Sunday, January 24, 2010

Crytolites ornatus

UPDATE (01/27/2010): After cleaning this fossil off some more I changed its identification to Crytolites ornatus after the undulation (definition: having a wavy or curving form) were revealed by sand blasting.  If I can get more of the matrix off, this will be a very nice looking fossil.  The keel shape going down the center has a very nice form.  Thanks to Kenny for alerting me to what this fossil really was.



ORIGINAL POST:
Here are some Bellerophon fossils I found in the Kope Formation in Carroll County, Kentucky.  Until now, I have not found growth line patterns found on the shell.  Usually, I just find a smooth shell pattern with the ridge line running the length of the shell.  A Cyclonema fossil is attached to the Bellerophon.

It is a neat find and I hope to clean with air abrasion sometime to reveal the growth lines.







This Bellerophon mold is typical of the ones I find at Ordovician Period road cuts around the Louisville area. It has a nice whirl at one end of the fossil.



2 comments:

Dave said...

That Bellephron looks like a prime candidate for cleaning... great find!

Fossil Detective said...

Thanks for the comment. I started cleaning the fossil and discovered that shell had ripples or undulations. I named this one wrong, it appears to be a Cyrtolites ornatus? (Fossils of Ohio book pp. 158-159 figure 5,6).

Very nice looking fossil, the Kope Formation has some beautifully preserved specimens! I will update this entry soon to correct my mistake.