ynot Posted July 2, 2018 Share Posted July 2, 2018 4 hours ago, Nimravis said: I am glad that you like and have thought about stopping it, but I decided to continue to show members what it is like to collect Mazon Creek concretions and what you might find. Just to let You know.... Even though I do not comment on all the additions, I greatly appreciate the show! 1 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Nimravis Posted July 2, 2018 Author Share Posted July 2, 2018 19 minutes ago, ynot said: Just to let You know.... Even though I do not comment on all the additions, I greatly appreciate the show! Thanks Tony. I was just in the basement looking at what bucket I want to start tomorrow and it gets overwhelming, the amount of concretions I had collected. This week was a Stay-cation so it allowed me to put in several hours a day cracking things open. I am putting off to the side some “Perfect Shaped Concretions “, the ones collectors always wanted. I will take and try to freeze / thaw them over the winter to see if something pops open. Check back tomorrow as I plan to try and spend a little time opening a hundred or so small ones that I saw- sometimes they hold some nice things. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted July 2, 2018 Share Posted July 2, 2018 23 hours ago, Nimravis said: Today was another hot day and I spent several hours going through the rest of the concretions that I collected from the Braceville Shaft Mine (Essex Fauna) during April / May 2000. I will start with my best find of the day and why Mazon Creek fossils are so great. Now this fossil is the most common polychaete worm, but being able to have a soft bodied animal is truly spectacular. Here is Didontogaster cordylina or as most collectors referred to it a "Tummy Tooth Worm". This concretion opened perfectly with one strike of my hammer, and after being cleaned up with some water, you can see its jaws (arrow) in the gut region. Spectacular! That's exactly the sort of specimen that must make all that seemingly never ending boshing worthwhile. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
stats Posted July 3, 2018 Share Posted July 3, 2018 On 7/1/2018 at 6:40 PM, Nimravis said: Today was another hot day and I spent several hours going through the rest of the concretions that I collected from the Braceville Shaft Mine (Essex Fauna) during April / May 2000. I will start with my best find of the day and why Mazon Creek fossils are so great. Now this fossil is the most common polychaete worm, but being able to have a soft bodied animal is truly spectacular. Here is Didontogaster cordylina or as most collectors referred to it a "Tummy Tooth Worm". This concretion opened perfectly with one strike of my hammer, and after being cleaned up with some water, you can see its jaws (arrow) in the gut region. Nice worm! Didonogaster cordylina, its name means 2 tooth stomach. Cheers, Rich 1 Link to comment Share on other sites More sharing options...
stats Posted July 3, 2018 Share Posted July 3, 2018 On 7/1/2018 at 6:54 PM, Nimravis said: Mariopteris nervosa This might be an orbicular pinnule from a Macroneuropteris. Cheers, Rich On 7/1/2018 at 6:54 PM, Nimravis said: Link to comment Share on other sites More sharing options...
Nimravis Posted July 3, 2018 Author Share Posted July 3, 2018 19 minutes ago, stats said: This might be an orbicular pinnule from a Macroneuropteris. You could be correct- it just looked like something that I opened a few days ago and was identified as that by Jack (Fiddlehead). Link to comment Share on other sites More sharing options...
Nimravis Posted July 3, 2018 Author Share Posted July 3, 2018 Today I spent about 1 1/2 hours going through some concretions today. Before I show the couple things that I found I will touch on a couple other things. Here is the small bucket that I was going through today- they came from the Braceville Shaft Mine (Essex Biota). I mentioned in an earlier post that I was going to put aside some of the concretions that had the shape that all collectors look for. Here is an example of concretions that I removed from this bucket and try to Freeze / Thaw over the winter. The thing that gets really disappointing with Mazon Creek concretions is when you are striking it with the hammer and hear the nice "crack" sound, knowing that it split perfectly, but then you open it up and it is void of anything. Below are some examples of this: As you can see here, they split perfectly down the center- but is empty. One of the things that I and some other collectors would do is collect pieces of pyrite that I believe were deposited from the retreating glaciers. As a matter of fact, I use granite glacial erratic's to place my concretions on, as a base, when I am splitting them. Below is a piece of pyrite that was in the bucket (dirty) and I thought that it was a concretion until I hit it. In regards to pyrite, it is also found in a lot of the concretions that you find, at least that is what I think it is. Here is a concretion that has a some in it: This next type of concretion is often found, but you do not know it until you break the "crust" off. When I see these types, I do not hold my breath that the concretion will have anything inside, but sometimes I do find stuff. A whack of the hammer will soon determine what is inside. This concretion did not have anything inside: Here are a couple finds from today, a couple things that I am not sure of. Coprolite A really crappy concretion had something similar inside. Myalinella Bivalves Possible Shrimp- Poorly preserved polychaete worm. Essexella asheraeJellyfish At first this looked like a piece of coprolite or a fish scale or bivalve, but now I think it is nothing. This contents of this next concretion looked similar to Mazonova helmichnus (Egg cases), but I am having doubts and think it is just color differentiation. I am also including a pic of actual Mazonova helmichnus from my collection. Neuropteris 7 Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 Today I was only able to crack concretions for 1 hour, here is the small pile that I was working on today, they all came from the Braceville Shaft Mine (Essex Biota). I did not go through all of them, but here are a couple of my finds. Pecopteris Myalinella Bivalve @RCFossils what do you think about the ID's below? Mazonomya ?? - I usually only find them in the open "Death Position", and it really does not look like one. I was wondering if this could be a Mazonomya or possibly Sedwickia sp. due to the size. Last but not least this piece looks like "Monurans" that I found before and was wondering if you think it is Dasyleptus?? 3 Link to comment Share on other sites More sharing options...
stats Posted July 4, 2018 Share Posted July 4, 2018 On 7/2/2018 at 7:48 PM, Nimravis said: You could be correct- it just looked like something that I opened a few days ago and was identified as that by Jack (Fiddlehead). You might be correct... just throwing out an alternative. The various species can be tough to identify at times. Of course, Jack is the best when it comes to identification. I would always defer to him! I'm enjoying your show! It's very interesting. I only use freeze/thaw and it takes a long time! Cheers, Rich Link to comment Share on other sites More sharing options...
Innocentx Posted July 4, 2018 Share Posted July 4, 2018 It sure looks like dasyleptus. Nieece. 1 "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
stats Posted July 4, 2018 Share Posted July 4, 2018 9 minutes ago, Nimravis said: Last but not least this piece looks like "Monurans" that I found before and was wondering if you think it is Dasyleptus?? Possibly! I have a Dasyleptus. Mine is smaller and you can see the pointed tail. Can you make out the legs or tail? The segmentation looks right. It could be a syncarid shrimp, too. Cheers, Rich Link to comment Share on other sites More sharing options...
RCFossils Posted July 4, 2018 Share Posted July 4, 2018 I would lean towards Dasyleptus as well 1 Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 2 hours ago, stats said: Possibly! I have a Dasyleptus. Mine is smaller and you can see the pointed tail. Can you make out the legs or tail? The segmentation looks right. It could be a syncarid shrimp, too. Cheers, Rich No I can not, but I’d does look similar to ther ones that I have. 1 Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 After I got home from work today, I spent a little time going thru more concretions from the Braceville Shaft Mine, I have been finding a couple nice things out of these concretions from 1999. It is a toss up of what was my favorite find from today, I had 2. I will start off with a very stunning Cyclus americanus. My next favorite is a very nice Palaeoxyris. 5 Link to comment Share on other sites More sharing options...
Bobby Rico Posted July 4, 2018 Share Posted July 4, 2018 Cyclus americanus is stunning Link to comment Share on other sites More sharing options...
GeschWhat Posted July 4, 2018 Share Posted July 4, 2018 Both are amazing, but I'm partial to the egg case. Beautiful! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 I also found more Myalinella and Mazonomya Bivalves. Portions of Polychaete Worms, none that broke correctly. Essexella asherae Jellyfish Coprolite And a couple things that I am not sure of, and will have to look into. Here is the only pieces of flora that I found today- but I wanted to show. 1 Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 Lastly, today as with almost everyday, I come across concretions with pyrite or crystal inclusions. Here are a couple of examples and you can see why some people think that they found a fossil in their concretion. All Pyrite- Crystal center- 3 Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 9 minutes ago, Bobby Rico said: Cyclus americanus is stunning Thanks Bobby, I really like that one. Link to comment Share on other sites More sharing options...
Nimravis Posted July 4, 2018 Author Share Posted July 4, 2018 8 minutes ago, GeschWhat said: Both are amazing, but I'm partial to the egg case. Beautiful! Thanks Lori, the coprolite pieces are not too bad- LOL. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 5, 2018 Share Posted July 5, 2018 Egg case is really cool! Other stuff is cool as well. Thanks for sharing all this! 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
ynot Posted July 5, 2018 Share Posted July 5, 2018 1 hour ago, Nimravis said: Lastly, today as with almost everyday, I come across concretions with pyrite or crystal inclusions. Here are a couple of examples and you can see why some people think that they found a fossil in their concretion. Crystal center- On the first 2, I do not see why You say they are not fossils. The first one is clearly a pig scratching its behind on a rock, and the other is clearly a swan!! I wouldn't call the other piece "crystal". (does not have the shape.) It looks a lot like opalite, which is not even considered a mineral. As for the Cyclus americanus and the Palaeoxyris, WOW!!!! Those are stunning! Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Nimravis Posted July 5, 2018 Author Share Posted July 5, 2018 1 minute ago, ynot said: On the first 2, I do not see why You say they are not fossils. The first one is clearly a pig scratching its behind on a rock, and the other is clearly a swan!! I wouldn't call the other piece "crystal". (does not have the shape.) It looks a lot like opalite, which is not even considered a mineral. As for the Cyclus americanus and the Palaeoxyris, WOW!!!! Those are stunning! Now that is funny. You would know better than me if it is a crystal or not, they just look like it to me. Thanks Tony Link to comment Share on other sites More sharing options...
ynot Posted July 5, 2018 Share Posted July 5, 2018 1 minute ago, Nimravis said: Now that is funny. You would know better than me if it is a crystal or not, they just look like it to me. Thanks Tony Thanks. A crystal has a defined geometric shape. Crystaline is "crystal(s)" that had no room to form a shape. Things like opal and obsidian are considered mineraloids, and put in a separate clade. 2 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Nimravis Posted July 5, 2018 Author Share Posted July 5, 2018 Today I only had enough time to open about 60 concretions from the Braceville Shaft Mine. Here are the finds from today- Essexella asherae Coprolite Worm (?) Bivalve with Pyrite Bivalve A couple small concretions that have no fossil but do have an inclusion of pyrite. Many concretions shatter once you hit them with a hammer- this no fossils are found. Hopefully I will had better luck tomorrow. 2 Link to comment Share on other sites More sharing options...
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