turtlefoot Posted January 23, 2020 Share Posted January 23, 2020 Hey All, I don't know if there is even enough of a fossil here to identify. I am nowhere near good enough to give a real good guess. First thought was either a small piece of a cephlapod or chiton. If it is a gastropod, it is a type that I have never found before. It was found on the side of a dry creek bed near Willow Springs, Missouri, USA in an Ordovician Formation. The remnant that remains measures 13mm wide by 15mm long. The bed the fossil remnant is laying is measures 24mm long. There is an indented type of division going horizontally across the fossil. It does not go all the way through to make the remnant two separates segments though (just an indentation type of division line). Other fossils in the same rock include gastropods, a brachiopod and what looks like a very worn rugose coral. If anyone can give me a probably identification, I would appreciate it. Link to comment Share on other sites More sharing options...
Coco Posted January 23, 2020 Share Posted January 23, 2020 Hi, Chitons have always 8 separate plates https://www.markd60.com/modern-day-dinosaurs/ (2nd pic) Coco 3 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
turtlefoot Posted January 23, 2020 Author Share Posted January 23, 2020 15 minutes ago, Coco said: Hi, Chitons have always 8 separate plates https://www.markd60.com/modern-day-dinosaurs/ (2nd pic) Coco I wasn't sure about that. This is definitely a single piece and the division does not give it a separate plate. Thanks for the help with the info on chitons. Doug Link to comment Share on other sites More sharing options...
Rockwood Posted January 23, 2020 Share Posted January 23, 2020 Part of a trilobite pygidium or cephalon internal mold may be worth consideration. 3 Link to comment Share on other sites More sharing options...
turtlefoot Posted January 23, 2020 Author Share Posted January 23, 2020 13 hours ago, Rockwood said: Part of a trilobite pygidium or cephalon internal mold may be worth consideration. Looking at some images online, the trilobite pygidium looks the closest so far. I really appreciate your help. Doug 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