frankh8147 Posted May 31, 2018 Share Posted May 31, 2018 Hello everyone! I hoping to get some clarification to help differentiate Cretaceous crocodile teeth from Mosasaur teeth. These two were found in the New Jersey Cretaceous. The first one is a shade under 1/2 an inch. It is conical and doesn't appear to have any cutting edges (but they could be worn off). I was leaning towards Mosasaur tooth on the second one because of the size of 8/10ths' of an inch, but it is slightly more slender than my other Mosasaur teeth, very conical and the root looked a bit different. It appears to have one very weak cutting edge but I'm not positive. It was pointed out to me that crocodile teeth roots tend to have concentric rings so I was wondering what everyone thought regarding these guys. Thanks! @Plax @josephstrizhak Link to comment Share on other sites More sharing options...
frankh8147 Posted May 31, 2018 Author Share Posted May 31, 2018 Tooth 2.. Link to comment Share on other sites More sharing options...
Plax Posted May 31, 2018 Share Posted May 31, 2018 tooth #2 looks like mosasaur to me. First tooth is very worn and am note sure that very worn mosasaur teeth wouldn't expose concentric rings like croc teeth have. Guess someone with a lot of mosasaur teeth could grind the hollow base off one to compare. If I'm looking at Mosasaurus hoffmani versus Deinosuchus rugosus teeth the difference in the basal structure is readily apparent. Wish I had specimens here at work so I could show a pic. Link to comment Share on other sites More sharing options...
The Jersey Devil Posted May 31, 2018 Share Posted May 31, 2018 I agree with Plax; the second tooth is Mosasaur. The first one is either crocodile or mosasaur. “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...
non-remanié Posted June 1, 2018 Share Posted June 1, 2018 The extra pictures do confirm that number 2 is mosasaur. ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
frankh8147 Posted June 1, 2018 Author Share Posted June 1, 2018 11 hours ago, non-remanié said: The extra pictures do confirm that number 2 is mosasaur. Thanks Steve! That was the one I had labeled Mosasaur but wanted to show you to confirm so we can check that one off the list. Link to comment Share on other sites More sharing options...
JarrodB Posted June 4, 2018 Share Posted June 4, 2018 I agree with tooth one being croc and # 2 mosasaur. Link to comment Share on other sites More sharing options...
frankh8147 Posted June 4, 2018 Author Share Posted June 4, 2018 3 hours ago, JarrodB said: I agree with tooth one being croc and # 2 mosasaur. Thanks Jarrod! Link to comment Share on other sites More sharing options...
Harry Pristis Posted June 4, 2018 Share Posted June 4, 2018 For comparison: http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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