Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as large as nine feet wide. Some ammonites had long, straight shells, while others had ...

In 1980, Devonian fish fossils were uncovered in the ... by academic institutions and official bodies. A 19-centimeter ammonite, or shelled cephalopod, fossil, is embedded in the marble floor ...

The most recent discovery last year was an ammonite piece and trace fossil ... the most abundant and diverse group of fish during the Devonian period, which was 419 to 359 million years ago.