Jump to content

Possible osteoderm


Sanjay

Recommended Posts

Hi, recovered these from conglomerate horizon in jurassic strata near jaisalmer, Rajasthan, India.

My guess is they are osteoderm of some sort. Looking for some more educated opinions.

IMG-20201220-WA0035.jpg

IMG-20201220-WA0034.jpg

IMG-20201220-WA0033.jpg

IMG-20201220-WA0025.jpg

Link to post
Share on other sites

Looks similar in texture to a chimaera tooth plate, if this is a jurassic marine setting this could be your potential answer.

Here's my own from the Late Cretaceous of New Jersey.

5fe655c8ce9ca_2017_1002_235741_002(1).thumb.JPG.5f3db8731d8399faa6896e9af385230f.JPG

  • I found this Informative 2
Link to post
Share on other sites
pachy-pleuro-whatnot-odon

My initial guess would also have been tooth-plate, as the grooved surface on the finds look more like the dental ridges on a fish's tooth-plate then the comparatively rougher surface of an osteoderm. Compare with the below images of fossils found in the Boulonais region of northwestern France and dating to the Kimmeridgian and Tithonian stages of the Jurassic:

 

jden001_thmb.jpg.d103f93262dfce3c6aa532e7293e3043.jpgIschyodus sp. (Auluxacanthus, Leptacanthus)

 

 

 

jden160.jpg.a8cd3b67b73e5ef976d0cef4e9c39700.jpgAsteracanthus sp.

 

 

 

 

 

jden135.jpg.2e7844080cf1ef77982dd6799ccfa246.jpgAsteracanthus ornatissimus

 

 

 

 

 

jden146.jpg.66e16af56cbfb1b11d19619f6b9ab2b3.jpgGyrodus sp.

  • I found this Informative 1
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...