Ordovician Crinoids

Discussion in 'Cephalopod Fossils' started by Solius, Mar 31, 2012.

  1. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    These were collected from "garden" that has been very rich in specimens. They appear to be diblobathrid camerates from the Shermanian of Kentucky. I have a pretty good ideal of the family and genus, but as I am learning the crinoids, am wondering what others think?



    A couple of buddies hanging out.


    Closeups of the ones above.

     

    Attached Files:

  2. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

    Joined:
    Nov 19, 2002
    Messages:
    2,391
    Likes Received:
    94
    Location:
    somewhere under the desert sky
    Beautiful fossils! I don't know a thing about Crinoids other than knowing the parts so I can't help there. Thanks again for posting these.
     
  3. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    Those are diplobathrids not diblobathrids.

    Here is a different camerate from the same outcrop.


    And another diplobathrid. Note the intimately associated odontopleurid trilobite(sans cephalon). Those are rather rare, here.

    A nearly complete odontopleurid(Primaspis sp.)


    I don't want to spam the forum, so I will stop with this last one. It is three on a small slab. I have many multiples.
     

    Attached Files:

    DWhatley likes this.
  4. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    These are from a small(
     
    Terri likes this.
  5. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    No need to stop posting! Beautifully preserved Crinoids to be as old as they are, I can't help with ids. either. In the Ordovician rocks I hunt here in middle Tennessee I mainly find bits and pieces of stems and holdfasts, nothing yet as complete as yours. :cool:


    Awesome bugs!:trilobit:
     
  6. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    Thanks for the welcome. I have tons of Ord. bugs, but they are from different outcrops, so I'll save those for another day. Here is some of the faunal assemblage associated with the crinoids. These things are associated with rip-up clasts at the base of the bed, so they are probably tempestites; that would explain the articulation of the crinoids.

    The site is littered with rhynconellids



    And strophomenids, too. This one is covered with worm tubes(jCornulites sp)


    Gotta run, will post more, later.
     

    Attached Files:

  7. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    Thanks for the welcome. I have lots of trilobites, but they are from other outcrops. Here is some of the fauna from the crinoid outcrop:

    The place is littered with rhynconellids


    There are loads of strophomenids, too.(with epibionts-Cornulites)



    There are 4 different Orders of bryozoans represented: trepostomate, cyclostomate, cryptostomate, and cystoporate. This one is a trepostomate(I will post some others, later)


    I will post other fauna from the outcrop, later.
     

    Attached Files:

  8. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    Wow, looks a lot like the Lebanon limestone here, tons of strophomenids, rhynchonellids, bryozoans (most of which aren't id'd yet), some cephalopods (not as many as I would like), graptolites, and just a few bits and pieces of trilobites, several different types of corals. 8-)
     
  9. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    More fauna:

    A large bysonnichiid


    Hypostome from a large asaphid trilobite(Probably Isotelus gigas).


    More dicyclic camerates:


    Note the tegmen.


    More later
     

    Attached Files:

    Terri likes this.
  10. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    Hi Solius! The first pic. in post nine, what is it? I tried googling bysonnichiid and didn't get any results. Is it a trilobite part?:hmm:
     
  11. Solius

    Solius Blue Ring Registered

    Joined:
    Feb 13, 2011
    Messages:
    30
    Likes Received:
    17
    That should read *ambonychiid*. It is probably a Bissonychia sp. bivalve. I find a lot of ambonychiids, but usually they are much smaller than the one in the photo.
     

Share This Page