Gondwana is the name given to an ancient supercontinent.It is believed to have sutured between about 570 and 510 million years ago (Mya), joining East Gondwana to West Gondwana.A second, distinct mass extinction, the Hangenberg event, closed the Devonian period. A footprint of a reptile-like creature called an Isochirotherium - an ancestor of dinosaurs and crocodiles, that roamed the area 230 million years ago - was discovered in early April by a person out walking in Olesa de Montserrat, 40 kilometers (25 miles) north of Barcelona. Dinosaurs are a diverse group of Reptiles of the clade Dinosauria that first appeared during the Triassic period, which was a geologic period and system which spans 50.9 million years from the end of the Permian Period 252.17 million years ago (Mya), to the beginning of the Jurassic Period 201.3 Mya.The Triassic is the first period of the Mesozoic Era.- Galaxies - Space - Black Holes - Earth - Planets - Moon - Stars - Sun - Solar System Magnetics - Gravity Extra Terrestrial - ET - Space Aliens - Probes Space Station - Space Shuttle - Space Travel Satellites - Asteroids - Telescopes Time Measuring Pyramid of Complexity Science - Physics The photo on the right is not a Selfie.It is just an Artist rendition of what our galaxy would look like from another galaxy.
Overall, 19% of all families and 50% of all genera became extinct. Unicellular Organisms developed into Multicellular Organisms. Algae Dinosaurs Evolved and lived for 180 Million years (over 700 types).
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.
Ion is an Atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.
Pangaea started braking apart about 200 million years ago.
G Plates Earth Byte India broke away from the other fragments of Gondwana and began moving north.
Protein Domain is a conserved part of a given protein sequence and (tertiary) structure that can evolve, function, and exist independently of the rest of the protein chain. Prior to the Cambrian explosion, most organisms were simple, composed of individual cells occasionally organized into colonies.