Maria Kondogianni

Maria Kondogianni

Maria Kondogianni
More ideas from Maria
- by joel bybee

Ammonites are an extinct group of marine invertebrate animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids than they are to shelled nautiloids such as the living Nautilus species.

AU: Air bubbles trapped in 2.7 Ba-old lava flows in the Pilbara suggest the Earth's atmosphere was far thinner than previously thought

AU: Air bubbles trapped in Ba-old lava flows in the Pilbara suggest the Earth's atmosphere was far thinner than previously thought