Jump to content
Sign in to follow this  
-Andy-

Brazilian Fish Id

Recommended Posts

-Andy-

Hi all, I recently acquired this Brazilian fossil fish from a good friend of mine.

It's about 4.5 inches long.I am guessing it's either Rhacolepis buccalis or Vinctifer, but I truly have no idea how to ID it.

Help would be appreciated, thank you.

post-4888-0-89542400-1349863911_thumb.jpg

Share this post


Link to post
Share on other sites
Fossildude19

Hello Andy,

Unfortunately, I don't believe that there is enough detail left in this fossil to make a positive ID. (So little detail in fact, that it almost doesn't even look like a fossil. )

Vinctifer is usually a larger fish with long rectangular scales, and usually shows the triangular anal and dorsal fins.

The Rhacolepis are smaller, and have regular diamond shaped scales.

If I had to guess, I would lean towards Rhacolepis, but I fear you may just have to label it: Indeterminate fossil fish,Santana fm. Brazil.

Regards,

Edited by Fossildude19

Share this post


Link to post
Share on other sites
Kosmoceras

Looks fishy to me. The matrix is two different colours, if it is real it would be made up of two different fish (tail and a head) stuck together. But as Tim said there is little detail, and it looks a bit fake to me. Sorry.

Share this post


Link to post
Share on other sites
CH4ShotCaller

Doesn't resemble a fish fossil, exception being the suggestive appearance. Looks more like agate. Thanks for posting, that's the best 'natural made' fish I've seen in many years.

Share this post


Link to post
Share on other sites
Fossildude19

It is possible that this is real fossil.

The preservation on these is a bit spotty sometimes, and the concretion may have broken badly, leaving less detail than usual.

If it was prepped from the other side, you might be able to see if it's real, and if it is, what type of fish.

That said, the head end of the fish looks a bit too symetrical, though. :unsure:

post-2806-0-53407700-1349879757_thumb.jp

Don't know why someone would fake one of these, but I suppose that is possible as well.

With just pictures, though, it is really hard to say positively one way or another.

Maybe Thomas (oilshale) or Paleozoicfish can weigh in on this one.

I'd like to hear more from someone more experienced with this type of fish concretion.

Regards,

EDIT: Andy, - Can we get some pictures of the back and sides of this?

Edited by Fossildude19

Share this post


Link to post
Share on other sites
-Andy-

Thank you for the analysis.

Here are more pictures.

post-4888-0-14740400-1349887365_thumb.jpg

post-4888-0-48639000-1349887376_thumb.jpg

post-4888-0-08924800-1349887388_thumb.jpg

Share this post


Link to post
Share on other sites
Fossildude19

Thanks for the additional pics, Andy.

Does not look like a pieced together fish. The concretion looks complete.

The anterior/ front portion of the head may have been made to look "better" with some type of restoration. I just can't tell from the pics, other than it looks a bit dodgy.

Other than that - I'm out of my depth.

Maybe one of the fish experts will show up to offer some thoughts. :)

Regards,

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×