Past Hunter Posted March 30, 2016 Share Posted March 30, 2016 Let us see anything with a bite mark on it. "If you choose not to decide. You still have made a choice." - Rush Link to comment Share on other sites More sharing options...
thefossilkid Posted March 30, 2016 Share Posted March 30, 2016 Here's a meg with self inflicted bite marks. Jake. Link to comment Share on other sites More sharing options...
BobWill Posted March 30, 2016 Share Posted March 30, 2016 Good idea for a thread and cool teeth. Here are a couple of crinoid stems that look like they have been bitten. What do you think? This shows both sides of the same fossils. 1 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted March 30, 2016 Share Posted March 30, 2016 (edited) Nice crinoids Bob; they look bitten to me. Is there any evidence that the crinoids survived their injuries, healed themselves and continued to grow? Here's a good article about brachiopods that were bitten: Elliott, D. K., and S. D. Bounds. 1986. Causes of damage to brachiopods from the Middle Pennsylvanian Naco Formation, central Arizona. Lethaia 20:327–335. Edited March 30, 2016 by DPS Ammonite 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...
caldigger Posted March 30, 2016 Share Posted March 30, 2016 Here is a front and back view if you will of a cetacean rib with shark bite marks from Shark Tooth Hill in Calif. 1 Link to comment Share on other sites More sharing options...
BobWill Posted March 30, 2016 Share Posted March 30, 2016 Nice crinoids Bob; they look bitten to me. Is there any evidence that the crinoids survived their injuries, healed themselves and continued to grow? Here's a good article about brachiopods that were bitten: Elliott, D. K., and S. D. Bounds. 1986. Causes of damage to brachiopods from the Middle Pennsylvanian Naco Formation, central Arizona. Lethaia 20:327–335. Interesting question. I wouldn't know how to tell, but it got me wondering, do crinoid stems continue to grow larger after they're formed? Somewhere I got the idea that each section grew from the base of the calyx, one at a time. That could be very wrong. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted March 30, 2016 Share Posted March 30, 2016 Bob, I think that the crinoids did start to heal. Notice the rounded overgrowths next to the larger "scars." Crinoid stems are made of single calcite crystals which are brittle and would fracture and would not "flow" plastically and make rounded bulging areas near the injury. Compare yours to the pictures of crinoids with overgrowths that were injured by boring sponges. Photo from "Pennsylvania Fossils of North Texas" by McKinzie. 1 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...
Harry Pristis Posted March 30, 2016 Share Posted March 30, 2016 Here are some vertebrate bones with amphicyonid (bear-dog) bite marks: 1 1 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...
tooth_claw Posted March 30, 2016 Share Posted March 30, 2016 Termite damage on a kangaroo tibia(?), Kelly Hill cave, Kangaroo Island. Link to comment Share on other sites More sharing options...
Mediospirifer Posted March 30, 2016 Share Posted March 30, 2016 Here's a brachiopod that got nipped by something and healed itself. Nautiloids have been proposed as the likely culprits in this formation. Glyptorthis insculpta (Middle Ordovician, near Cincinnati, OH): I have a few more, but I'll stick with one. For more: LINK. I also have an impression of a Devonian Rhipidomella showing a similar scar. Link to comment Share on other sites More sharing options...
Terry Dactyll Posted March 30, 2016 Share Posted March 30, 2016 Heres the left humerus of a Somerset plesiosaur, and it shows a very characteristic bite mark. Plesiosaur bones were rather soft and you can see the plastic deformation to the bone caused by the bite. Top image RH side top edge.... 1 Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
JarrodB Posted March 30, 2016 Share Posted March 30, 2016 Mosasaur bone with shark feeding marks. Link to comment Share on other sites More sharing options...
Al Dente Posted March 30, 2016 Share Posted March 30, 2016 Here's a shark centrum that has an embedded shark tooth. 3 Link to comment Share on other sites More sharing options...
Past Hunter Posted March 30, 2016 Author Share Posted March 30, 2016 Bob, Any idea what might have bitten a crinoid. "If you choose not to decide. You still have made a choice." - Rush Link to comment Share on other sites More sharing options...
snolly50 Posted March 30, 2016 Share Posted March 30, 2016 (edited) Here are photos previously submitted as part of the "Oreodont Prep Series" under the Forum's "Fossil Preparation category." This topic chronicled the prep of the skull and jaw of Lucinda, an Oreodont. During the prep, two areas displaying paired puncture fractures were revealed. One set was found in the top of the skull, the second in the mandible. Discussion ensued as to the likely perpetrator, However, the true identity of the ravenous fiend remains the subject of speculation. Edit: Lucinda was a Merycoidodon gracilis. Here is a link to the original prep topic; Oreodont Prep Series - Fossil Preparation - The Fossil Forum Edited March 30, 2016 by snolly50 2 Human beings, who are almost unique in having the ability to learn from the experience of others, also are remarkable for their apparent disinclination to do so. - Douglas Adams, Last Chance to See Link to comment Share on other sites More sharing options...
frankh8147 Posted March 30, 2016 Share Posted March 30, 2016 Cool thread! Here are two from the New Jersey Cretaceous; an Enchodus jawbone with a big gash and a piece of chunkosaurus with feed marks. Link to comment Share on other sites More sharing options...
BobWill Posted March 30, 2016 Share Posted March 30, 2016 Bob, Any idea what might have bitten a crinoid. Don't know what. Don't even know why. Link to comment Share on other sites More sharing options...
caldigger Posted March 30, 2016 Share Posted March 30, 2016 (edited) Some creatures eat sea stars, why not a crinoid? Edited March 30, 2016 by caldigger Link to comment Share on other sites More sharing options...
Darktooth Posted March 30, 2016 Share Posted March 30, 2016 The vert with tooth embedded is pretty awesome I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
Harry Pristis Posted March 30, 2016 Share Posted March 30, 2016 (edited) Here are some more bones with bites: Edited March 30, 2016 by Harry Pristis 1 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...
Troodon Posted March 30, 2016 Share Posted March 30, 2016 Here is Ceratopsian skull with a hole on top of it that seems to have had some healing. No idea how it was was inflicted or if it was a predatory injury. 3 1 Link to comment Share on other sites More sharing options...
prem Posted March 30, 2016 Share Posted March 30, 2016 (edited) There is no guarantee, but I suspect that my Cambropallas telesto has a bite wound just behind the right side of its cephalon. There even seems to be a slight bulge in the cephalon just forward of the alleged wound: It seems consistent in both part and counterpart: Then again, this could all be a product of the forces this shell was put under during burial and fossilization. Of course, to bite a bug this big, you'd have to be a pretty big predator. I guess an Anomalocaris could fit the bill. ---Prem Edited March 30, 2016 by prem 1 Link to comment Share on other sites More sharing options...
piranha Posted March 30, 2016 Share Posted March 30, 2016 Here is an obvious example of a trilobite that suffered a non-lethal attack. Note the wound response of healed / malformed pleurae that occurred over the course of subsequent molts. figures from: Babcock, L.E. (1993) Trilobite malformations and the fossil record of behavioral asymmetry. Journal of Paleontology, 67(2):217-229 2 1 Link to comment Share on other sites More sharing options...
Northern Sharks Posted March 31, 2016 Share Posted March 31, 2016 I have a gallery of such things, but no additions in quite a while http://www.thefossilforum.com/index.php?/gallery/album/21-bite-damaged-bones/ 1 There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
Northern Sharks Posted March 31, 2016 Share Posted March 31, 2016 One more: http://www.thefossilforum.com/index.php?/gallery/image/100-carcharocles-chubutensis-munched/ 1 There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
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