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4 hours ago, Herb said:

image.png.97967af9a705b77f996ad7e182dce5f3.png

 

Beautiful worm, Herb (unless you're a passing fish!) - thanks for sharing this image of a modern-day polychaete worm with similar mouthparts to my finds :dinothumb:

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3 hours ago, GeschWhat said:

Here it is with your jaws! 

scolecodont-Gif.gif

 

Awesome, Lori!  Thanks for this "action shot"! :dinothumb:

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5 hours ago, Herb said:

 

5 hours ago, Herb said:

 

5 hours ago, doushantuo said:

I'd urge everyone to read:

kielanscolecod1 (13).jpg


or:

 

 

 

Conodont Color Alteration an Index to Organic Metamorphism
By ANITA G. EPSTEIN, JACK B. EPSTEIN, and
LEONARD D. HARRIS 

(about 30 MB)

 

 US GEOLOGICAL SURVEY PROFESS I ONAL PAPER 995 

or:

 

 

 

 

 

 

 

scole2675dd64c1850e0c2873a9f429c7e769.jpg

epstcousafd6019ut_0173.jpg

directly above is from the Epstein/Harris paper:

CAI,Vitrinite reflectance,graptolite periderm and palynomorph maturation are all used to assess thermal maturity,which is of course an important parameter in hydrocarbon

exploration

 

 

 

 

Thanks for the documents, guys! :)

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6 hours ago, Herb said:

image.png.97967af9a705b77f996ad7e182dce5f3.png

Thanks Herb, this is the first time I see what worm jaws look like ! Impressive !

 

Coco

  • I found this Informative 1

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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2 hours ago, t-tree said:

Amazing finds

 

John

 

Thanks, John! :)

 

3 hours ago, Coco said:

Thanks Herb, this is the first time I see what worm jaws look like ! Impressive !

 

Coco

 

They are indeed impressive!!!

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Update...

 

While searching for information about scolecodonts on the internet, I came across an article dealing with Silurian scolecodonts in Ontario.  I noticed that the author of the paper (Mats Eriksson) has authored numerous articles about scolecodonts, so I looked into where he's currently working, and found out that he's based out of Lund University.  I then emailed him to show him my specimens to see if he could/would provide some insight, and he responded today!!!  Here's what he said about the two scolecodonts pictured in the photo at the start of this thread:

 

"Thanks for your message and those beautiful photographs! You most certainly have scolecodonts on your hands. These are quite typical of the Upper Ordovician of both the Cincinnati tri state area and parts of Canada. Most of what I see in your photos are the first maxillae of Ramphoprionidae, a common family in strata of this age of N. America...The two specimens in photo 1309 are probably also ramphoprionids; the left specimen is a right MI (slightly broken) in lateral (i.e., side) / sub-dorsal view either belonging also to Protarabellies, or possibly to genus Oenonites of the family Polychaetaspidae. The specimen to the right in the same photo is left MI probably belonging to genus Ramphoprion."

 

So the mystery is officially solved!  Hooray!  And thanks so much to scolecodont specialist Mats Eriksson for getting back to me re: my specimens - what a great guy!!! :)

 

PS - I'm now off to submit these two specimens for March's "Invertebrate Fossil of the Month"... 

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1 hour ago, Monica said:

Update...

 

While searching for information about scolecodonts on the internet, I came across an article dealing with Silurian scolecodonts in Ontario.  I noticed that the author of the paper (Mats Eriksson) has authored numerous articles about scolecodonts, so I looked into where he's currently working, and found out that he's based out of Lund University.  I then emailed him to show him my specimens to see if he could/would provide some insight, and he responded today!!!  Here's what he said about the two scolecodonts pictured in the photo at the start of this thread:

 

"Thanks for your message and those beautiful photographs! You most certainly have scolecodonts on your hands. These are quite typical of the Upper Ordovician of both the Cincinnati tri state area and parts of Canada. Most of what I see in your photos are the first maxillae of Ramphoprionidae, a common family in strata of this age of N. America...The two specimens in photo 1309 are probably also ramphoprionids; the left specimen is a right MI (slightly broken) in lateral (i.e., side) / sub-dorsal view either belonging also to Protarabellies, or possibly to genus Oenonites of the family Polychaetaspidae. The specimen to the right in the same photo is left MI probably belonging to genus Ramphoprion."

 

So the mystery is officially solved!  Hooray!  And thanks so much to scolecodont specialist Mats Eriksson for getting back to me re: my specimens - what a great guy!!! :)

 

PS - I'm now off to submit these two specimens for March's "Invertebrate Fossil of the Month"... 

Way to go Monica!

  • I found this Informative 1

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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How splendid! 

And much kudos to Mats Ericsson. 

Great stuff, Monica.:)

  • I found this Informative 1

Life's Good!

Tortoise Friend.

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

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1 hour ago, Tidgy's Dad said:

How splendid! 

And much kudos to Mats Ericsson. 

Great stuff, Monica.:)

 

Thanks, Adam! :dinothumb:

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