Fossil Nautilids

Discussion in 'Cephalopod Fossils' started by Architeuthoceras, Nov 28, 2008.

  1. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    Another from the vault, 4 views of ?Eutrephoceras from the Coniacian (Late Cretaceous) portion of the Mancos Shale in Central Utah. This one is strange as it has ribs, all others found at this locality dont have ribs. Does that mean it is pathological or just a different species than the others?
     

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  2. POD-L

    POD-L O. bimaculoides Registered

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    ?Nautiloid

    We have a ribbed Nautiloids here in the Cretaceous Nanaimo Group, Santonian - Campanian
    Cymatoceras(simple suture) and Paracymatoceras (s-shaped suture)as well as Eutrephoceras.
     
  3. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    Thanks POD-L, any chance of a photo or maybe some references?
     
  4. POD-L

    POD-L O. bimaculoides Registered

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    Cretaceous Nautiloids

    Here is a link to a Russian article, there has been little work on our Nautiloids but my info is from this work of a similar age on Sakhalin Island.
     

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  5. POD-L

    POD-L O. bimaculoides Registered

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    Lower Cretaceous nautiloids

    Here is another paper on lower cretaceous nautiloids a little closer to home ,Texas.
     

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  6. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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  7. POD-L

    POD-L O. bimaculoides Registered

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    photos

    Architeuthoceras
    I will attempt to post some pictures of my Nautiloids.
    Here is one I just found on the Trent River vancouver Island 2 weeks ago. Eutrephoceras.
     

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  8. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    Very nice fossil POD-L, very well preserved, the sutures seem to be more sinuous than most Eutrephoceras.
     
  9. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    I have moved some of the new posts from the "Vault" thread into this new thread for continuity.

    The nautiloid with fold like ribs may be Anglonautilus. Ref here. Most are from the Cenomanian so if they are congeneric this could extend their range into the Coniacian, more study is needed.
     
  10. POD-L

    POD-L O. bimaculoides Registered

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    Good thread I will be reading your additional references and posting some pictures here in the near future.:grin:
     
  11. POD-L

    POD-L O. bimaculoides Registered

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    Some more pictures,I wish they were as clear as Architeuthoceras's



    Here is a Nautilid from new highway construction north of Courtenay B.C.
     

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  12. POD-L

    POD-L O. bimaculoides Registered

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    nautilid

    Here are new pictures of the Trent River specimen one showing some detail of shell, some what reticulate?

     

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  13. POD-L

    POD-L O. bimaculoides Registered

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    other nautilids

    A small nautilid from the highway cut near Pup creek
    And my ribbed "Cymatoceras" the living chamber has been dsplaced a bit
     

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  14. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    I hate to make too many comments here but do want ya'll to know that the posts are appreciated and read. I am always in awe at what you find and can identify.
     
  15. POD-L

    POD-L O. bimaculoides Registered

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    Thanks

    Thanks Dwhatley,this fossil thing is a bit of an obsession,we can get totally in our own world, nice to know other people can appreciate what we find!:wink:
     
  16. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    All things ceph seem to be that way :tentacle1:
     
  17. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    Well I have a life outside of the ceph world... no, really, its drug induced :rainbow:

    Nice fossils POD_L, I have never seen a reticulate pattern like that on a nautiloid, thats neat. 8-)

    below is a Eutrephoceras from the Santonian, notice the straight sutures, it is a little distorted, but not that much.
     

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  18. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Everytime ya'll post your finds, the first thing that comes to mind is, "What an interesting fireplace they could make!". Of course you could never sell the house after that (unless you had enough of a surplus to build another) :razz:
     
  19. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    Yea, a fireplace, two bedrooms, three walls out in the backyard and the field next door. It would be easier just to move out on an outcrop somewhere and build a new house out of fossils. :lol:
     
  20. POD-L

    POD-L O. bimaculoides Registered

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    straight sutures

    Yes I can see how straight the sutures are,great for comparison. We do have some like that , I have seen one example in another's collection with a super S suture, possibly Paracymatoceras.
     

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