MarcoSr Posted June 1, 2014 Share Posted June 1, 2014 (edited) I want to thank Jamie for sending me Cretaceous, Cenomanian matrix from the Graneros Shale of Kansas which contained the specimens in this post. This matrix had a good density of shark, ray and fish teeth. Specimens ranged in size from .4mm to 10mm. I am posting below pictures of a small number of the nicer and more unusual specimens which I found. If you place your cursor on a JPEG image you will see the file name which will have the specimen id as best that I can determine and the specimen size. Breaking down the Graneros Shale required multiple freezing/boiling vinegar cycles. The wide diversity of micros in many formations is one of the reasons that I am an avid micro tooth collector. If anyone has or can collect good matrix with shark, ray, and fish micros please send me a PM. I really could use id help below. There is still a lot of flux with some of the major Cretaceous genera and unfortunately I can’t always get access to the latest papers. Shark teeth: Carcharias (Note there are multiple species of Carcharias present): Meristodonoides: Polyacrodus: Squalicorax (Note there are multiple species of Squalicorax present. Squalicorax is still very poorly described and needs a lot of further study): Continued in next reply. Marco Sr. Edited June 2, 2014 by MarcoSr 1 "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...
MarcoSr Posted June 1, 2014 Author Share Posted June 1, 2014 (edited) Some shark teeth that I need Id help.: I believe that these are Carcharias. The deep, prominent nutrient groves eliminate several genus that look very similar. Some of the teeth are smooth with no striations on the labial face and others have short striations by the root like the first specimen. The second specimen has more prominent striations. Some ray teeth: Cretomanta: Continued in next reply. Marco Sr. Edited June 2, 2014 by MarcoSr 1 "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...
MarcoSr Posted June 1, 2014 Author Share Posted June 1, 2014 (edited) Rhinobatos: Some Fish Teeth: Aspidorhynchidae: Enchodus: Xiphactinus: Other Fish Teeth: Fish Jaw Fragment: Marco Sr. Edited June 2, 2014 by MarcoSr 1 1 "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...
Nandomas Posted June 1, 2014 Share Posted June 1, 2014 I want them too!!! :) Erosion... will be my epitaph! http://www.paleonature.org/ https://fossilnews.org/ Link to comment Share on other sites More sharing options...
fossilized6s Posted June 1, 2014 Share Posted June 1, 2014 Nice colors in this stuff! Here's a link that may help you with some IDs. http://users.telenet.be/sharkteethcollection/sharkteeth%20list%20totaal/sharkteeth%20list.htm ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Al Dente Posted June 1, 2014 Share Posted June 1, 2014 Nice preservation on these teeth. I think your last Squalicorax is unusual. It looks like it has complex serrations. I've seen this with S. pristodontus but this tooth isn't pristodontus. Link to comment Share on other sites More sharing options...
jcbshark Posted June 1, 2014 Share Posted June 1, 2014 Beautiful specimens you found there Marco, a lot of those teeth are pretty unusual looking. Thanks for sharing! 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...
MarcoSr Posted June 2, 2014 Author Share Posted June 2, 2014 Nice colors in this stuff! Here's a link that may help you with some IDs. http://users.telenet.be/sharkteethcollection/sharkteeth%20list%20totaal/sharkteeth%20list.htm Charlie Thank you for the link. That is the website of my good friend Patrick DeCock from Belgium. We have sent each other matrix for years. I have a good number of the species shown from matrix from Morocco that Patrick sent to me. 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...
MarcoSr Posted June 2, 2014 Author Share Posted June 2, 2014 Nice preservation on these teeth. I think your last Squalicorax is unusual. It looks like it has complex serrations. I've seen this with S. pristodontus but this tooth isn't pristodontus. Eric For a tooth from the Cenomanian, I also thought that the serrations were pretty complex. I am seeing all kinds of serration patterns in the Squalicorax from both the Graneros Shale and Lincoln Limestone of Kansas. 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...
MarcoSr Posted June 2, 2014 Author Share Posted June 2, 2014 Beautiful specimens you found there Marco, a lot of those teeth are pretty unusual looking. Thanks for sharing! Jeff Cretaceous teeth can look quite different from the teeth from Florida. Too bad you don't have any Cretaceous formations in Florida. 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...
MarcoSr Posted June 2, 2014 Author Share Posted June 2, 2014 I want them too!!! :) You need to hook up with one of the collectors from Kansas and get some matrix from them. However most of the limestone, shale etc. is a bear to break down at home to get to the teeth. 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...
busyeagle Posted June 2, 2014 Share Posted June 2, 2014 Glad you got such neat stuff to make it worth all of that effort! Link to comment Share on other sites More sharing options...
MarcoSr Posted June 2, 2014 Author Share Posted June 2, 2014 Glad you got such neat stuff to make it worth all of that effort! Kyle It definitely is a lot of work to break the matrix down and then search it. Luckily I enjoy doing this. 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...
missingdigits Posted January 7, 2017 Share Posted January 7, 2017 I just realized something. If the polyacrodus i.d. is accurate- and I think it is- that would be the first occurrence of it in the Graneros and one of the few in Kansas. The only other two I know of are from the Codell Sandstone and Kiowa Formation. If I am right that is pretty cool! Of course, I could be totally wrong... Link to comment Share on other sites More sharing options...
MarcoSr Posted January 7, 2017 Author Share Posted January 7, 2017 55 minutes ago, missingdigits said: I just realized something. If the polyacrodus i.d. is accurate- and I think it is- that would be the first occurrence of it in the Graneros and one of the few in Kansas. The only other two I know of are from the Codell Sandstone and Kiowa Formation. If I am right that is pretty cool! Of course, I could be totally wrong... Jamie I think the id is accurate but I don't see many Polyacrodus so I'm not 100% sure. I hope all is well. Thank you again for the matrix. I miss searching the matrix from Kansas. A lot of it was a challenge to break down. I've spent most of the last 8 months looking at terrestrial Oligocene matrix from my sons' ranch in Nebraska which I'll finish up this month and really miss the marine matrix. Luckily I've got a bunch of marine matrix in waiting. 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...
TNCollector Posted January 7, 2017 Share Posted January 7, 2017 Fabulous! I love the Meristodonoides teeth! Link to comment Share on other sites More sharing options...
ynot Posted January 7, 2017 Share Posted January 7, 2017 Nice grouping Marco!! Do not know how I missed this one. Have You done any new post on the Nebraska micros? Tony Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
MarcoSr Posted January 8, 2017 Author Share Posted January 8, 2017 19 hours ago, TNCollector said: Fabulous! I love the Meristodonoides teeth! Thank you. This fauna has a nice shark tooth diversity. 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...
MarcoSr Posted January 8, 2017 Author Share Posted January 8, 2017 19 hours ago, ynot said: Nice grouping Marco!! Do not know how I missed this one. Have You done any new post on the Nebraska micros? Tony Tony No, I haven't posted the new micros. I'm so backed up with matrix that I may not have the time to take individual pictures. I may only post some ranch pictures and group pictures of the micros. 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...
RandyB Posted January 8, 2017 Share Posted January 8, 2017 Very cool specimens, thanks for sharing Link to comment Share on other sites More sharing options...
FossilDudeCO Posted January 8, 2017 Share Posted January 8, 2017 I don't know how I missed this one either. GREAT stuff there! Link to comment Share on other sites More sharing options...
MarcoSr Posted January 8, 2017 Author Share Posted January 8, 2017 6 hours ago, RandyB said: Very cool specimens, thanks for sharing 4 hours ago, FossilDudeCO said: I don't know how I missed this one either. GREAT stuff there! Thank you. Kansas has some really good Cretaceous formations with lots of nice micros. 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...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now