16. Concretion: Fossils are frequently found in the middle of concretions (a nodule of well-cemented sediment in the middle of a relatively uncemented sedimentary rock). Indeed, the critter probably ...

Study Sheds New Light on Fossil of Extinct Dolphin-Like Reptile That May Have Lived 100 Million Years Ago A remarkable fossil of a dolphin-like marine reptile, the ichthyosaur fossil, originating from ...

This fossil promises to change the narrative ... Many vertebrae and flipper bones were also present in the concretion. This discovery is particularly exciting because the specimen is about ...

Fossils from an ichthyosaurs found in North Canterbury are helping advanced understanding of these dolphin-like reptiles.