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Features Not Normally Seen In Edrioasteroids


Caleb

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A couple years ago, my father picked up an Edrioaster sp. in the Galena Formation of Southeast Minnesota. What makes this specimen interesting is that it was preserved fully inflated and showing the holdfast and the outline of the structure it was attached to. We got the specimen back at MAPS this past year after having it prepped and I finally took some photos of it. I just hope I got the genus ID correct.

Edrioaster sp.

Galena Formation, Prosser Member

Ordovician, Trentonian

Southeast Minnesota

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Anotated

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Feel free to post photos of your Edrioasteroids!

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very cool... i've found a grand total of one edrio to date, an isorophus cincinnatiensis hitching a ride on a rafinesquina ponderosa brach... ordovician, cincinnati area... i need to find an image of it.

Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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WOW!

I have a couple posted under Miss. Edrios, nothing like that though.

"Absence of evidence is not evidence of absence"_ Carl Sagen

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" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

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Awesome, never saw an inflated one or the holdfast before. Looks like a piece of irregular hardground it is attached to.

We find them in Mississippian of Southern Illinois attached to the surface of bivalves in one horizon near Bumcombe IL

but not inflated...

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Awesome, never saw an inflated one or the holdfast before...

This is a first for me, too; very interesting!

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Nice 3D edrio! Most of the time the ones I see in the ordovician are squished flat in the bedding plane with marginal relief....

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Thanks all. I've seen quite a few of these coming out of similar age rocks in Canada, but this is only the second one we've found in many many years of collecting Minnesota. I just wish I had a better camera to show the detail a bit more. Someday... someday...

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