garyc Posted January 26, 2021 Share Posted January 26, 2021 I think I know what this is, but will hold off until other input is given..... found on the Brazos River in Texas, Pleistocene @Harry Pristis @Lorne Ledger @fossilus Link to comment Share on other sites More sharing options...
garyc Posted January 26, 2021 Author Share Posted January 26, 2021 Link to comment Share on other sites More sharing options...
garyc Posted January 26, 2021 Author Share Posted January 26, 2021 1 Link to comment Share on other sites More sharing options...
hemipristis Posted January 27, 2021 Share Posted January 27, 2021 Camel? 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
garyc Posted January 27, 2021 Author Share Posted January 27, 2021 26 minutes ago, hemipristis said: Camel? Thanks, but I don’t think it’s artiodactyl Link to comment Share on other sites More sharing options...
fossilus Posted January 27, 2021 Share Posted January 27, 2021 It looks a lot like harry's middle phalanx belonging to a Tapir. You might compare to his photos in the forum. Link to comment Share on other sites More sharing options...
garyc Posted January 27, 2021 Author Share Posted January 27, 2021 (edited) 1 hour ago, fossilus said: It looks a lot like harry's middle phalanx belonging to a Tapir. You might compare to his photos in the forum. I’m not thinking tapir or perrisodactyla. I found a similar bone a few years ago that Richard White identified as either beaver or capybara. Here’s a pic of both bones. The larger more robust one is what I found today. @Harry Pristis @Lorne Ledger Edited January 27, 2021 by garyc 1 Link to comment Share on other sites More sharing options...
Lorne Ledger Posted January 27, 2021 Share Posted January 27, 2021 My first thought is tapir medial phalanx - but the distal end screams Llama. The proximal concavity is awfully round which is leaning me towards tapir. What are you thinking it is @garyc 1 Link to comment Share on other sites More sharing options...
Lorne Ledger Posted January 27, 2021 Share Posted January 27, 2021 Oh interesting, giant beaver could be a possibility - Castroides ohioensis I have never personally found any capybara down there but I have found giant beaver material. Partial tooth and partial incisor. It does have a bit of a rodent look to it. 1 Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 27, 2021 Share Posted January 27, 2021 I'm pretty confident that this is a medial phalanx from a lamine camelid. It is stream-worn, but the overall contours are right for camelid. 6 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
garyc Posted January 27, 2021 Author Share Posted January 27, 2021 4 hours ago, Harry Pristis said: I'm pretty confident that this is a medial phalanx from a lamine camelid. It is stream-worn, but the overall contours are right for camelid. I do see the similarity to camel medial. Harry, do you happen to have a picture of the proximal end? That’s what’s throwing me off. Mine is a perfectly smooth, concave surface Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 27, 2021 Share Posted January 27, 2021 No, Gary, I don't have a more useful image. I did take a couple of these bones in hand to compare with your image of the proximal end. I don't have time at the moment to make an image. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
garyc Posted January 27, 2021 Author Share Posted January 27, 2021 43 minutes ago, Harry Pristis said: No, Gary, I don't have a more useful image. I did take a couple of these bones in hand to compare with your image of the proximal end. I don't have time at the moment to make an image. Thanks, Harry! I appreciate your assistance. Now, I question the id of the smaller as beaver. They really look identical, other than size. Link to comment Share on other sites More sharing options...
fossilus Posted January 27, 2021 Share Posted January 27, 2021 I'm looking at my copy of Osteology of Camelops LA county museum 1965. Yours looks very much like the picture of what would be the medial phalanx, and should have a concave articulation with the proximal phalanx, of which I have several. My proximal phalanx's show a convex, simple surface, that is just over an inch wide (1.1-1.4 inches). My llama proximal phalanx's have an articulation surface that is between .6 and 1 inch wide. 2 Link to comment Share on other sites More sharing options...
fossilus Posted January 27, 2021 Share Posted January 27, 2021 1 Link to comment Share on other sites More sharing options...
fossilus Posted January 27, 2021 Share Posted January 27, 2021 You probably have found some of these, but the 3 on the right I believe to be Camelops, the 2 on the left llamas based on the tendon attachments. For some reason I find alot more proximal. (Probably because they are larger and easier to see). 3 Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 27, 2021 Share Posted January 27, 2021 1 hour ago, garyc said: Thanks, Harry! I appreciate your assistance. Now, I question the id of the smaller as beaver. They really look identical, other than size. You can expect considerable individual variation in these homologous bones. There are two genera of lamine camelids in the Pleistocene, but there are other camelids in the Florida Mio-Pliocene. 3 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
garyc Posted January 29, 2021 Author Share Posted January 29, 2021 Here are some of my other camel phalanxes and cannon bones. The proximal phalanxes really do articulate well with these 2 medials. Thanks even for steering me in the right direction. 4 Link to comment Share on other sites More sharing options...
garyc Posted January 29, 2021 Author Share Posted January 29, 2021 On 1/26/2021 at 6:32 PM, hemipristis said: Camel? Looks like you were right all after all. Thanks! Link to comment Share on other sites More sharing options...
garyc Posted March 2, 2022 Author Share Posted March 2, 2022 (edited) I’m bringing back this thread from the dead because of the recent post by @Sacha of a similar looking phalanx. The 2 bones I originally posted have very concave proximal surfaces. Edited March 2, 2022 by garyc Link to comment Share on other sites More sharing options...
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