North Guy Posted June 26, 2011 Share Posted June 26, 2011 Hello. My daughter and I just returned home from our trip to the Holmdel area for some shark tooth hunting and we need your help. We found this jaw bone(s) and have no idea what it is from. It looks like there are tusks, which have broken off, at the the front of the jaw. I'm thinking this the lower jaw and there is an area at the front where these two pieces may have been attached (I tried to show that in the third picture), but that would have made for a very narrow chin. I've added a few pictures so please let me know if you have questions that will help you identify the jaw bone. Thank you Link to comment Share on other sites More sharing options...
Auspex Posted June 26, 2011 Share Posted June 26, 2011 Rodent, for sure; very like a squirrel, but it seems too large. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
obsessed1 Posted June 26, 2011 Share Posted June 26, 2011 Possibly groundhog. Link to comment Share on other sites More sharing options...
edd Posted June 26, 2011 Share Posted June 26, 2011 Not a fossil though " We're all puppets, I'm just a puppet who can see the strings. " Link to comment Share on other sites More sharing options...
Texas-Tunnel Rat Posted August 9, 2011 Share Posted August 9, 2011 Those are Rodent Im thinking Muskrat or Groundhog, they are too large for Ground Squirrel. I wanted to say Rat or Rabbit but the back teeth sructure is different. I have one that I collected same shape and everything just different back teeth, mine are leaf shapped and I know that it Rodent. If you want check to see if the replacement teeth are still inside the jaw (ONLY IF YOU ARE COMFTERABLE WITH IT, MINE ALREADY HAD IT ROTTING AWAY DONT RUIN SPECIMENS) Still nice specimen to learn about the A&P of Rodents. PUBLICATIONS Dallas Paleontology Society Occasional Papers Vol. 9 2011 "Pennsylvanian Stratigraphy and Paleoecology of Outcrops in Jacksboro, Texas" Author Texas Paleontology Society Feb, 2011 "Index Fossils and You" A primer on how to utilize fossils to assist in relative age dating strata" Author Quotes "Beer, Bacon, and Bivalves!" "Say NO to illegal fossil buying / selling" "They belong in a museum." Education Associates of Science - 2011 Bachelors of Science (Geology & Biology) - 2012 est. Link to comment Share on other sites More sharing options...
jpc Posted August 10, 2011 Share Posted August 10, 2011 very definetly rodent lower jaws. The "tusks" are its incisors... its gnawing teeth. All rodents have them. Link to comment Share on other sites More sharing options...
Texas-Tunnel Rat Posted August 10, 2011 Share Posted August 10, 2011 very definetly rodent lower jaws. The "tusks" are its incisors... its gnawing teeth. All rodents have them. Now do they have replacement incisors in their jawbone? PUBLICATIONS Dallas Paleontology Society Occasional Papers Vol. 9 2011 "Pennsylvanian Stratigraphy and Paleoecology of Outcrops in Jacksboro, Texas" Author Texas Paleontology Society Feb, 2011 "Index Fossils and You" A primer on how to utilize fossils to assist in relative age dating strata" Author Quotes "Beer, Bacon, and Bivalves!" "Say NO to illegal fossil buying / selling" "They belong in a museum." Education Associates of Science - 2011 Bachelors of Science (Geology & Biology) - 2012 est. Link to comment Share on other sites More sharing options...
Auspex Posted August 10, 2011 Share Posted August 10, 2011 Now do they have replacement incisors in their jawbone? A rodent's incisors grow continuously, throughout their very toothy lives. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Texas-Tunnel Rat Posted August 10, 2011 Share Posted August 10, 2011 A rodent's incisors grow continuously, throughout their very toothy lives. Gotcha! just thought I had a really odd rodent PUBLICATIONS Dallas Paleontology Society Occasional Papers Vol. 9 2011 "Pennsylvanian Stratigraphy and Paleoecology of Outcrops in Jacksboro, Texas" Author Texas Paleontology Society Feb, 2011 "Index Fossils and You" A primer on how to utilize fossils to assist in relative age dating strata" Author Quotes "Beer, Bacon, and Bivalves!" "Say NO to illegal fossil buying / selling" "They belong in a museum." Education Associates of Science - 2011 Bachelors of Science (Geology & Biology) - 2012 est. Link to comment Share on other sites More sharing options...
Texas-Tunnel Rat Posted August 11, 2011 Share Posted August 11, 2011 Hey folks, not sure if anyone is reading this. I am sorry to say that I have misdiagnoised my last statment about the jaw bone I was compairing to the ones presented. I contacted my local veternarian and got it reconfirmed that it was not traditional rodent but it was either determined to be that of either a possum or a juvinile feline, proably a stray. So once again I am sorry for possibly leading in the wrong way. PUBLICATIONS Dallas Paleontology Society Occasional Papers Vol. 9 2011 "Pennsylvanian Stratigraphy and Paleoecology of Outcrops in Jacksboro, Texas" Author Texas Paleontology Society Feb, 2011 "Index Fossils and You" A primer on how to utilize fossils to assist in relative age dating strata" Author Quotes "Beer, Bacon, and Bivalves!" "Say NO to illegal fossil buying / selling" "They belong in a museum." Education Associates of Science - 2011 Bachelors of Science (Geology & Biology) - 2012 est. Link to comment Share on other sites More sharing options...
Biscuit Posted September 9, 2011 Share Posted September 9, 2011 Groundhog or beaver jaw, google images should be able to help you make the final call. Link to comment Share on other sites More sharing options...
Sharkbyte Posted September 9, 2011 Share Posted September 9, 2011 I believe it might be a Woodchuck aka Groundhog Jawbone. Looks a lot like a squirrel but a little larger and the Molars look to be a dead ringer. By the way, welcome to the Forum. "A journey of a thousand miles begins with a single step." - Confucius Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted September 9, 2011 Share Posted September 9, 2011 Hey folks, not sure if anyone is reading this. I am sorry to say that I have misdiagnoised my last statment about the jaw bone I was compairing to the ones presented. I contacted my local veternarian and got it reconfirmed that it was not traditional rodent but it was either determined to be that of either a possum or a juvinile feline, proably a stray. So once again I am sorry for possibly leading in the wrong way. Your local vet couldn't tell the different between opossum and feline dentition??? Might want to take your pet to another vet... www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
edd Posted September 9, 2011 Share Posted September 9, 2011 Hahahhaha, vets these days... " We're all puppets, I'm just a puppet who can see the strings. " Link to comment Share on other sites More sharing options...
ynot Posted March 4, 2016 Share Posted March 4, 2016 Hey folks, not sure if anyone is reading this. I am sorry to say that I have misdiagnoised my last statment about the jaw bone I was compairing to the ones presented. I contacted my local veternarian and got it reconfirmed that it was not traditional rodent but it was either determined to be that of either a possum or a juvinile feline, proably a stray. So once again I am sorry for possibly leading in the wrong way. Your local vet couldn't tell the different between opossum and feline dentition??? Might want to take your pet to another vet... Worse than that --That veterinarian can not tell the difference between a felon and a rodent-- Who is chasing Who? Definitely need a new vet.! 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...
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