Early ammonites had simple suture lines traced across their shells, while the sutures on species from the Cretaceous period (145 to 66 million years ago) formed intricate patterns that may have ...
3 min read Continents were on the move in the Cretaceous, busy remodeling the ... long-necked and toothy marine reptiles terrorized fish, ammonites, and mollusks in the seas; pterosaurs and ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback