Shellseeker Posted January 29, 2014 Share Posted January 29, 2014 Found this one today --- that is a US penny and this fossil is really small. I think I know what this fossil is, but I did not imagine that they came this small (or smaller?). So, in addition to an ID, is this fossil from a baby? What is a minimum size ? The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
calhounensis Posted January 29, 2014 Share Posted January 29, 2014 (edited) Looks like it belongs to Dasypus bellus. http://www.flmnh.ufl.edu/vertpaleo/fossilspeciesDasypusbellus.htm Edited January 29, 2014 by calhounensis 1 Link to comment Share on other sites More sharing options...
Perico Posted January 29, 2014 Share Posted January 29, 2014 Very neat! I would also like some conformation. Link to comment Share on other sites More sharing options...
Perico Posted January 29, 2014 Share Posted January 29, 2014 Agree Link to comment Share on other sites More sharing options...
RichW9090 Posted January 29, 2014 Share Posted January 29, 2014 I'd like to see a view of the thickness, please. The plural of "anecdote" is not "evidence". Link to comment Share on other sites More sharing options...
jcbshark Posted January 29, 2014 Share Posted January 29, 2014 Hey Jack,I've got one of those too.Only one I've ever found ,I imagine they slip thru my sifter pretty regularly tho lol. Every once in a great while it's not just a big rock down there! Link to comment Share on other sites More sharing options...
Shellseeker Posted January 29, 2014 Author Share Posted January 29, 2014 Measurements are 14mm, by 11mm, by 4mm wide The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
RichW9090 Posted January 29, 2014 Share Posted January 29, 2014 (edited) I believe you have may have an osteoderm of Pachyarmatherium leiseyi. It isn't as thick as some of them get to be, but seems thicker than most D. bellus (which is actually Propraopus bellus). Edited January 29, 2014 by RichW9090 The plural of "anecdote" is not "evidence". Link to comment Share on other sites More sharing options...
Shellseeker Posted January 29, 2014 Author Share Posted January 29, 2014 (edited) Thanks for all responses, and especially Rich -- I make assumptions on minimal data and as you might guess, I am frequently wrong. I thought that this fossil was Glyptodon. I have these two recently --- What are they? EDIT: I did hunt today within 1 mile of Paynes Creek Park which is one of the few sites for Pachyarmatherium leiseyi. Just additional info Rich Edited January 29, 2014 by Shellseeker The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
calhounensis Posted January 29, 2014 Share Posted January 29, 2014 Thanks for the correction Rich, guess I'm guilty of jumping to conclusions as well. Link to comment Share on other sites More sharing options...
Perico Posted January 29, 2014 Share Posted January 29, 2014 This is an interesting post. It would be nice to see a side by side comparison if possible. I am not a professional but spend much time with it as a hobby. Love to learn from you all! Link to comment Share on other sites More sharing options...
calhounensis Posted January 29, 2014 Share Posted January 29, 2014 (edited) Could the second picture in post #9 be Holmesina floridanus? Edited January 29, 2014 by calhounensis Link to comment Share on other sites More sharing options...
RichW9090 Posted January 29, 2014 Share Posted January 29, 2014 Yes, post 9 are Holmesina. I am not 100% sure on the Pachyarmatherium, I'd certainly like to see in in hand, but I suspect that it what it is. And in fact, to your comment, it was first thought to be a miniature glyptodont. The plural of "anecdote" is not "evidence". Link to comment Share on other sites More sharing options...
Miatria Posted January 29, 2014 Share Posted January 29, 2014 (edited) I have a teeny tiny one that measures 3/8"across and 1/4" thick. I'm having some trouble attaching photos as the toolbar on my "reply to topic" field only offers a "url" option (which I haven't been able to figure out) or a "my media" file so I uploaded 3 photos of little osteoderms that I'm hoping will be visible. It will be obvious which of the 3 is the smallest at 3/8" across and 1/4" thick. The other round osteoderm is about 5/8" across and 1/8" thick. The rectangular one is 1x.5" and 1/8" thick. Edited January 29, 2014 by Miatria Zookeeperfossils.com Link to comment Share on other sites More sharing options...
Shellseeker Posted January 29, 2014 Author Share Posted January 29, 2014 Hey Jack,I've got one of those too.Only one I've ever found ,I imagine they slip thru my sifter pretty regularly tho lol. Take a photo and show us what it look like !! I am learning something here about small osteoderms. They are out there and likely some were slipping away but I suspect for many, I just did not see/recognize them. Miatria, Thanks for posting the photos. I really like #5 the edge piece which seems very similar to my 1st photo in post #9. The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Sacha Posted January 29, 2014 Share Posted January 29, 2014 R. Hulbert identified the scutes on the left as juvenile glyptodont (1/2" thick). On the right looks like Shell's (1/4" thick). All smaller than a quarter. Looking at his edited book chapter 10, looks like leiseyi on the left and bella on the right. Suggestions? Link to comment Share on other sites More sharing options...
Sacha Posted January 29, 2014 Share Posted January 29, 2014 Here's a natural light photo. Link to comment Share on other sites More sharing options...
RichW9090 Posted January 29, 2014 Share Posted January 29, 2014 Sacha: Yes, the ones on the left appear to be Pachyarmatherium. Miatria: Your littlest one may well be Pachyarmatherium, but that is a really, really small one if so. Rich The plural of "anecdote" is not "evidence". Link to comment Share on other sites More sharing options...
Midnight Contender Posted January 29, 2014 Share Posted January 29, 2014 Take a photo and show us what it look like !! I am learning something here about small osteoderms. They are out there and likely some were slipping away but I suspect for many, I just did not see/recognize them. Hey Shellseeker, you asked for some more micro osteoderms. I would love some positive ID on these. They all came from the Peace River. 1 Link to comment Share on other sites More sharing options...
Midnight Contender Posted January 29, 2014 Share Posted January 29, 2014 Here is another interesting one I just dug up. Link to comment Share on other sites More sharing options...
Shellseeker Posted January 29, 2014 Author Share Posted January 29, 2014 (edited) Your last photo plus 5 of the 6 original photos are Ray Dermal Denticles. These tend to serve as the "base" beneath the skin for anchoring the sting ray spines. They can be beautiful and have numerous variations based on the type of Sting Ray. If you search for "Dermal Denticle" you will find many variations. The distinctive one is the last of your original 6. I am not an expert here, but others will ask you to produce photos similar to my post #7 above --- what is the width? SS By the way, nice finds -- I love seeing dermal denticles in my sieve. Here are a couple of my best below and a couple more in my gallery http://www.thefossilforum.com/index.php?/gallery/member/2220-shellseeker/ Took me a while to find this -- one of the best Dermal Bucklers I have ever seen -- Thanks for olf TFF Threads http://www.thefossilforum.com/index.php?/topic/21564-june-2011-finds-of-the-month/page-2 Edited January 29, 2014 by Shellseeker 1 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
MarcoSr Posted January 29, 2014 Share Posted January 29, 2014 Take a photo and show us what it look like !! I am learning something here about small osteoderms. They are out there and likely some were slipping away but I suspect for many, I just did not see/recognize them. Hey Shellseeker, you asked for some more micro osteoderms. I would love some positive ID on these. They all came from the Peace River.image.jpgimage.jpgimage.jpgimage.jpgimage.jpgimage.jpg Last two are definitely ray. 1st and 3rd also look like ray. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Midnight Contender Posted January 30, 2014 Share Posted January 30, 2014 Thank you Shellseeker and MarcoSr. They are ray denticles. Mine look almost ray-denticle (I couldn't resist) like the two you have. The one that remains without comment is this one, which I have taken front and back pics. It is very small, round and concave. I hope these other pics help. Link to comment Share on other sites More sharing options...
Miatria Posted January 30, 2014 Share Posted January 30, 2014 Shrek and Fiona, they all look like dermal scutes from rays with the exception of the 6th photo in you first post. Great finds! Zookeeperfossils.com Link to comment Share on other sites More sharing options...
Miatria Posted January 30, 2014 Share Posted January 30, 2014 Oops! Didn't see the second page of replies and got all excited about the dermal scutes. :-) Zookeeperfossils.com Link to comment Share on other sites More sharing options...
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