Share on other sites
Recker
9 minutes ago, Plantguy said:

Yep that looks like a very nice and interesting plate! I like hash plates. 

 

I've got a plate that I bought awhile back that is similar that was apparently prepped with an air abrader of some type. I was going to say it looks similar to my Dalmanella specimen. Would you happen to know if they eliminated the Dalmanella meeki designation completely or is it still valid? Mine is labeled as being from the Waynesville Formation, Ordovician, St. Leon, Indiana. Maybe I should go do some research and create a separate thread in the ID section as I dont know if I ever verified the original ID ...the plate has a number of examples and it could be there are multiple things there...

 

Regards, Chris 

I can't verify the nomenclature, still looking for ID on it but I live very close to St. Leon Indiana.

Share this post


Link to post
Share on other sites
Innocentx
24 minutes ago, Recker said:

I live very close to St. Leon Indiana

Then you may have the Dalmanella meeki, as Chris has. They all look quite similar to me as I don't have an example of my own to study for variations.

I feel I'm quite lucky to get mine down to genus.

Share this post


Link to post
Share on other sites
Plantguy
42 minutes ago, Recker said:

I can't verify the nomenclature, still looking for ID on it but I live very close to St. Leon Indiana.

 

12 minutes ago, Innocentx said:

Then you may have the Dalmanella meeki, as Chris has. They all look quite similar to me as I don't have an example of my own to study for variations.

I feel I'm quite lucky to get mine down to genus.

I'm not a brach person so hoping one of the others will chime in....I was just going by my recollection...

 

Regards, Chris 

Share this post


Link to post
Share on other sites
Innocentx
2 minutes ago, Plantguy said:

hoping one of the others will chime in

Perhaps @Tidgy's Dad Adam knows these.

Share this post


Link to post
Share on other sites
Plantguy
Just now, Innocentx said:

Perhaps @Tidgy's Dad Adam knows these.

Good idea. Herb may know as well. @Herb

Regards, Chris 

Share this post


Link to post
Share on other sites
Plantguy
7 hours ago, Herb said:

could be:

Glyptorthis

Cincinnetina

or

Plaesiomys

 

hard to tell.

Thanks Herb for looking. 

Regards, Chris 

Share this post


Link to post
Share on other sites
Recker

Thank you all so much for your help!  Chris I'd love to see the shell plate you have from St. Leon, it's pretty cool you have one from my neck of the woods.  I've been carefully trying to clean this up, here's the progress so far.

 

 

50321130_298665857663128_9032203652395171840_n.jpg

50627144_526845901168244_1054317224518483968_n.jpg

50878311_1816802328448706_6517164713317498880_n.jpg

Share this post


Link to post
Share on other sites
dalmayshun

glad to see I am not the lone "needle" cleaner out there. I know my own hash plates from near Green Bay would clean up great with an air or needle scribe...but I am reluctant to invest in something I know so little about...and they do seem complicated for a person such as myself with a mechanical ability that stretches itself by using a needle. (I have heard the powder has to be dry, certain pressure, etc. and then quality of machinery is an issue for what I could afford. ) If anyone knows of a process inbetween a hand held needle, and a power scribe, that would be nice. I do have a dremel., but I find they are way too instrusive...i end up taking away part of the fossil when I experiment with broken or chipped fossils. I guess I need a hands on class to go to. Perhaps a local fossil club would be my best bet, if I can snag someone who would be willing to teach me. 

   BTW, beautiful hashplate. and elegant brachs/ 

 

Share this post


Link to post
Share on other sites
Recker
3 minutes ago, dalmayshun said:

glad to see I am not the lone "needle" cleaner out there. I know my own hash plates from near Green Bay would clean up great with an air or needle scribe...but I am reluctant to invest in something I know so little about...and they do seem complicated for a person such as myself with a mechanical ability that stretches itself by using a needle. (I have heard the powder has to be dry, certain pressure, etc. and then quality of machinery is an issue for what I could afford. ) If anyone knows of a process inbetween a hand held needle, and a power scribe, that would be nice. I do have a dremel., but I find they are way too instrusive...i end up taking away part of the fossil when I experiment with broken or chipped fossils. I guess I need a hands on class to go to. Perhaps a local fossil club would be my best bet, if I can snag someone who would be willing to teach me. 

   BTW, beautiful hashplate. and elegant brachs/ 

 

Needle cleaners unite as we peck away on our fossils!!  LOL  I hear ya, like you I'm afraid of messing them up.  Someone on the forum, can't remember who, suggested a Dremel Engraving tool so I bought that, was only like $20.  Need practice!  Thank you for the compliment, I really like the plate and the color of the brachs.  I'll peck away some more.

Share this post


Link to post
Share on other sites
Herb
5 hours ago, Peat Burns said:

Dalmanella meeki is now Cincinnetina meeki (which is what I think the OP has).

there are still 2 species of Dalmanella, but they are not found in the Cincinnatian

Share this post


Link to post
Share on other sites
Recker

Wow!!! That is absolutely beautiful!!!!  Such a variety, I can't imagine the work it took to prep that.  If you ever find your way up to Indiana, we'll go fossil hunting together.  

Share this post


Link to post
Share on other sites
Peat Burns
2 hours ago, Plantguy said:

Looks cool. take your time...thats one of the lessons I learned aside from wearing safety glasses and using magnification and not doing prepwork on the kitchen table. 

 

So here's the plate I have. I did live in Louisville for a time and did some collecting around there but this was purely an impulse buy. I cant take credit for finding it, nor prepping it--someone else gets all that credit. Just thought it was cool with the brachs and other small bits of trilobites, bryozoans and crinoids and I was using it and other examples to teach scouts about geology/fossils. 

Waynesville Formation, Ordovician, St. Leon, Indiana

5c44fb5e19342_BrachiopodIndiana20190119_220409.thumb.jpg.6e148679f9d8ae55350811a54ce86871.jpg

@Herb @Peat Burns What do you all think...Mostly Cincinnetina meeki ? and possibly others? 

 

Regards, Chris 

I think some of the more square-shaped ones with the relatively long hinge-line are Plaesiomys subquadratus. Nice plate.:)

Share this post


Link to post
Share on other sites
Plantguy
2 hours ago, Recker said:

Wow!!! That is absolutely beautiful!!!!  Such a variety, I can't imagine the work it took to prep that.  If you ever find your way up to Indiana, we'll go fossil hunting together.  

 

46 minutes ago, Peat Burns said:

I think some of the more square-shaped ones with the relatively long hinge-line are Plaesiomys subquadratus. Nice plate.:)

 

Thankyou both for the comments and Id info. I do miss running around that part of the country looking for Paleozoic critters and who knows we may get up there again someday. I imagine its stinking cold up there right now...which I used to enjoy. The Florida winters down here make us spoiled and not liking that anymore. Hang in there!!

 

Regards, Chris 

Share this post


Link to post
Share on other sites
Recker
4 minutes ago, Plantguy said:

 

 

Thankyou both for the comments and Id info. I do miss running around that part of the country looking for Paleozoic critters and who knows we may get up there again someday. I imagine its stinking cold up there right now...which I used to enjoy. The Florida winters down here make us spoiled and not liking that anymore. Hang in there!!

 

Regards, Chris 

It is cold, 8 now going to warm up to 16 tomorrow!

 

Share this post


Link to post
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


  • Recently Browsing   0 members

    No registered users viewing this page.

×