Devonian Mystery- Algae?

[Kman100]

Hey guys.

This was found in the Helderberg group, upstate ny. It is late Silurian to middle Devonian.

Any ideas?

Thanks

[Kman100]

Forgot to add, at the longest it is about the diameter if a penny

[nils]

Hi!

I´ve got an idea...

It could be a graphtolite. I´ve got one piece in my collection, it´s from the middle-devonian. It looks similar to your find.

Did you find it in marine sediments?

Cheers,

Nils

[jgcox]

Think it could be graphtolits.

[Kman100]

Hmm, im not 100 percent sure yet, but i think graphtolites are very likely.

[Auspex]

LINK

[Kman100]

And there we go! thank you!

[Wrangellian]

Note the spelling

[kwilson]

Dictyonema hamiltoniae?

[kwilson]

Opps, my mistake - that D. hamiltoniae is Middle Devonian. Check out:

Graptolites of New York, Part 2, by Reudolf Reudemann. NY State Museum Memoir 11 (1908)

See Google Books:

http://books.google.com/books?id=cfAjAQAAIAAJ&pg=PA455&lpg=PA455&dq=Helderberg+graptolite&source=bl&ots=pkPBMI2ld-&sig=fZRyWiHVy1EL8oAqWB9re9-cGNs&hl=en&sa=X&ei=B_iIUvfuOoet4APXl4GQBg&ved=0CD4Q6AEwBA#v=onepage&q=Helderberg%20graptolite&f=false

[nils]

Note the spelling

oops..

in german its a "graptolith", so i spelled it wrong two times ... shame on me