Dec 7, 2025 · Cedar Valley Formation (Devonian - Iowa) The Cedar Valley Formation is located in eastern Iowa and dates back to the Devonian. It preserves a shallow subtidal environment. …

Nov 29, 2025 · Could this be a Placoderm bone? Or perhaps some kind of large predatory fish species? North Devon 🦴🫧🐟 Found from the Ilfracombe Slate Formation, which is from the Devonian period, …

Oct 17, 2025 · Red Hill Fossil Site, PA Catskill Formation Late Devonian Photos: There are two nice, open-access papers I've been looking at, but I haven't seen any figures in them that are obvious …

Jul 1, 2021 · I'm currently working on a simulation of extinct biomes, i'm slowly learning how to make everything as realistic as possible for realtime 3d simulation. I would like to start with plants recreated …

Dec 30, 2025 · Middle Devonian.. Leaf? Hamilton group middle Devonian plant? By GorgonopsidEnjoyer December 30, 2025 in Fossil ID

Oct 18, 2023 · Lidstroemella aspidum - Acrotretid Brachiopod 1 and 7/8 inches wide Middle Devonian Moscow Formation Windom Shale Hamilton Group Deep Springs Road Quarry Earlville, N.Y.

Jul 19, 2021 · Yes, sharks used to have spines! Xenacanth sharks in the Permian and Hybodont sharks did as well. This is the only shark spine I've seen from the Devonian - if you've got one, would love to …

Oct 2, 2023 · Platyceras bucculentum Platycerid Gastropods Middle Devonian Widder Shale Hungry Hollow Arkona, Ontario A generous gift from Kane

May 8, 2021 · Ptomatis patulus Bellerophontoid Gastropod (1 and 3/4 inches across) Middle Devonian Moscow Formation Windom Shale Hamilton Group Deep Springs Road Quarry Earlville, N.Y. A …

Dec 31, 2025 · Devonian and Carboniferous fish fossils Album created by Ammonit Updated December 5, 2023 5 images