Sauropods Drawings

Drawing is a visual art that makes use of any number of drawing instruments to mark a two-dimensional medium. Common instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoals, chalk, pastels, markers, stylus, or various metals like silverpoint. An artist who practices or works in drawing may be referred to as a draftsman or draughtsman.
A small amount of material is released onto the two dimensional medium which leaves a visible mark—the process is similar to that of painting. The most common support for drawing is paper, although other materials such as cardboard, plastic, leather, canvas and board, may be used. Temporary drawings may be made on a blackboard or whiteboard, or indeed almost anything. The medium has also become popular as a means of public expression via graffiti art, because of the easy availability of permanent markers.
Drawing is a form of visual expression and is one of the major forms within the visual arts. There are a number of subcategories of drawing, including cartooning. Certain drawing methods or approaches, such as "doodling" and other informal kinds of drawing such as drawing on a foggy mirror caused by the steam from a shower, or the surrealist method of "entoptic graphomania", in which dots are made at the sites of impurities in a blank sheet of paper, and lines are then made between the dots, may or may not be considered as part of "drawing" as a "fine art." Likewise tracing, drawing on a thin piece of paper, sometimes designed for that purpose (tracing paper), around the outline of preexisting shapes that show through this paper, is also not considered fine art, although it may be part of the draughtsman's preparation.