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tstark    1
tstark

So this came to me in in pieces and it was been repaired and I still have no ideas or what it could be.  All I know is thats is from morocco (unknown region),  it looks to have "suckers" on the end of the piece which throws me.  I have had the thought of a marine plant root of some kind.  Thanks for the help!-1.jpg

-2.jpg

-3.jpg

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PFOOLEY    693
PFOOLEY

A heteromorph ammonite.

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ynot    1,922
ynot

I agree with pfooley, a heteromorph ammonite.

Nice one too!

Tony

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tstark    1
tstark

thanks for the quick answers and help. 

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Rockwood    372
Rockwood

Some of us steered this kind of course when we were young :) 

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FossilDAWG    1,827
FossilDAWG

I'm a little uncertain about this one being a heteromorph ammonite.  First, the straight shaft seems to have chambers, but if those really are chambers their edges (suture lines) look to be straight across, as you would see in a nautiloid not an ammonite.  Perhaps a closer picture would resolve the question.

 

Also the smaller diameter shaft is oddly irregular.  There are heteromorphs that have a number of straight shafts that are connected by hairpin turns, such as Diplomoceras or Polyptychoceras, and there are heteromorphic ammonites and also nautiloids that start with a normal planispiral shell that then straightens out; Baculites and Litulites would be examples.  However I am unaware of any cephalopods that start with such an irregular, vaguely twisty whorl and then transition via a hairpin curve to a perfectly straight shaft.  Has anyone seen this growth form before?

 

Don

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abyssunder    2,545
abyssunder

I've never seen something like this before. I'm leaning to a compound element as you suggest, Don. :headscratch:

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JohnJ    1,504
JohnJ

I have some bizarre heteromorph ammonites (likely new species) from the Turonian of Texas.  So, unusual morphology doesn't bother me too much.  However, I agree with Don that better images or direct observation of complex sutures would help confirm an ammonite.  Possible causes for the weird shape could be incorrect assembly during prep, a broken ammonite prepped in a way that makes it seem new, or a pathological specimen.

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