A scientist who studies dinosaurs is called a paleontologist.
Onvol cannot be defined my regular means of searches in dictionaries and other methods and yielded no results. Therefore a definition cannot be provided.
Prospector
Saurischians
Sir Richard Owen.
Saurischians.
sile
Erosion is the term that is defined as movement of soil by water or wind.
An alchymist is an obsolete term for an alchemist, a person who searches for a universal cureall.
The term 'dinosaurs' refer to any of numerous extinct terrestrial reptiles of the Mesozoic era - ergo, they were not amphibians.
lizard-hipped
bird hipped
The term conserve can be defined as protecting from loss. It can also be defined as using something sparingly or being careful with something. Conserving energy for later use is an example using the term.