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Nimravis

Sometimes You Have To Whack It !!

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Nimravis
1 hour ago, Mark Kmiecik said:

Nice fish. I never found one, not even a blade.

Thanks- I have not found a Blade in forever.

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Mark Kmiecik
42 minutes ago, Nimravis said:

I would have to look for that one, but if I remember correctly, it is just the way the concretion is.

I have some that have the "shelf" "pedestal" but the fossil is contained upon it. Seldom goes beyond the top of the shelf.

Edited by Mark Kmiecik
added strikethrough and replacement

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Mark Kmiecik
On 7/9/2018 at 9:19 PM, Tidgy's Dad said:

Perhaps they are UFOs. 

They are! Unidentified Fossilized Objects.

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Mark Kmiecik
On 7/13/2018 at 9:47 PM, Nimravis said:

Unknown- will have to look into this one.

 

IMG_7369.jpg.b4cf1ba33b7ecfe76f27a4ca993a27cd.jpg

Cyclus Americanus lateral view???

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Mark Kmiecik
On 7/18/2018 at 11:24 AM, Nimravis said:

Thanks for the nice comments and you are exactly right about instant gratification, it rarely happens in the field when collecting concretions.

 

I rarely opened any concretions in the field because if I found nothing, which most likely would have been the case, I had the 1 1/2 hour drive back to Chicago to think about that. So I decided to always wait until I arrived home to open some and then I just started hoarding them, knowing that the areas I collected from were vanishing due to developments or nature and lack of weathering.

You don't open Mazon Creek in the field for one very simple reason. In the time it takes you to crack it open and probably destroy it you could have found two more, or if you are with a group someone else picked them up instead of you. It's a waste of valuable search time; freeze/thaw will serve you better until you are EXTREMELY FAMILIAR with what concretions may have the really good stuff. I mean at least a couple of thousand. Ralph has the experience and 25,000 concretions to play with, and even so, each time he shows us something relatively rare I think about how much better it may have been if freeze/thawed. If you've read this all the way through you will know that he is saving concretions of specific shape, size, color and other factors to be freeze/thawed because they are the "high-percentage" ones.

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Mark Kmiecik
On 7/26/2018 at 8:34 AM, Nimravis said:

@RCFossils When I opened it yesterday I put it off to the side, because it seemed odd and I was thinking a larger than normal for me Asterophyllites. @Wrangellian mentioned “insect wing” but I am not seeing that. What do you think on this one?

 

052AA668-11D0-43A6-8FE1-6DFC17CD4DC1.thumb.jpeg.40cf3b9cd051a3a21751d2c2d7e8826b.jpeg

Cockroach??? 

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Nimravis
1 hour ago, Mark Kmiecik said:

Cyclus Americanus lateral view???

Possibly- 

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Nimravis
44 minutes ago, Mark Kmiecik said:

Cockroach??? 

Not a cockroach, I have 1 or 2 of them and this piece looks nothing like them. I am not positive on what insect it is, but was happy to find it and more happy that @Wrangellian noticed it. I just cracked it, took a quick pic and moved on.

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Mark Kmiecik

The Annularia is very nice. Only 15,000 or so to go now?

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Nimravis
1 minute ago, Mark Kmiecik said:

The Annularia is very nice. Only 15,000 or so to go now?

Well maybe around 10,000- but it is a start.

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Monica

That Annularia is indeed gorgeous, Ralph!  Congrats!

 

I hope AJ enjoyed the hunt, too :)

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Nimravis
13 hours ago, Monica said:

That Annularia is indeed gorgeous, Ralph!  Congrats!

 

I hope AJ enjoyed the hunt, too :)

Thanks Monica and he did, especially when he found a couple more sets of Lego Jurassic Park and a Lego Stars Wars book. Hope you guys had a good Easter.

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Tidgy's Dad

Yes, the freeze-thaw Annularia is a beauty and i rather like the Sedgwickia too. :)

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Sjfriend

Well, I have now spent a good part of 3 days reading this thread ;) whew, that's a lot of hammer blows to watch. Being in AK I'll more then likely never get out there so it has been great viewing your finds. Love the fish but my favs are the ferns types. Love the details.

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Mark Kmiecik
26 minutes ago, Sjfriend said:

Well, I have now spent a good part of 3 days reading this thread ;) whew, that's a lot of hammer blows to watch. Being in AK I'll more then likely never get out there so it has been great viewing your finds. Love the fish but my favs are the ferns types. Love the details.

Go to the "Member Collections" topic and find Mazon Creek Flora and Mazon Creek Fauna on the third page to see the really good stuff.

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Nimravis

After working on some other fossil related stuff, I figured that I would open a few concretions, heck they are not going to open themselves if I don’t get this process going again, plus I need to get more material for the September Braceville Shaft Mine Trip put on by ESCONI.

 

Nothing special was found today, but here is what I believe is a nice “Plain Worm”, I will have to clean it up a bit.

 

D5A18CB7-49A2-4013-A976-3A5686CE4017.jpeg.cc573e41519b960b5e180058b9e7b3ba.jpeg

 

Here are some others finds-

 

Pecopteris-

 

93912531-A164-4B20-B56B-E3C6AD84B0AA.jpeg.d11d283a87517937ba4f9c8fe45b3df3.jpeg113EB68C-7134-4394-858C-C83FF501CD54.jpeg.452dd04182efc2717bdf87cc222a18e7.jpeg

 

Neuropteris-

 

D921CDB1-A657-4608-B02A-84A345E2336F.jpeg.c5c6372313a30c01114f183371523133.jpegB7E5DCE2-E4D1-4107-927D-C2CA3649FAC1.jpeg.7b079e25eca3eb8836c0ad26205d70db.jpegC7385AC4-03E3-4023-BE28-0DF78A0AFFAC.jpeg.3ae5d3c16ec345ac7e1f17be143ecea8.jpeg

 

Bark and Sub-Surface Bark-

 

1B7352CD-6827-4935-9856-7ED55F2E48B7.jpeg.cfd61cd875017c15c9741eb3bc9e1332.jpeg898B858E-55DE-4853-8B2C-B4B025476425.jpeg.6446adf393656f5975168f14a894972a.jpegF0D708E1-BF38-4604-8BA9-FDF0616A2EF4.jpeg.86a9efcfbf39d40960eff66482a8088e.jpeg90E09F48-EEBA-465A-908F-53F8CF4611E2.jpeg.dbab7ccb28f8d0152cf66aba612698e5.jpeg6B66B17A-C2E3-4E0A-BED0-729D220AAE19.jpeg.56e75e66eb19e0c6a0f6d499cb413737.jpegBCF61413-A4FE-4B08-A39F-C83DFA2D511C.jpeg.e9e5d4c40da0778e678aa6d8e7dec4c7.jpeg

 

Annularia- needs to be cleaned up.

 

E94278EF-450C-47E8-88C1-2E2521F28EA2.jpeg.c19dee41f301e8f8dfffb205a598fda9.jpeg

 

Myalinella meeki-

 

4C7301F4-7342-4D37-9B8A-61C87C790AE9.jpeg.b16cd20f04755edb6a9e260d012de94d.jpegDB551011-92A7-43F8-ABDF-92261BE44DD5.jpeg.f895291e1d6c9059337b83373da6a083.jpeg9907754C-6D22-45A0-BFA8-3CE94141530B.jpeg.b64808373789a151729ce36fcd6fe319.jpeg9DC64949-58D5-4819-9345-5F75B9009069.jpeg.5c68b40607396f56ab869ed6956a1d59.jpeg

 

Ano of course there were countless ones that contained nothing, but I do hate it when perfect concretions split correctly and are void- here are a couple examples.

 

C2BCEEF9-0FDF-498A-92EC-5247D5100232.jpeg.88876cc3a78da02bd47f21d1dc7866da.jpegA1E9ABB1-4AB8-46EA-AE21-F131688FF26E.jpeg.e84644339760dba180b25bcb2d580416.jpeg

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Tidgy's Dad

I like the worm, the group of Myalinella and the last Neuropteris especially. :)

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Yoda
10 hours ago, Nimravis said:

 

Annularia- needs to be cleaned up.

 

What further work would you do to this?? 

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Nimravis
1 hour ago, Yoda said:

What further work would you do to this?? 

I will soak it in water and brush it lightly with a toothbrush, if that does not work, I will soak it in vinegar for a little and brush it.

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Nimravis
16 hours ago, Yoda said:

What further work would you do to this?? 

This is after a quick brushing with a toothbrush.

 

05A2111E-876B-4C44-8351-CEAE244D9087.thumb.jpeg.5dae87340539bd35c4fe7eb61c32f82b.jpeg

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Mark Kmiecik
On 5/20/2019 at 5:16 AM, Yoda said:

What further work would you do to this?? 

Be aware that the vinegar does attack the fossil as well. If you leave it in vinegar too long you can erase the fossil, literally.

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Nimravis
2 hours ago, Mark Kmiecik said:

Be aware that the vinegar does attack the fossil as well. If you leave it in vinegar too long you can erase the fossil, literally.

I understand that and have never had a problem using vinegar and only rarely will use it on fauna.

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Mark Kmiecik
55 minutes ago, Nimravis said:

I understand that and have never had a problem using vinegar and only rarely will use it on fauna.

Comment intended for others who are following this thread. Don't want anyone to think "Ok, I'll just soak it in vinegar to clean it up." and have their fossil disappear. I did that once in '91 on what would have been a fairly nice 7" complete Pecopteris pinna and still remember that heart-sinking feeling vivdly. Put it in a vinegar bath in the evening and forgot about it. In the morning there was a long bump and a long trough where the pinna had been. Once you try it a few times on throw-away specimens you develop a sense of how long you can soak it to remove/loosen the calcite, but it takes many tries to get a feel for it. I don't try to improve specimens any more. I figure whoever has them after I kick off can ruin their own.

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Nimravis
21 minutes ago, Mark Kmiecik said:

Comment intended for others who are following this thread. Don't want anyone to think "Ok, I'll just soak it in vinegar to clean it up." and have their fossil disappear. I did that once in '91 on what would have been a fairly nice 7" complete Pecopteris pinna and still remember that heart-sinking feeling vivdly. Put it in a vinegar bath in the evening and forgot about it. In the morning there was a long bump and a long trough where the pinna had been. Once you try it a few times on throw-away specimens you develop a sense of how long you can soak it to remove/loosen the calcite, but it takes many tries to get a feel for it. I don't try to improve specimens any more. I figure whoever has them after I kick off can ruin their own.

I figured you meant it for others and it is good advice not to leave it for a long time, and now I am like you, I leave them alone unless I can clean it with water. I have a lot of pieces that are a real mess and I leave them that way, same holds true with some that could use some prep, I don’t do that either. My mentor and others that lived in Wilmington and Braidwood use to put egg whites on all plant specimens to bring out detail. Note to self- Don’t lick old Mazon Creek flora pieces.

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