Can Anyone positively Identify this Creature?

Discussion in 'Biology & Genetics' started by Scott Myers, Mar 6, 2013.

  1. Scott Myers Newbie Registered Senior Member

    Messages:
    290
    I found this in our local limestone a couple of days ago. It's the best fossil I've ever found lying around. Wondered exactly what it was... is it a common snail or something else. I assume it's a salt water creature.

    Thanks

    View attachment 6129
     
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  3. Nehushtan Registered Member

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    29
    An ammonite, perhaps?
     
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  5. Stoniphi obscurely fossiliferous Valued Senior Member

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    3,255
    I have a limestone replacement/cast fossil that looks very much like that. It is about 1 & 1/2 inches in diameter. While I found it in railroad bed gravel, its likely source is a large limestone quarry nearby that has a rich field of Devonian coral reef fossils. I judged it to be a gastropod (snail) as that is just how it appeared. I have a few ammonites and they tend to be very much larger and generally more elaborately shaped/textured than the gastropodae of that era.

    However, an ammonite is also a very good possibility, especially if it is a large specimen. How big is it?
     
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