Untitled Posted January 19, 2021 Share Posted January 19, 2021 1 hour ago, fossilsonwheels said: Upper and lower Heptranchias from the Oligocene of Poland. I think it is a rare enough genus to warrant inclusion here. Heptranchias is most definitely a scarce genus in the fossil record, awesome tooth! Link to comment Share on other sites More sharing options...
Untitled Posted January 19, 2021 Share Posted January 19, 2021 Not the rarest, but still extremely rare: juvenile Cardabiodon ricki Cenomanian Greenhorn Limestone Formation Lincoln Limestone Member Russell County, Kansas 3 Link to comment Share on other sites More sharing options...
Pixpaleosky Posted January 19, 2021 Share Posted January 19, 2021 Not extremely rare but not common where I used to go Isistius triangulus Miocene Bouches du Rhone, France Ginglymostoma sp Miocene Bouches du Rhone, France 6 Link to comment Share on other sites More sharing options...
Untitled Posted January 19, 2021 Share Posted January 19, 2021 7 hours ago, Pixpaleosky said: Not extremely rare but not common where I used to go Isistius triangulus Miocene Bouches du Rhone, France Ginglymostoma sp Miocene Bouches du Rhone, France Those Ginglymostoma teeth are really interesting to see from France! Very awesome finds. Best Regards Ben 2 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted February 2, 2021 Share Posted February 2, 2021 Here is a really cool one we just got from @Untitled. Very rare genus from a fantastic location known for deep sea sharks. A tooth from Squaliolus, the Pygmy Shark. This is one of the teeth that really make me want to get back into the classroom and talk sharks. Squaliolus schaubi Miocene Near Avignon Bonpas France 6 Link to comment Share on other sites More sharing options...
Notidanodon Posted February 2, 2021 Author Share Posted February 2, 2021 10 hours ago, fossilsonwheels said: Here is a really cool one we just got from @Untitled. Very rare genus from a fantastic location known for deep sea sharks. A tooth from Squaliolus, the Pygmy Shark. This is one of the teeth that really make me want to get back into the classroom and talk sharks. Squaliolus schaubi Miocene Near Avignon Bonpas France Sweet tooth! I’m trying to get some bonpas teeth at the moment 1 Link to comment Share on other sites More sharing options...
Untitled Posted March 12, 2021 Share Posted March 12, 2021 Factoring in locality, this is one of my rarest: Otodus megalodon (symphyseal) Miocene Cidolog West Java, Indonesia 3 2 Link to comment Share on other sites More sharing options...
Untitled Posted March 12, 2021 Share Posted March 12, 2021 Another tooth that’s up there in the rarity department: Undescribed Cardabiodontid species Albian Toolebuc Formation Near Richmond, Northwest Queensland Australia 3 Link to comment Share on other sites More sharing options...
caterpillar Posted March 12, 2021 Share Posted March 12, 2021 Mustelus biddlei from lower thanetian of southwest France 3 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
britishcanuk Posted March 13, 2021 Share Posted March 13, 2021 Here’s a pretty blue upper Carcharodon hubbelli/carcharias tooth from Lee Creek. Pretty rare I think. 3 1 Link to comment Share on other sites More sharing options...
Notidanodon Posted March 15, 2021 Author Share Posted March 15, 2021 @ThePhysicist talking about dwardius, the Cambridge locale strikes again 2 5 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 15, 2021 Share Posted March 15, 2021 4 hours ago, will stevenson said: @ThePhysicist talking about dwardius, the Cambridge locale strikes again Will- that is an awesome tooth ! Great addition to yoru collection Link to comment Share on other sites More sharing options...
Notidanodon Posted March 15, 2021 Author Share Posted March 15, 2021 3 minutes ago, fossilsonwheels said: Will- that is an awesome tooth ! Great addition to yoru collection Thanks Kurt only one ive seen from that locality, considering ive seen two paraisurus from there, quite happy to have it Link to comment Share on other sites More sharing options...
Macrophyseter Posted March 16, 2021 Share Posted March 16, 2021 Here's one from a rare locality! Otodus auriculatus from Togo. 2 2 If you're a fossil nut from Palos Verdes, San Pedro, Redondo Beach, or Torrance, feel free to shoot me a PM! Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 23, 2021 Share Posted March 23, 2021 Most of the teeth in our collection that I consider rare are Squaliformes. We just got this one. A really nice Cretaceous example of an extant genus. Centroscymnus sp Cretaceous Northumberland Frm Hornby Island BC 3 Link to comment Share on other sites More sharing options...
Huntlyfossils Posted April 28, 2021 Share Posted April 28, 2021 (edited) Johnlongia tooth Found in Fish mash material by my 11yo son Scale 5mmX5mm Albian Toolebuc Formation Richmond, Northwest Queensland Australia Edited April 28, 2021 by Huntlyfossils 2 2 Link to comment Share on other sites More sharing options...
Untitled Posted July 27, 2021 Share Posted July 27, 2021 This is a good thread, so figured I’d revive it. Thrinacodus gracia Early Carboniferous Serpukhovian Stage Zaborie Quarry Moscow Region, Russia 1 2 Link to comment Share on other sites More sharing options...
ThePhysicist Posted July 27, 2021 Share Posted July 27, 2021 My oldest shark teeth are from the Devonian, and these seem to be pretty rare: 1 3 "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...
britishcanuk Posted July 28, 2021 Share Posted July 28, 2021 Here’s a nice little Parotodus mangyshlakensis the Mangyshlak Peninsula, Kazakhstan. Not the rarest tooth , but not the most common either. 1 Link to comment Share on other sites More sharing options...
Creek - Don Posted July 28, 2021 Share Posted July 28, 2021 Paraisurus - extremely rare extinct genus of mackerel sharks. Found all three teeth near Lake Texoma Duck Creek Formation. 2 Link to comment Share on other sites More sharing options...
ThePhysicist Posted July 28, 2021 Share Posted July 28, 2021 30 minutes ago, Creek - Don said: Paraisurus - extremely rare extinct genus of mackerel sharks. Found all three teeth near Lake Texoma Duck Creek Formation. Lovely . That one farthest right doesn't look like one, however. Does it have cusplets? "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...
Creek - Don Posted July 28, 2021 Share Posted July 28, 2021 (edited) 10 minutes ago, ThePhysicist said: Lovely . That one farthest right doesn't look like one, however. Does it have cusplets? I found all three teeth at the same exact spot. Not sure whether this tooth falls under Paraisurus or something else. Edited July 28, 2021 by Creek - Don 1 Link to comment Share on other sites More sharing options...
ThePhysicist Posted July 28, 2021 Share Posted July 28, 2021 35 minutes ago, Creek - Don said: I found all three teeth at the same exact spot. Not sure whether this tooth falls under Paraisurus or something else. Welton and Farish say that Paraisurus does not have cusplets. This looks like a symphyseal from Cretolamna or maybe Cretoxyrhina - still a nice tooth! 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...
Creek - Don Posted July 28, 2021 Share Posted July 28, 2021 1 minute ago, ThePhysicist said: Welton and Farish say that Paraisurus does not have cusplets. This looks like a symphyseal from Cretolamna or maybe Cretoxyrhina - still a nice tooth! Thanks for ID'ing that tooth. I was also not 100 percent sure about that tooth either. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted August 1, 2021 Share Posted August 1, 2021 Procentrophorus Cretaceous Northumberland Formation Hornby Island BC Another pretty rare Squaliformes tooth from Hornby Island. Pretty unique little tooth. 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now