John S. Posted September 1, 2018 Share Posted September 1, 2018 Found a big tooth in nice condition today in north central Texas. Late Cretaceous, 86-90 mya North Central Texas Eagle Ford Group / Ozan Formation Link to comment Share on other sites More sharing options...
Dan 1000 Posted September 1, 2018 Share Posted September 1, 2018 Beautiful tooth! Link to comment Share on other sites More sharing options...
ynot Posted September 1, 2018 Share Posted September 1, 2018 Pritty! 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...
DPS Ammonite Posted September 1, 2018 Share Posted September 1, 2018 By the ages you mentioned, is this from the upper part of the Arcadia Park Formation to the Atco Formation where shark teeth are common? Also, where were they found? My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
jcbshark Posted September 1, 2018 Share Posted September 1, 2018 That’s a real beauty, congrats 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...
Gizmo Posted September 1, 2018 Share Posted September 1, 2018 That's a nice one, congrats! Link to comment Share on other sites More sharing options...
Miocene_Mason Posted September 1, 2018 Share Posted September 1, 2018 Nice! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Heteromorph Posted September 1, 2018 Share Posted September 1, 2018 Spectacular tooth! It must have been a monster shark. Link to comment Share on other sites More sharing options...
John S. Posted September 1, 2018 Author Share Posted September 1, 2018 8 hours ago, DPS Ammonite said: By the ages you mentioned, is this from the upper part of the Arcadia Park Formation to the Atco Formation where shark teeth are common? Also, where were they found? That sounds right. This is in the Dallas area. Common depending on the creek. The monsters are pretty rare, esp the unbroken ones. North Central Texas Eagle Ford Group / Ozan Formation Link to comment Share on other sites More sharing options...
John S. Posted September 1, 2018 Author Share Posted September 1, 2018 13 minutes ago, Heteromorph said: Spectacular tooth! It must have been a monster shark. Yes likely 20-25 feet North Central Texas Eagle Ford Group / Ozan Formation Link to comment Share on other sites More sharing options...
PaleoNoel Posted September 1, 2018 Share Posted September 1, 2018 Awesome tooth! Link to comment Share on other sites More sharing options...
RyanNREMTP Posted September 2, 2018 Share Posted September 2, 2018 Super jelly. Link to comment Share on other sites More sharing options...
emtreloa Posted September 3, 2018 Share Posted September 3, 2018 So gorgeous! Link to comment Share on other sites More sharing options...
Ludwigia Posted September 3, 2018 Share Posted September 3, 2018 Lovely! Species? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
TNCollector Posted September 4, 2018 Share Posted September 4, 2018 On 9/1/2018 at 11:30 AM, John S. said: Yes likely 20-25 feet How did you make such a size estimate based off of this tooth. It looks like a Cretoxyrhina tooth, which was thought to not exceed greater than 20 ft. Link to comment Share on other sites More sharing options...
John S. Posted September 4, 2018 Author Share Posted September 4, 2018 1 hour ago, TNCollector said: How did you make such a size estimate based off of this tooth. It looks like a Cretoxyrhina tooth, which was thought to not exceed greater than 20 ft. I was going off of Wikipedia. Says around 23 ft North Central Texas Eagle Ford Group / Ozan Formation Link to comment Share on other sites More sharing options...
Al Dente Posted September 4, 2018 Share Posted September 4, 2018 13 hours ago, TNCollector said: How did you make such a size estimate based off of this tooth. It looks like a Cretoxyrhina tooth, which was thought to not exceed greater than 20 ft. I’m not very familiar with Cretoxyrhina teeth. Do they have lingual folds like this tooth has? Link to comment Share on other sites More sharing options...
The Jersey Devil Posted September 4, 2018 Share Posted September 4, 2018 Great tooth. Could it be Leptostyrax? “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
JarrodB Posted September 8, 2018 Share Posted September 8, 2018 Nice one Link to comment Share on other sites More sharing options...
TNCollector Posted September 8, 2018 Share Posted September 8, 2018 On 9/4/2018 at 10:29 AM, The Jersey Devil said: Great tooth. Could it be Leptostyrax? It has no cusps or any sign of cusps that it used to have. Leptostyrax teeth ususally have very pronounced cusps. On 9/4/2018 at 4:46 AM, Al Dente said: I’m not very familiar with Cretoxyrhina teeth. Do they have lingual folds like this tooth has? Yes they do indeed. C. mantelli teeth are not uncommon in Kansas and have been found all throughout Western Interior Seaway deposits. @John S. Also I forgot to congratulate you on this find. That is a huge tooth for a Cretacous shark. My biggest is a Scapanorhynchus texanus tooth measuring about 2 and 3/8 inches. Link to comment Share on other sites More sharing options...
Archie Posted September 8, 2018 Share Posted September 8, 2018 Thats gorgeous congratulations! Link to comment Share on other sites More sharing options...
erose Posted September 8, 2018 Share Posted September 8, 2018 It's a beaut! Link to comment Share on other sites More sharing options...
The Jersey Devil Posted September 9, 2018 Share Posted September 9, 2018 4 hours ago, TNCollector said: It has no cusps or any sign of cusps that it used to have. Leptostyrax teeth ususally have very pronounced cusps. Yes they do indeed. C. mantelli teeth are not uncommon in Kansas and have been found all throughout Western Interior Seaway deposits. @John S. Also I forgot to congratulate you on this find. That is a huge tooth for a Cretacous shark. My biggest is a Scapanorhynchus texanus tooth measuring about 2 and 3/8 inches. I know they have cusplets. This tooth might have not had them, but since there is no occlusal view shown, I don't know if you can really be sure if cusplets used to be there or not. I never knew Scapanorhynchus got that large, I always thought the max (at least in NJ) was a little over 2". Do you happen to have any pics of it? Joseph “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
John S. Posted September 9, 2018 Author Share Posted September 9, 2018 Thanks guys, no cusplets were ever present btw. North Central Texas Eagle Ford Group / Ozan Formation Link to comment Share on other sites More sharing options...
Al Dente Posted September 9, 2018 Share Posted September 9, 2018 I’ve done a little more research on Cretoxyrhina and I’m convinced this is not one. I can’t find any evidence that they have lingual folds in the publications I’ve read. Cappetta says they do not reach the Campanian. Isn’t the Ozan Campanian? This might be Scapanorhynchus with strange root. Link to comment Share on other sites More sharing options...
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