Shark fin spine fragment?

[wildchild33]

Another DFW Creek find, it looks very similar to a Ctenacanthus fin spine but could be skin, trace fossil?

[Fossildude19]

Welcome to the Forum.

Unfortunately, the pictures are quite blurry.

I don't see any details that would lead me to believe it was a shark spine.

Better pictures would probably allow us to narrow down an ID.

Where is Bear Creek?

Do you know the age of the sediments there?

Regards,

[PaleoRon]

The pics don't have a lot of detail but the pattern reminds me of the back of a piece of tile.

[Al Dente]

The pics don't have a lot of detail but the pattern reminds me of the back of a piece of tile.

I think so too.

[wildchild33]

The creek is at DFW airport, Woodbine, Cretateous, and I ruled

[wildchild33]

Whoops, anyway I ruled out tile because it was too thin, too light, had many thin layers, and was porous.

[ynot]

In focus pictures would help. Also if You can take some from other angles - back and sides.

Tony

Edited August 18, 2016 by ynot

[Harry Pristis]

Try making an image with your scanner.

[siteseer]

I probably don't have to tell you that Ctenacanthus and its relatives were long gone by the time of Woodbine deposition. Hybodont and chimaeroid fin spines had a similar general look but I don't see that in any way in the photos. The criss-crossing lines do appear to indicate a manmade item with some like of organic build-up/structure attached to it.

On 8/18/2016 at 5:52 AM, wildchild33 said:

Another DFW Creek find, it looks very similar to a Ctenacanthus fin spine but could be skin, trace fossil?

[wildchild33]

A few more pics & example. The edges don't look like a manmade item.

[wildchild33]

While your here, any thoughts on this thing?

[wildchild33]

Had to get lighting right.

Edited August 21, 2016 by wildchild33

[Ted Tutor]

they are all just Leaverites:P WildChild,

I've hunted this creek for years, and haven't seen anything to speak of.

But we must keep looking!

[DNF]

It might be a piece of plaster with metal lath imprint.

 

This book shows metal lath types starting on page 105:

https://babel.hathitrust.org/cgi/pt?id=uc1.$b77712;view=1up;seq=111;skin=mobile