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Roemeriid - a new family of tabulate corals in the US!


LisaL

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I have some exciting news, thanks to the help of @TqB, who suggested that this tabulate coral I found in southwest Michigan glacial drift a few days ago is much more interesting and unusual than I could have imagined! 
 
After thinking about and dismissing a number of favositid possibilities, we realized that this is a cerioid syringoporid.
 
Tarquin suggested that, due to the appearance of domed and/or infundibuliform tabulae inside the transverse and longitudinal sections, along with a few apparent mural pores and a possible syrinx (mural pore tunnel) structure, this might be a roemeriid. This is exciting because, besides a documentation from the Devonian Canadian Arctic on Fossilworks, this family has not been found before on the American continent, certainly not in the U.S.
 
I emailed photos to the tabulate coral specialist Dr. Mikolaj Zapalski, who confirmed Tarquin's diagnosis! Here's his reply this morning:
 
I think that your diagnosis is correct - it is a roemeriid.  . . . as far as I can tell, it resembles Roemeripora - but the corallites are much larger than any Roemeripora I have seen. On the other hand I have experience only with some Polish and Russian taxa, so these species may be different. An isolated specimen may not be very helpful, but if further specimens are found, this could be potentially interesting for research.
 
Mikołaj K. Zapalski Ph. D., D. Sc., FLS

University of Warsaw, Faculty of Geology

 
So, it looks as though this could be the first known discovery of a roemeriid, possibly a new species of Roemeripora, from the U.S.!
 
Here are photos! I'm sending the specimen to Tarquin in hopes that he can prep it a little better or notice more details that I've missed. 
 
Best!
Lisa
 

roemeriid_transverse.png

 

roemeriid_transverse_bottom.png

 

roemeriid_transverse_side.png

 

 

roemeriid_longitudinal_zoom.png

 

An annotation of the previous photo, showing possible mural pore and syrinx structure:

 

roemeriid_longitudinal_annotation.png

 

roemeriid_longitudinal_zoom2.png

 

roemeriid_longitudinal_fingertips.png

 

 

roemeriid_transverse_closeup.png

 

roemeriid_transverse_fingertips.png

 

roemeriid_transverse_side.png

 

roemeriid_transverse_whole.png

 

 

roemeriid_whole_scale.png

 

 

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@LisaLThat's a wonderful find!

 

It was an exciting few days when you were producing photo after photo while we both trawled through the Treatise, followed by an ever increasing store of online papers. People take instant communication across an ocean for granted - I think of all the early natural historians exchanging letters by boat!:)

 

I'm greatly looking forward to seeing the actual specimen, and will just add that we've agreed it will go to a suitable institution if required.

 

 

Edited by TqB
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Tarquin

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@TqB Another coral specialist to contact is our member (name?) that lives in Mexico (Sonora?). I believe that he is German. He may know more about North American corals.

 

EDIT Hans Loeser. @HansTheLoser

http://www.paleotax.de/coral/

 

Do you know anyone that might also be interested in seeing this coral?

Edited by DPS Ammonite
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My goal is to leave no stone or fossil unturned.   

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3 minutes ago, DPS Ammonite said:

@TqB Another coral specialist to contact is our member (name?) that lives in Mexico (Sonora?). I believe that he is German. He may know more about North American corals.

Thank you, we'll try to track him down.

Edited by TqB
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Tarquin

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22 minutes ago, Al Dente said:

Nice. I hope you find more.

Thank you! I'm hoping that by spreading the word here and on some of the fossil groups on Facebook, we may find others who have turned up examples!

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1 hour ago, TqB said:

@LisaLThat's a wonderful find!

 

It was an exciting few days when you were producing photo after photo while we both trawled through the Treatise, followed by an ever increasing store of online papers. People take instant communication across an ocean for granted - I think of all the early natural historians exchanging letters by boat!:)

 

I'm greatly looking forward to seeing the actual specimen, and will just add that we've agreed it will go to a suitable institution if required.

 

 


Those few days of research and messaging back and forth were more exciting than any on site exploration I've ever done! Can't thank you enough. :) 

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42 minutes ago, TqB said:

Thank you, we'll try to track him down.

 

45 minutes ago, DPS Ammonite said:

@TqB Another coral specialist to contact is our member (name?) that lives in Mexico (Sonora?). I believe that he is German. He may know more about North American corals.

Many thanks for the lead, @DPS Ammonite!

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Congratulations!

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The more I learn, the more I find that I know nothing. 

 

Regards, 

Asher 

 

 

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Well done, both of you! :) 

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    Tim    -  VETERAN SHALE SPLITTER

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Very nice! Great job you two. A fine example of why I love the TFF community. Fossil camaraderie and collaboration at its best! :thumbsu: 

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The good thing about science is that it's true whether or not you believe in it.  -Neil deGrasse Tyson

 

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Hans The Loser does not Paleozoic. But there are even Scleractinians that show a similar morphology, just recently decribed by Bogdan Kolodziej as Heteroamphiastrea loeseri from the Aptian of East Africa:

 

Kolodziej, B. 2020. A new coral genus with prominent, ramified main septum (Aptian, Tanzania). -- Ameghiniana. Revista de la Associación Paleontológica Argentina, 57, 6: 555-565; Buenos Aires. https://doi.org/10.5710/AMGH.26.06.2020.3341

 

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