Jurassic perios
the Jurassic period was when the first bird, archaeopteryx, appeared
Toward the end of the Jurassic Period, one of the first birds, Archaeopteryx
(ahr-kee-AHP-ter-iks), appears.
An interesting addendum is that Archaeopteryx is an almost perfect intermediate between the dinosaurs and the birds. It has a series of characteristics that are definitely dinosaurian, yet it has feathers, a wishbone, and wings
The first land-dwelling organisms, which were likely plants and fungi, appeared during the Paleozoic Era. This transition from aquatic to terrestrial environments occurred around 460 million years ago during the Ordovician period.
Birds can appear to be flying in place due to strong winds or air currents that allow them to hover without moving forward.
Life first appeared on land around 500 million years ago during the Ordovician Period. Plants and some arthropods were among the first organisms to colonize terrestrial habitats, followed by amphibians and eventually reptiles.
Grey hairs typically first appear on the human body at the temples and the sides of the head.
Cyanobacteria fossils can be dated back to the Proterozoic Era.
the first bird to come to earth was about 160 million years ago. this is by faith bradford *by G1N4* to be more precise it was the Mezozoic era and the Jurassic period.
probably mesozoic era
Vertebrates first appeared during the Paleozoic era.
the cenozoic era
In the beginning of the world they were flightiness.
The first dinosaurs lived in the beginning of the Mesozoic Era (or the Age of Reptiles). Birds were amazingly discovered to be dinosaurs so dinosaurs were also alive in the Cenozoic (that's our time-the Age of Mammals) to today.
Pre-Cambrian. It's when bacteria first came about.
Actually they were from the Pennsylvanian Period and the Paleozoic Era...
Silurian
The Cenozoic era at about 65 million years ago. The Paleogene period.
9500 BC. When the switch between the Paleolithic Era to the Neolithic Era began.
horses foxes and all other mammals have backbones. Also, birds and fish also have backbones.