| Biovisual Charts and Models >> Fossil Specimens >> Rare Fossil Specimens Nodules |
| Rare Fossil Specimens Nodules 1. Annularia- (Calamites-leaves) in whorl 2. Nodule-Impression: Percopteris-Ref. Arnold 3. Nodule-Compression: Percopteris-Ref. Arnold 4. Nodule-Nueropteris: Large 12.5 cm. ref.Arnold 5. Nodule-Nueropteris: Regular in nodule form (U.S A.) 6. Sphenophyllum-Nodule 7. Lepidodendron Leaf-Lepidophyllum-Nodule |
