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Need Id Of These Paddle-Shaped Corals


dhavlena

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HI New here so please excuse any mistakes.

Can anyone help me identify just what kind of coral I've got

here?? They are paddle shaped, from 4" to 6" tall & are

fairly common at the nearby Rockport Quarry (now thankfully

owned by the state of Michigan).

I've been searching the images on Google (& elsewhere) for over

a week and have found nothing like these paddle-shaped corals

that taper to an attaching base.

ONE PHOTOS ATTACHED _ TRIED to attach two, but system refused it!

Will try to send 2nd, different angle, photo in another posting.

Rockport's a great place if anyone finds themselves in northern

Michigan!

THANKS

Dennis Havlena

dhavlena@gmail.com

www.DennisHavlena.com

post-2464-12579611041828_thumb.jpg

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ME again -- here's the 2nd photo of the

paddle-shaped corals that I couldn't get on my

first posting a few minutes ago.

Please let me know if I'm doing things wrong.

Thanks

Dennis

post-2464-12579613828786_thumb.jpg

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Dennis,

They appear to me to be the tabulate coral Favosites favosus (Goldfuss).

JKFoam

The Eocene is my favorite

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These corals are Hexagonaria. In Michigan they are more commonly known as Petoskey stone. These are not water worn as Petoskey stone is. Go to the Michigan Basin fossil site (http://strata.geology.wisc.edu/mibasin) and search under Hexagonaria to see some other examples. The overall shape has nothing to do with the type of coral. It is the individual coralites that determine the kind that you have.

crinus

Edited by crinus
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Guest solius symbiosus

These corals are Hexagonaria.

I think that they look more like a columnariid or favositid than a disphyllid.

Dhavlena, can you get a close up of an individual corralite?

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I think that they look more like a columnariid or favositid than a disphyllid.

Dhavlena, can you get a close up of an individual corralite?

HI These pics are the best my simple camera can come up with.

Much thanks! Let me know if any other photos would be helpful

Dennis

post-2464-12580509238731_thumb.jpg

post-2464-12580509266175_thumb.jpg

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Guest solius symbiosus

As the columnariids are restricted to the Ord and Sil rocks from Laurentia, I think that jkfoam nailed it. They are probably Favosites, though a longitudinal image would be nice.

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