svcgoat Posted October 5, 2023 Share Posted October 5, 2023 Here are things I collected in Judith River this summer that I can't identify. @jpc any help? 3 Link to comment Share on other sites More sharing options...
svcgoat Posted October 5, 2023 Author Share Posted October 5, 2023 The last one I think is a root but unsure Link to comment Share on other sites More sharing options...
ThePhysicist Posted October 5, 2023 Share Posted October 5, 2023 1. I think I see oval, uniform aveoli - a fish jaw 2. A shark tooth, Paraorthacodus, didn't realize they could be found in JRF 3/4. Pet wood 1 "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
svcgoat Posted October 5, 2023 Author Share Posted October 5, 2023 12 minutes ago, ThePhysicist said: 1. I think I see oval, uniform aveoli - a fish jaw 2. A shark tooth, Paraorthacodus, didn't realize they could be found in JRF 3/4. Pet wood The shark tooth, Yeah I found it on a hill. I wasn't sure if 1. Is a very warm theropods tooth because it has faint serrations. Any way to know what kind of pet wood Link to comment Share on other sites More sharing options...
svcgoat Posted October 5, 2023 Author Share Posted October 5, 2023 13 minutes ago, ThePhysicist said: 1. I think I see oval, uniform aveoli - a fish jaw 2. A shark tooth, Paraorthacodus, didn't realize they could be found in JRF 3/4. Pet wood I also really like the color of the shark tooth 1 Link to comment Share on other sites More sharing options...
ThePhysicist Posted October 5, 2023 Share Posted October 5, 2023 3 minutes ago, svcgoat said: Any way to know what kind of pet wood Not to my knowledge "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
jpc Posted October 5, 2023 Share Posted October 5, 2023 11 hours ago, svcgoat said: Any way to know what kind of pet wood Other than some distinctive forms (palm) petrified wood needs to be thin sectioned in three dimensions and studied under the microscope to be able to ID it. I get fish jaw on the first one as well, but a closer up shot would be good. Nice to see a shark tooth from the Judith River. I know the Mesa Verde here in WY (also Campanian) has shark teeth, but a JR shark tooth is news to me. Link to comment Share on other sites More sharing options...
trilobites_are_awesome Posted October 5, 2023 Share Posted October 5, 2023 Love that shark tooth. Cheers! James Link to comment Share on other sites More sharing options...
svcgoat Posted October 5, 2023 Author Share Posted October 5, 2023 @jpc the things I found near the shark tooth are a very small Hadrosaur spitter and that fish jaw/tooth. If shark teeth from JRF are rare I might want to have some look at it Link to comment Share on other sites More sharing options...
svcgoat Posted October 5, 2023 Author Share Posted October 5, 2023 It's possible that there was bear paw overlay I'll check the county Link to comment Share on other sites More sharing options...
jpc Posted October 5, 2023 Share Posted October 5, 2023 I am not stating for a fact that they are rare in the JRF. I am not terribly familiar with the shark fauna of this Fm. The same aged beds in WY have shark teeth, whereas the Lance / Hell Creek do not (or rarely). 1 Link to comment Share on other sites More sharing options...
svcgoat Posted October 6, 2023 Author Share Posted October 6, 2023 It was on the border of Valley and Phillips county for the shark tooth Link to comment Share on other sites More sharing options...
jpc Posted October 6, 2023 Share Posted October 6, 2023 (edited) Tis is paywalled, but it seems there is a whole paper by shark specialist Gerard Case on the topic. If you can find it, it will help. Do any of you shark folks have a pdf of this available? A new Selachian Fauna from the Judith River Formation (Campanian) of Montana Case, Gerard R. Palaeontographica Abteilung A Band A160 Lieferung 1-6 (1978), p. 176 - 205 published: Jan 1, 1978 BibTeX file Edited October 6, 2023 by jpc Link to comment Share on other sites More sharing options...
MuseumofBioNotreDame Posted October 6, 2023 Share Posted October 6, 2023 @jpc I think that this may be the article you're looking for Case1987blores.pdf Link to comment Share on other sites More sharing options...
svcgoat Posted October 6, 2023 Author Share Posted October 6, 2023 Thank you hypotodus grandis looks like a close match Link to comment Share on other sites More sharing options...
ThePhysicist Posted October 8, 2023 Share Posted October 8, 2023 On 10/6/2023 at 2:00 PM, svcgoat said: hypotodus grandis looks like a close match It's not Hypotodus, note there's no nutrient groove, the root is not bilobate, etc. It's Paraorthacodus. ^ http://www.elasmo.com/frameMe.html?file=genera/cretaceous/paraorthacodus.html&menu=bin/menu_genera-alt.html Hypotodus (2-6) ^ Case 1987 1 "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
svcgoat Posted October 9, 2023 Author Share Posted October 9, 2023 7 hours ago, ThePhysicist said: It's not Hypotodus, note there's no nutrient groove, the root is not bilobate, etc. It's Paraorthacodus. ^ http://www.elasmo.com/frameMe.html?file=genera/cretaceous/paraorthacodus.html&menu=bin/menu_genera-alt.html Hypotodus (2-6) ^ Case 1987 Thank you Link to comment Share on other sites More sharing options...
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