Archaeopteryx for flightless birds. In 2010, Robert L. Nudds and Gareth J. Dyke in the journal "Science" published a paper in which they analysed the rachises of the primary feathers of "Confuciusornis" and "Archaeopteryx". The analysis suggested that the rachises on these two genera were thinner and weaker than those of modern birds relative to body mass. The authors determined that "Archaeopteryx" and "Confuciusornis", were unable to use flapping flight. This study was criticized by Philip J. Currie and Luis Chiappe. Chiappe suggested that it is difficult to measure the rachises of fossilized feathers, and Currie speculated that "Archaeopteryx" and "Confuciusornis"
Color a Dinosaur Color a Dinosaur Color a Dinosaur is a 1993 electronic coloring book video game for children. It was developed by FarSight Studios for the Nintendo Entertainment System. The player colors various dinosaurs by using the provided dinosaur images and palettes. Players can either color using the free form mode or in the automatic mode where they choose only a color. Intended for ages 3 to 6, the game lacks sophisticated features such as animation and minigames, and the basic colors are either brightly colored patterns or limited variations on pink or red. An extra set of patterns can be reached