Tuesday, August 18, 2009

Spinatrypa Brachiopods

These pictures show Upper Devonian Period brachiopods called Spinatrypa. They were found in the Fort Simpson Formation (Frasnian) in the Northwest Territories of Canada. Thanks to Howard in Alberta, Canada for providing the images and information for today's post.

The brachiopod in the left of the first picture is considered large while the other is about the average size found.
Close up view of the larger brachiopod shown earlier of its brachial valve.

I have included a picture of a Devonian brachiopod I found here in Louisville, Kentucky with one found in the Northwest Territories of Canada.


Anonymous said...

Oops--sorry, I lied about the formation--I just checked my records, and these specimens are actually from lower part of the overlying Escarpment Formation, so slightly younger than Fort Simpson, but still Frasnian (Late Devonian).


Calgary, AB, Canada

Kentuckiana Mike said...

Thanks for the correction.

It sounds like an honest mistake.

Don't look too close at this blog because I am sure there are quite a few identification errors here.

Enjoy the day!