StevenJD Posted July 17, 2016 Share Posted July 17, 2016 (edited) From the tip of the root ( seems it may be longer, going further in the rock ) to the tip of the crown is a little over 2 1/4 inches. Dallas County, Atco Formation What say the experts? Edited July 17, 2016 by StevenJDennis Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 ... Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 (edited) ... Edited July 17, 2016 by StevenJDennis Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 ... Link to comment Share on other sites More sharing options...
PaleoWilliam Posted July 17, 2016 Share Posted July 17, 2016 Leptostyrax? Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 in hand Link to comment Share on other sites More sharing options...
finderskeepers Posted July 17, 2016 Share Posted July 17, 2016 (edited) Wow... awesome tooth. Extinct Mackerel Shark early to late Cretaceous Protolamna borodini previously Protolamna sokolovi maybe? I'm going by the thickness of that root and the way the cusps point. Edited July 17, 2016 by finderskeepers Link to comment Share on other sites More sharing options...
fossilselachian Posted July 17, 2016 Share Posted July 17, 2016 With a size exceeding 2", this size greatly exceeds that of Protolamna which would would not likely exceed 1" in length. Leptostyrax teeth can approach 2" in length and do exhibit the longitudinal ridges at the crown foot as does the subject tooth. However, the lateral cusplets are usually more "fang like" on Leptostyrax. Another species to consider is Cretodus which can reach 2.5" in size. Just an alternate suggestion. 6 Link to comment Share on other sites More sharing options...
JarrodB Posted July 17, 2016 Share Posted July 17, 2016 Wow that's nice. I'm not an expert but I would say Cretodus. Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 17, 2016 Share Posted July 17, 2016 Can't help with ID, but man, that is a wicked looking tooth, Steven! Thanks for showing us. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
PaleoWilliam Posted July 17, 2016 Share Posted July 17, 2016 With a size exceeding 2", this size greatly exceeds that of Protolamna which would would not likely exceed 1" in length. Leptostyrax teeth can approach 2" in length and do exhibit the longitudinal ridges at the crown foot as does the subject tooth. However, the lateral cusplets are usually more "fang like" on Leptostyrax. Another species to consider is Cretodus which can reach 2.5" in size. Just an alternate suggestion. My first thought was Cretodus but the shape confused me. Thanks for the info. Link to comment Share on other sites More sharing options...
ynot Posted July 17, 2016 Share Posted July 17, 2016 Like the tooth. Please leave it in the matrix! Tony Link to comment Share on other sites More sharing options...
finderskeepers Posted July 17, 2016 Share Posted July 17, 2016 (edited) Cretodus seems more likely. Thank you fossilselacian. Do you know of any books that are really good for cretaceous shark fossil identification? I agree with Tony as well. It is well displayed in its natural matrix. Edited July 17, 2016 by finderskeepers Link to comment Share on other sites More sharing options...
MarcoSr Posted July 17, 2016 Share Posted July 17, 2016 Looks like a Cretodus Crassidens lower tooth. Marco Sr. 5 "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...
fossilselachian Posted July 17, 2016 Share Posted July 17, 2016 Cretodus seems more likely. Thank you fossilselacian. Do you know of any books that are really good for cretaceous shark fossil identification? One of the best books dedicated to the fossil shark teeth of Texas is "The Collector's Guide to Fossil Sharks and Rays from the Cretaceous of Texas". The authors are Bruce Welton and Roger Ferris. Welton is a well known fossil shark expert. It's a great reference for anyone with an interest in fossil sharks and a "must" for Texas Collectors. I believe the book is now back in print. 4 Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 (edited) Thank you everyone for the great info! Tony, yes I'm going to keep it in the matrix...think it looks pretty cool that way. The root could probably use a little cleaning though. Edited July 17, 2016 by StevenJDennis Link to comment Share on other sites More sharing options...
Mike from North Queensland Posted July 17, 2016 Share Posted July 17, 2016 Nice tooth and I am glad you are going to keep this one in the matrix for display. Use a stand so both side can be seen. As a word of warning I would not recommend the use of a grinder to trim the bottom if you are tempted as that would vibrate the tooth out and possibly crack the tooth. Mike D Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 Thanks for the tips Mike. I think the most I'll do to the tooth is use some water and a tooth brush to clean some of the matrix off the root. May not even do that. I'd hate to mess with it too much and have it break. Link to comment Share on other sites More sharing options...
caldigger Posted July 17, 2016 Share Posted July 17, 2016 Definitely a show piece, great find...now get out there and find the rest of the shark! lol Link to comment Share on other sites More sharing options...
StevenJD Posted July 17, 2016 Author Share Posted July 17, 2016 Definitely a show piece, great find...now get out there and find the rest of the shark! lol Thanks, definitely gunna try! haha Link to comment Share on other sites More sharing options...
sixgill pete Posted July 18, 2016 Share Posted July 18, 2016 Fantastic tooth. Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
sharko69 Posted July 18, 2016 Share Posted July 18, 2016 Beautiful Cretodus! Congratulations. Link to comment Share on other sites More sharing options...
StevenJD Posted July 18, 2016 Author Share Posted July 18, 2016 Thanks guys Fantastic tooth. Beautiful Cretodus! Congratulations. Link to comment Share on other sites More sharing options...
Khyssa Posted July 18, 2016 Share Posted July 18, 2016 Fantastic tooth made even better with the way it's positioned in the matrix! Kara 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