Fossil Record

adjective relating to or characteristic of animals

• The study of the faunal composition of the ecosystem is essential for understanding its biodiversity.
• We saw a wide variety of faunal species during our hike in the national park.
• Check out all the cool faunal creatures at the zoo!
• The faunal diversity in the coral reef is like a bustling city under the sea.

adjective relating to or denoting the era between the Paleozoic and Cenozoic eras, comprising the Triassic, Jurassic, and Cretaceous periods.

• The Mesozoic era is known for the dominance of dinosaurs.
• Did you know that the Mesozoic era was the age of dinosaurs?
• Back in the Mesozoic era, dinos ruled the world.
• Exploring the Mesozoic era is like stepping into a time machine to the age of dinosaurs.

noun a genus of flightless aquatic birds that lived during the Late Cretaceous period

• The hesperornis is an extinct aquatic bird that lived during the Late Cretaceous period.
• Have you heard of the hesperornis? It was like a prehistoric penguin!
• Dude, that hesperornis was one cool bird from back in the day.
• The hesperornis was a true pioneer of the ancient seas, navigating its way through unknown waters.

noun Aalenian

• The Aalenian stage is a subdivision of the Middle Jurassic period.
• I read that the Aalenian stage is from the Middle Jurassic period.
• Yo, did you know about the Aalenian stage in the Middle Jurassic period?
• Just like how the Aalenian stage marks a specific time period, we all have our own defining moments in life.

noun Aetosaurs are a group of heavily armored herbivorous archosaur reptiles that lived during the Triassic period.

• Aetosaurs were a group of heavily armored reptiles that lived during the Triassic period.
• Did you know aetosaurs were like the tanks of the prehistoric world?
• Those aetosaurs were basically walking tanks with scales.
• The aetosaurs were the knights in shining armor of the ancient reptile world.