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Devonian

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Devonian
Devonian specimens I have collected over time from the Louisville, Kentucky area.
  • Album created by Herb
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    • Cretodus sp., Kef-Kau Transition

      By Mikrogeophagus · Posted

      @Jared C I agree that the other Cretodus is pretty different. It actually took me a long time to settle on the genus because it stands out from most of my other Kau/Kef Cretodus specimens especially in terms of root morphology. It seems reminiscent of C. semiplicatus from the Cenomanian, but also shares many characteristics with the co-occurring teeth, so it's hard to make sense of it all. I think at the end of the day, this tooth is from the upper jaw and the previous tooth is from the lower of the same species.
       
      There were definitely two species as the very least, given that C. crassidens and C. houghtonorum lived together!
       
      Beyond those species, Cretodus, I think, could be the taxonomically messiest large Cretaceous shark genus in TX. Shimada did some good work separating them into 3 grades, but I have some hesitancy on the validity of those categorizations...
       
      All I can say for sure is that all of these Cretodus teeth have the strongest affinities with C. houghtonorum, but I doubt they are the same species!
    • Cretodus sp., Kef-Kau Transition

      By Jared C · Posted

      compared to the Cretodus that came before this in your album, I see a lot of differences. I wonder if the the early Coniacian has two species...
    • Crinoid stem

      By Brian James Maguire · Posted

      Thank you so much for your kind words 
    • Crinoid stem

      By boesch · Posted

      Bonjour , c'est la première fois que je vois des fossiles d'Irlande , et vos préparations sont remarquables , très belles et permettent un retour dans
      le temps impressionnant , Merci 
       
    • Shark Carcharhinus Pleistocene Texas

      By JamieLynn · Posted

      @Mikrogeophagus - these were finds from last year! Just finally getting them uploaded to the albums.....I am hoping to go back in January...that seems the best time to find em
    • Shark Carcharhinus Pleistocene Texas

      By Mikrogeophagus · Posted

      Galveston trip report coming soon??
    • 5406_Palaeoniscus_Quirnbach

      By rocket · Posted

      Sorry for a little confusion. The fish is NOT Palaeoniscum, it is Paramblypterus... Better to do not too many things at the same time..., photographed and archieved lot of Permian Material from Harz (Kupferschiefer with Palaeoniscum) and Permian Material from Pfalz Region (with Paramblypterus)... So, due to this and because I've always been a bit absent-minded , things got mixed up...
    • Paravian (microraptorine?) tooth

      By ThePhysicist · Posted

      Interesting, it does look like it could be the same morphology. Too bad the enamel's gone.
    • RWC1.2

      By Kane · Posted

      Yes, each photo will be treated as a separate entry in the album, as that is the way the software is configured.
    • RWC1.2

      By anonaddict · Posted

      I meant like how when you go to make a new entry in Collections it provides a ton of fields for you to fill in but it also allows you to add multiple images of the same specimen to an entry so for example if i search "RWC1" it would show a single entry for the rock designated RWC1 like heref
       
       
       
      https://www.thefossilforum.com/collections-database/chordata/amphibians-reptiles/pterosphenus-sp-r2380/
       
       
      from the way it looks currently if i were to add additional images to the album each photo will be treated as a separate entry and id have to manually copy paste the specimen data for it to appear on both pictures
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