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Runner64

I'll update this thread with my Mazon Collection over the next few weeks.  With some good weather out yesterday, I managed to get my first fossil hunt in for the season and will post a report in this topic.  I will be moving this upcoming summer which will put me even further from Mazon Creek so I have purchased a few pieces to fill in the genus/species I haven't found yet and will mention if I purchased a fossil.  I still hold out hope to find some of these pieces I purchased eventually but will realistically be difficult if I only can make 1 trip a year.

 

Fauna

 

Tullimonstrum gregarium

Tullimonstrum.jpeg.f79e28e35109a513438e2cb9e4caac73.jpeg

A weathered eye-bar I found on my first trip several years back.  There is an eye spot evident under the right light.  Still the only piece I have found at this point.

 

Euphoberia armigera (Purchased)

Euphoberia.jpeg.8e7f37a5f1272ac614d54823491b17aa.jpeg

 

Acanthodian indet. (Purchased)

Acanthodes.jpeg.11fee4d200668e849d140b57905437cd.jpeg

Note: Under magnification the scales are present.

 

Cyclus americanus

Cyclus.jpeg.7294e9db1741897bded3a50216271421.jpeg

 

What's a Mazon Creek thread without some Essexella asherae?  I still like finding these guys despite the vast amount I have found.  Here are a few of my favorites:

464195509_Essexela3.jpeg.9206f8cf7dbc7b088a90f569bfca4d8b.jpeg

1700840582_Essexela2.jpeg.f45987becfb8157446044995024fa8c6.jpeg

Note: My largest piece, this is about 6-7 inches in diameter.

95535634_Essexela1.jpeg.c95ce344a8fc946ad21a9bb0529f0212.jpeg

 

A couple shrimp pieces.  I believe Belotelson magister (Traded for the first one)

812843738_Shrimpmolt.jpeg.4a8798e87777833da83fc0df1bde878a.jpegShrimp.jpeg.9a6dff17102b43579970390ecdba9817.jpeg

 

Here is a cool insect wing from the order Palaeodictyoptera. (Purchased)

967334798_Insectwing.jpeg.74cf1bd4285ff980098fbb3c64a8e22e.jpeg

 

Now I believe this piece may be a Dasyleptus sp. and if it isn't one, I would love to be corrected!

Dasyleptus.jpeg.b3ac64c1aa3a2e5195b41f6bf725c3de.jpeg

 

Europops danae (Purchased)

540983327_Horseshoecrab.jpeg.b3a9e87b3a83c13f64ed1b2f5b67bb16.jpeg

 

Mazonomya mazonensis

Bivalve.jpeg.899ad4cb99265948ea9b01773aff068d.jpeg

 

I'll add to this thread with additional fauna and flora later and will continue to add as I go through freeze-thaw cycles.

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deutscheben

That's a nice assortment and you have a good sampling of some of the less common animal groups! Thanks for sharing. 

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Runner64
1 hour ago, deutscheben said:

That's a nice assortment and you have a good sampling of some of the less common animal groups! Thanks for sharing. 

Thanks!  I hope to get out next weekend as well...looks like it'll be 50's-60's F and sunny which would be beautiful.

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connorp
1 hour ago, Runner64 said:

Thanks!  I hope to get out next weekend as well...looks like it'll be 50's-60's F and sunny which would be beautiful.

Anything beats the freak snowstorm yesterday...

 

Nice collection! That's a really nice Euphoberia example.

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Runner64
37 minutes ago, connorp said:

Anything beats the freak snowstorm yesterday...

 

Nice collection! That's a really nice Euphoberia example.

Thanks! Yeah the snow yesterday was weird. I was planning to head back down to Mazonia yesterday as well but I had a drive back to Des Moines afterward so driving in the snow for 5 hours didn’t seem ideal.

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Runner64
Posted (edited)

Back out at Mazon today 3-19-21.

 

I got pretty lucky today and filled a 2.5 gallon bucket. Here’s some nodules in-situ:

4556ECF3-C054-4AF1-8D49-A350D270EEDB.thumb.jpeg.520ce1b0eefed2980af00e62489f9ef5.jpeg8F830940-0ED0-426E-AC6B-89105CEEBB51.thumb.jpeg.fd0c275d2ee2cd98a34de3298b95340e.jpeg49D10DD3-AE09-479F-A66B-B1623B38DAB9.thumb.jpeg.505004eea872bbce26cfb5239f5033c5.jpegCB8F7DC6-660D-4EC9-9E2A-DCBFA7E7FF13.thumb.jpeg.143eccc0444b4009393c8c3464191ddf.jpeg8D30BAB4-BA96-4BD5-8A5D-4A18797553A1.thumb.jpeg.43f8b2f572fc8e247f14a661709654d1.jpeg

 

Now this last one is very very intriguing to me as it has a very strange shape. I’m curious if this could be a tully monster?

57156FA4-EE91-4C42-86B6-5B7B29E9CF96.thumb.jpeg.b06cf046a8eeb69883b2249f01ff2ee2.jpeg

Broke on the drive home unfortunately but was able to look and see there is a fossil plane:

866789FF-0F5E-4610-A717-59B19A216C15.thumb.jpeg.3d519a776eb24f8cbfc86d19b8bf0458.jpeg

 

Edited by Runner64
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Runner64

Went on a fossil hunt at Mazon again last Sunday.


Here is a nice jellyfish I found, a bit dirty though will post pictures once clean because it has good detail:

D7C5E1A4-CF79-4665-893A-6E3B6E242528.thumb.jpeg.4f723adaa45b72bcf4cbe6d1d6555c77.jpeg
 

A large concretion:

D7D6AE27-4A9F-4A63-9FC7-A6A8B79D493B.thumb.jpeg.cdbdad1c078fdac056ac63d0e3350f61.jpeg

F14B37A3-789E-4034-891C-A40853B0769D.thumb.jpeg.6913eb94b33f013435d9d89b8078093f.jpeg

 

Haul, all jellyfish concretions picked out:

07F1D789-9F14-4A96-AFED-BA6B117E2B7A.thumb.jpeg.f2e10db4c7ae35b93d0219a4f6022180.jpegE427EBBC-F164-45B4-9752-39E4A70D70B9.thumb.jpeg.eaaba0f8699c1829c5a46e8064cf1ba4.jpeg 

ED5CF3E0-83C5-4181-A331-019D0BAFD3E3.jpeg

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Runner64

Esconites zeulus 

image6.thumb.jpeg.29af6736f2826414972be3baee9a23da.jpeg

 

Didontogaster cordylina

1845877979_image1(38).thumb.jpeg.fead14e01d63c9ea64add5dbca4293da.jpeg

 

Astreptoscolex anasillosus

1136896912_image0(62).thumb.jpeg.e188b185fcdd68c81497f791bc359fa7.jpeg

 

Mazopherusa prinosi

1797258614_image4(7).thumb.jpeg.f17454c37e60adeee25fe0228a6f4e2f.jpeg

 

Coprinoscolex ellogimus

423191976_image7(1).thumb.jpeg.7f8ca9cb511980cc6fd01a99aa559aea.jpeg

 

Fossundecima konecnyi

393096755_image3(9).thumb.jpeg.355d8bf9ae9a062bbd82e9f36b358f29.jpeg

 

Paucijaculum samamithion

1476345889_image2(25).thumb.jpeg.d266fb677102a72c0f9e52ba154813e9.jpeg

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deutscheben

That’s a really nice collection of worms! The way they are preserved within the concretions is interesting too, seems like there is lots of mineralization.

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Runner64
12 hours ago, deutscheben said:

That’s a really nice collection of worms! The way they are preserved within the concretions is interesting too, seems like there is lots of mineralization.

Thanks, I appreciate the kind words!  

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  • 2 weeks later...
Runner64

Going through the fossils I’ve found so far. More than enough Essexela.

438BBCF7-3AF5-4083-B276-92C20B04F281.thumb.jpeg.1b66b371a9d0e4e4288c1df57ffb53ca.jpeg7F2F9882-84AB-4A62-A2CD-373D20305264.thumb.jpeg.b3a0151e0a7aa772ad7521de7bf04dcc.jpegE4BADEB2-013F-4859-B9D8-E4DC6CDEA2B7.thumb.jpeg.aa0c8de8da61778fedbd91aa10b49114.jpegEDB6D440-9EB2-4196-B36B-381EF37F71EC.thumb.jpeg.910354aa80ffe0d4076bdd566a32057f.jpegE1FAFC97-D096-4596-BD89-3C896815F269.thumb.jpeg.04e2d5ff27adae2aa130f384788fb760.jpeg

 

I also have this fauna piece but is really worn. Might be a worm, but appears segmented and when wet, appears to have bristles around it. Thoughts?

22E7DA0A-BCFC-4301-B705-ECEB0749EE26.thumb.jpeg.b321b46324656d4ebf1492211dab0778.jpeg

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Bob Saunders

all are very nice. I see that there is a fossil show this year at the Illinois State Fair Grounds. I'm looking forward to attending. I found this miss identified fern at a antique mall this week and much dirt came off in the ultrasonic cleaner. wrong species from Mazon Creek. Neuropteris Fossil Fern

20210402_142636.jpg

20210402_142718 C.jpg

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Runner64
2 hours ago, Bob Saunders said:

all are very nice. I see that there is a fossil show this year at the Illinois State Fair Grounds. I'm looking forward to attending. I found this miss identified fern at a antique mall this week and much dirt came off in the ultrasonic cleaner. wrong species from Mazon Creek. Neuropteris Fossil Fern

20210402_142636.jpg

20210402_142718 C.jpg

Beautiful fern, it cleaned up well.  The state fair show sounds very interesting.  I won't be able to make it unfortunately, but take some photos to share!

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Bob Saunders

The Illinois show is October 22-23 and expected to be a go. 

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Runner64
Posted (edited)
On 4/3/2021 at 8:54 AM, Runner64 said:

 

22E7DA0A-BCFC-4301-B705-ECEB0749EE26.thumb.jpeg.b321b46324656d4ebf1492211dab0778.jpeg

Soaked this piece in vinegar:

D03689BB-4592-46FB-B86B-80CBEB45BFFA.thumb.jpeg.3e3b0fbd088ba5a9c62e19005fb798a5.jpeg

 

I believe this may be a rough example of Achistrum, sea cucumber.

 

Also went 2/2 on concretions containing fossils tonight:

Another Essexla:

6207FB38-C298-44D5-A386-94937BABF38B.thumb.jpeg.d7edbc570b8813eff94f362bdc9bff63.jpeg
 

Coprinoscolex or Achistrum. I have difficulties telling apart:

FB408726-BA58-4F89-A335-4826209D0550.thumb.jpeg.17a50a2ea563bef58f3c5df201adbb03.jpeg

Edited by Runner64
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Runner64
On 3/19/2021 at 3:04 PM, Runner64 said:

 

 

Now this last one is very very intriguing to me as it has a very strange shape. I’m curious if this could be a tully monster?

57156FA4-EE91-4C42-86B6-5B7B29E9CF96.thumb.jpeg.b06cf046a8eeb69883b2249f01ff2ee2.jpeg

Broke on the drive home unfortunately but was able to look and see there is a fossil plane:

866789FF-0F5E-4610-A717-59B19A216C15.thumb.jpeg.3d519a776eb24f8cbfc86d19b8bf0458.jpeg

 

Had the front end pop open on this one couple days ago. Not sure but the other half of this one is disintegrating which is disappointing.

6261478E-6EAF-4A76-84FD-666619FEB1D7.thumb.jpeg.9d300944384978f89e96c521ee08fe96.jpeg

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Runner64

Nice weather to be outside. Went to the Mazonia wildlife area. I think the rain over the past few days really helped erode away at the slopes and exposed some nice pieces to take home.


2 fossils in the field I decided to take a quick picture of. A Neuropteris leaf and a calcified jellyfish. 
A449AE45-1E70-4D1D-A693-DD2A64E6A898.thumb.jpeg.ae879e71647a49fc60c329310f5c0507.jpeg

0759500F-B241-4B54-A085-282C12674015.thumb.jpeg.0779d9d8925166e1bb64f0b0b0d152c6.jpeg

 

Here is an unopened one in the field:

35831E5A-7521-43CA-A6D7-E83850880212.thumb.jpeg.b32078e12ce694a6a0b2aa15b33b83ab.jpeg

 

Weird piece, definetly something on it but what it is remains a mystery to me. Guessing some type of vegetation:

8AD19505-481E-4FE8-8C3B-99B2CF20F3F1.thumb.jpeg.4e081e93671be601d51c8fed56600894.jpeg

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