TNCollector Posted June 14, 2015 Share Posted June 14, 2015 (edited) I made a trip yesterday to two of my favorite Cretaceous spots in the Mississippi Embayment. Found lots of great stuff, I plan on making a trip report soon, but two I am definitely curious about. The first is photo 1, I believe it to be an extremely beat up Hadrosaur tooth fragment based off of the center ridge with smooth edges. Take a look and let me know what you think! Prentiss County, Mississippi Late Cretaceous Coffee Sands ~72mya Measures about 3/8" The second two items are similar, with one having better preservation. They were found in a spot where I normally go to find crab parts (which I did), but they certainly don't look like any crab parts I have seen. My guess is croc scutes of some sort? Any ideas? Third photo shows the back side of the "scute" on the right. McNairy County, Tennessee Late Cretaceous Coon Creek member of the Ripley Formation Measures about an inch each. EDIT: Forgot to add third photo... Edited June 14, 2015 by TNCollector Link to comment Share on other sites More sharing options...
TNCollector Posted June 14, 2015 Author Share Posted June 14, 2015 Here are some more angles. Link to comment Share on other sites More sharing options...
Troodon Posted June 15, 2015 Share Posted June 15, 2015 Interesting finds. Can you take a straight in shot of the "hadro tooth" enamel and back. The oblique angles don't give a good view of those surfaces. Not sure what to say about the other finds, hopefully someone will have an answer. Link to comment Share on other sites More sharing options...
TNCollector Posted June 15, 2015 Author Share Posted June 15, 2015 Sure, ignore the fact that I took these pictures on toilet paper... The enamel is definitely still there. Link to comment Share on other sites More sharing options...
Herb Posted June 15, 2015 Share Posted June 15, 2015 There are several species found in the Ripley. "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
TNCollector Posted June 15, 2015 Author Share Posted June 15, 2015 There are several species found in the Ripley. Are you referring to the "croc scutes"? Link to comment Share on other sites More sharing options...
Troodon Posted June 15, 2015 Share Posted June 15, 2015 Great background for contrast. I can see the enamel and agree sure looks like hadro. Good find despite being a fragment. Link to comment Share on other sites More sharing options...
Herb Posted June 15, 2015 Share Posted June 15, 2015 Yes ,http://www.deq.state.ms.us/mdeq.nsf/pdf/Geology_Volume4Number1September1983/$File/Vol_4_1.pdf?OpenElementhttp://www.deq.state.ms.us/mdeq.nsf/pdf/Geology_Volume4Number1September1983/$File/Vol_4_1.pdf?OpenElement here is a paper on it, "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
ZiggieCie Posted June 15, 2015 Share Posted June 15, 2015 Link to comment Share on other sites More sharing options...
TNCollector Posted June 15, 2015 Author Share Posted June 15, 2015 Great background for contrast. I can see the enamel and agree sure looks like hadro. Good find despite being a fragment. Yes I found the contrast to be perfect. Thanks for the ID! This is my first Eastern USA dino tooth, so i am really excited about it. Yes ,http://www.deq.state.ms.us/mdeq.nsf/pdf/Geology_Volume4Number1September1983/$File/Vol_4_1.pdf?OpenElement http://www.deq.state.ms.us/mdeq.nsf/pdf/Geology_Volume4Number1September1983/$File/Vol_4_1.pdf?OpenElement here is a paper on it, Thanks Herb, I am going to read through this and see what I can find. I was only at this site for about 30 minutes, so this might be an interesting find if it turns out to be croc, because as far as I know, Coon Creek is not very vertebrate heavy. Link to comment Share on other sites More sharing options...
jpc Posted June 15, 2015 Share Posted June 15, 2015 (edited) Nice little hardosaur tooth. The others are ceretainly not croc scutes. I see the negative impressions of small Cretaceous crabs. I can't think of the genus now, maybe Necrocarcinus. MB? edit: Nope, not Necrocarcinus, but Dromiopsis. Edited June 15, 2015 by jpc Link to comment Share on other sites More sharing options...
abyssunder Posted June 15, 2015 Share Posted June 15, 2015 Internal molds of crabs carapace -for the second two " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
TNCollector Posted June 15, 2015 Author Share Posted June 15, 2015 @jpc, abyssunder That makes sense, this would be a first for internal crab carapace mold for me. I will have to do some research on Dromiopsis. Is that a known species from Coon Creek? Link to comment Share on other sites More sharing options...
FossilDAWG Posted June 15, 2015 Share Posted June 15, 2015 I'm thinking Tetracarcinus, not Dromiopsis. I don't think Dromiopsis has ever been found in the Coon Creek Formation. Don Link to comment Share on other sites More sharing options...
rod Posted June 16, 2015 Share Posted June 16, 2015 The first appears to be most definitely a partial Hadrosaur tooth. The second image is of disarticulate crab abdomens - most likely Dakoticancridae. Your view is showing the inside portion of the cast. We've collected lots of these from the Coon Creek deposits. The last image is an external cast of a crab carapace - again most likely Dakoticancridae. It would be tough for me to go further into species identification without having it in hand. - ROD Link to comment Share on other sites More sharing options...
FossilDAWG Posted June 16, 2015 Share Posted June 16, 2015 Hey Rod, I haven't seen you post in quite a while. Nice to have you back! Don 1 Link to comment Share on other sites More sharing options...
TNCollector Posted June 16, 2015 Author Share Posted June 16, 2015 Thanks for all the help guys. I will label them as Dakoticancridae for now, as after reading up on it, it seems like the most likely candidate for this fossil. Link to comment Share on other sites More sharing options...
Tennessees Pride Posted November 27, 2015 Share Posted November 27, 2015 TNCollector, that tooth sure looks duckbillish to me too. Congratulations on a most superb find! --- Joshua tennesseespride@gmail.com Link to comment Share on other sites More sharing options...
TNCollector Posted November 27, 2015 Author Share Posted November 27, 2015 Thanks! A few trips later I found one in perfect condition! My best find from that site by far. Link to comment Share on other sites More sharing options...
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