The ability to visualise the internal anatomical structures of fish provides important information on their reproductive status and body condition and has made important contributions to many areas of ...

The coelacanth is known as a "living fossil" because its anatomy has changed little in the last 65 million years. Despite ...

This article is more than 4 years old. A 150 million-year-old fossil from southern Germany offers a rare glimpse into the possible internal anatomy of an ammonite.

The occurrence of permineralized stem fragments with diagnostic equisetophyte anatomy in Petrified Forest National Park, east-central Arizona provides an opportunity to characterize the internal ...