Allosaurus was first described by Othniel Marsh in 1877 and become one of the first well known dinosaurs. Marsh also named and gave the first description of the Apatosaurus (Brontosaurus) in that same year.
The seasons on Mars are similar to Earth's seasons, except that they are twice as long. This means Mars has a yearly cycle that humans could understand and adapt to.
The reason Mars is red is because it has iron oxide on its surface, which we commonly know as rust. This is what gives the planet Mars its reddish appearance.
