Triassic Ammonoids

Discussion in 'Cephalopod Fossils' started by Hajar, Mar 9, 2011.

  1. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Here's a pile of Triassic ammonoids thrown together on my desk. Ceratites and Discoceratites (19 cm) from Germany at the back, then two Choristoceras from Austria, Halorites from Indonesia, Meekoceras from Crittenden Springs, a French Ceratites, a Crittenden Springs Dieneroceras and a few Greek specimens (Sturia, Flexoptychites, Cladiscites and Arcestes).

    I blame TONMO. I thought a year of curiosity about these creatures would be enough, but no I'm still quite fascinated by them.

    I have a memory of camping as a teenager in a grove of cherry trees in Alsace just next to a quarry yielding Ceratites. I brought a couple of them back, but don't remember what happened to them.
     

    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
    More nice fossils Hajar :notworth:

    I really like that German Ceratites!
     
  3. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    You can have it if you like!
     
  4. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

    Joined:
    Nov 19, 2002
    Messages:
    2,391
    Likes Received:
    94
    Location:
    somewhere under the desert sky
    No thanks! I just like to admire it in the photo with the rest. It shows the sutures so well. 8-)
     
  5. POD-L

    POD-L O. bimaculoides Registered

    Joined:
    May 29, 2005
    Messages:
    65
    Likes Received:
    1
    Location:
    Comox, B.C.
    Hajar, nice selection, I really find those Greek ammonoids in black on a red matrix fascinating!
     
  6. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Thanks POD-L, that Greek rock is a real cephalopod limestone.
     
  7. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

    Joined:
    May 30, 2000
    Messages:
    8,735
    Likes Received:
    511
    Location:
    Pennsylvania
    Tweeted! Thanks as always Hajar...
     
  8. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Timor cephalopod limestone

    Here is another of those Triassic red cephalopod limestones, this one from Timor. The Ophiceras is 7.5 cm across.
     

    Attached Files:

    Architeuthoceras and Terri like this.
  9. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    Really beautiful, I don't think I've ever seen one quite like it, is it calcite?
     
  10. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,076
    Likes Received:
    1,123
    Location:
    Gainesville, GA USA
    Wow! It looks almost man-made with the color and texture differences between the rock and the fossil. Has it been coated or sanded to get that effect? Welcome back!!!!
     
    Terri likes this.
  11. POD-L

    POD-L O. bimaculoides Registered

    Joined:
    May 29, 2005
    Messages:
    65
    Likes Received:
    1
    Location:
    Comox, B.C.
    Beautiful!!
     
  12. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Thanks all. Yes Terri - white calcite against red matrix looks great. I think they have lightly air abraded this one D. The aesthetics attracted me, but also the connection with that little Omani Ophiceras. By the way I have reincarnated in a strange land that has no wild cuttlefish.
     
    Terri likes this.
  13. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    hmmm...
     
  14. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,076
    Likes Received:
    1,123
    Location:
    Gainesville, GA USA
    Hopefully you still have a nearby ocean to snorkel.
     
  15. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    .. another couple of these Timorese white-on-red Triassic ammonoids (since I'm snapping a few photos). The first is 65 mm across, the second just 30.
     

    Attached Files:

    DWhatley and Terri like this.
  16. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

    Joined:
    Nov 19, 2002
    Messages:
    2,391
    Likes Received:
    94
    Location:
    somewhere under the desert sky
    WOW! These are very well preserved, amazing fossils. 8-)
     
    Hajar likes this.
  17. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    It would be fun to visit the outcrops of this limestone in person. Has anyone been there?
     
  18. POD-L

    POD-L O. bimaculoides Registered

    Joined:
    May 29, 2005
    Messages:
    65
    Likes Received:
    1
    Location:
    Comox, B.C.
    Those are beautiful!!
     
    Hajar likes this.
  19. Terri

    Terri Sepia elegans Registered

    Joined:
    Dec 20, 2009
    Messages:
    960
    Likes Received:
    85
    Wouldn't that be a glorious trip? Have you seen any other associated fauna from this locale? I wonder if they're perserved in the same way?
     
  20. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    well there's this.
     

    Attached Files:

Share This Page