Named in honour of St Hilda, Hildoceras bifrons is a type of ammonite that lived in the Early Jurassic Period. It’s one of the most common ammonites present at Whitby. This example has a carved ...

As ammonites evolved throughout the Mesozoic era, between 252 and 66 million years ago, their shell structures grew smaller, more tightly coiled, and more complex. Early ammonites had simple ...

ammonites and pterosaurs. Together they provide one of the most comprehensive and unique snapshots of early Jurassic marine life. Fossilized soft parts, such as stomach contents or skin ...

Ammonoidea includes a more exclusive group called Ammonitida, also known as the true ammonites. These animals are known from the Jurassic Period, from about 200 million years ago. Most ammonites died ...

They are: Early Jurassic (201.4 million to 174.7 million years ago ... Ancient relatives of squids and octopi (cephalopods) ...

A newly described plesiosaur fossil from southern Germany is providing crucial evidence about the diversification of these ancient marine reptiles during the Early Jurassic. Unearthed from the ...

“It also suggests that distinct plesiosaur communities may have evolved in different regions of the European seas during the Early Jurassic.” Implications for Plesiosaur Evolution and ...